25,743 results on '"Visual Acuity physiology"'
Search Results
2. The effect of central and peripheral luminance on visual acuity.
- Author
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Giang DT, Anh TM, Lan NT, Quan NV, and Duong PH
- Subjects
- Humans, Male, Female, Adult, Young Adult, Refractive Errors physiopathology, Middle Aged, Visual Acuity physiology, Lighting
- Abstract
Context: Lighting conditions significantly influence visual acuity (VA), visual function, and quality of life. Previous research highlighted a correlation between luminance and VA but left a gap in understanding the impact of surrounding luminance. This study focused on investigating the effects of both central and peripheral luminance on VA., Purpose: This study aimed to investigate the influence of both central and surrounding luminance on VA through distance VA measurements., Settings and Design: A dual-component lighting system was utilized, comprising a self-illuminated ETDRS chart and a skyLED system for consistent surrounding illumination. Two experimental setups were conducted: the first varied the central luminance (25 ± 2-341 ± 10 cd/m²), while the second maintained a constant central luminance (150 ± 5 cd/m²) and varied the surrounding luminance (4 ± 2 cd/m² OFF-105 ± 10 cd/m² ON)., Methods: Sixty-six participants with refractive errors between 0.0 D and -2.75 D were tested under various lighting conditions. Both uncorrected refractive error (URE) and corrected refractive error (CRE) eyes were evaluated., Statistical Analysis Used: Paired t-tests were used to evaluate the statistical significance of differences in VA scores., Results: Experiment 1 demonstrated a significant increase in VA scores, with mean improvements of -0.120 LogMAR for URE eyes and -0.073 LogMAR for CRE eyes as chart luminance increased from 26 cd/m² to 153 cd/m². Experiment 2 further showed a notable improvement in VA scores under varied surrounding luminance conditions, with mean improvements of - 0.118 LogMAR for URE eyes and -0.073 LogMAR for CRE eyes as luminance increased from 4 cd/m² to 102 cd/m²., Conclusions: This study emphasizes the significant impact of both central and peripheral luminance on VA. The introduction of the skyLED lighting system underlines the importance of optimal lighting for visual performance., (Copyright © 2024 Copyright: © 2024 Indian Journal of Ophthalmology.)
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- 2024
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3. Traumatic cataract with iridodialysis.
- Author
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Chee SP, Weikert MP, Wallace R, De Francesco T, Ahmed I, Fram N, and McCabe CM
- Subjects
- Female, Humans, Middle Aged, Iris diagnostic imaging, Iris injuries, Iris surgery, Lens Implantation, Intraocular economics, Lens Implantation, Intraocular methods, Microscopy, Acoustic, Tomography, Optical Coherence, Cataract Extraction economics, Cataract Extraction instrumentation, Cataract Extraction methods, Cataract diagnosis, Cataract etiology, Corneal Injuries complications, Corneal Injuries diagnosis, Corneal Injuries economics, Corneal Injuries surgery, Iris Diseases etiology, Iris Diseases surgery, Iris Diseases diagnosis, Visual Acuity physiology
- Abstract
A 56-year-old woman presented with left blurring of vision for 6 months. She gave a history of previous left eye trauma for which she had undergone suturing of a corneal laceration. The right eye was 20/20 and normal. Her left visual acuity was hand motion. A linear corneal scar was present extending obliquely from 5 to 9 o'clock. In addition, there were iridodialysis from 8 to 1 o'clock, a fixed dilated pupil, and extensive zonulysis with displacement of a dense nuclear sclerotic cataract temporally (Figures 1 and 2JOURNAL/jcrs/04.03/02158034-202411000-00015/figure1/v/2024-10-18T161301Z/r/image-tiffJOURNAL/jcrs/04.03/02158034-202411000-00015/figure2/v/2024-10-18T161301Z/r/image-tiff). There was no vitreous in the anterior chamber. The posterior segment appeared normal, as were the intraocular pressures. Ultrasound biomicroscopy of the anterior segment of the left eye confirmed the absence of zonular fibers from 6 to 12 o'clock. Optical coherence tomography was unable to capture any image of the macular or optic nerve. Corneal topography showed irregular astigmatism. The endothelial cell density was 1650 cells/mm2. Describe how you would manage this case surgically, given that her financial resources were limited, and she was unable to afford a prosthetic iris., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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4. Exploring retinal vessel density alterations in prolactinoma patients: Insights from OCTA imaging.
- Author
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Hayat SC, Yilmaz YC, Kelebek M, and Hatipoglu E
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- Humans, Male, Female, Retrospective Studies, Adult, Visual Fields physiology, Optic Disk blood supply, Optic Disk pathology, Fundus Oculi, Middle Aged, Young Adult, Tomography, Optical Coherence methods, Prolactinoma diagnosis, Prolactinoma physiopathology, Pituitary Neoplasms diagnosis, Fluorescein Angiography methods, Retinal Vessels pathology, Retinal Vessels diagnostic imaging, Retinal Ganglion Cells pathology, Visual Acuity physiology, Nerve Fibers pathology
- Abstract
Purpose: To investigate microvascular changes in the macular and peripapillary area in prolactinoma patients by using optical coherence tomography angiography (OCTA)., Design: A retrospective study., Methods: This study included 40 patients with treatment-naive prolactinoma and 42 healthy controls. Participants underwent comprehensive ophthalmic examinations, visual field testing, and optical coherence tomography (OCT) assessments, including retinal nerve fiber layer (RNFL) thickness, macular, and peripapillary region OCTA by using the Topcon DRI OCT Triton Swept Source-OCT system. The OCTA results were evaluated between groups and then correlated with PRL levels., Results: The differences in best-corrected visual acuities were statistically significant among the groups. The RNFL thickness in the superior and nasal quadrants was significantly lower in the prolactinoma group. The prolactinoma group showed significant reductions in macular vessel density (VD) across all layers than the control group, except in the deep retinal capillary plexus temporal quadrants. The radial peripapillary capillary (RPC) temporal VD in the prolactinoma group was significantly lower. In patients with optic neuropathy, correlations were observed between the RPC temporal and RNFL temporal sectors (r = 0.650, P = 0.03), and between the RPC inferior and RNFL inferior sectors (r = -0.612, P = 0.045). Between PRL levels and OCTA parameters, negative correlations were observed (RPC inferior: r = -0.452, P = 0.003; DCP superior: r = -0.379, P = 0.016)., Conclusion: Our study revealed reduced VD in the macula and RPC temporal regions in patients with treatment-naive prolactinoma. OCTA holds significant importance in detecting potential retinopathies and vasculopathies. Future research should focus on examining pre- and post-treatment changes in treatment-naive patients without ON to better understand the impact of prolactinoma., (Copyright © 2024 Copyright: © 2024 Indian Journal of Ophthalmology.)
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- 2024
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5. THE MINI-STEAMROLL: An Abbreviated Variation of the Steamroller Maneuver After Pneumatic Retinopexy for Rhegmatogenous Retinal Detachment.
- Author
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Pecaku A, El-Sehemy A, Melo IM, Demian SE, Andreoli MT, Ramachandran A, and Muni RH
- Subjects
- Humans, Prospective Studies, Male, Female, Middle Aged, Aged, Vitrectomy methods, Fluorocarbons administration & dosage, Patient Positioning, Retinal Perforations surgery, Retinal Perforations diagnosis, Subretinal Fluid, Adult, Tomography, Optical Coherence, Prone Position, Retinal Detachment surgery, Retinal Detachment diagnosis, Visual Acuity physiology, Endotamponade methods
- Abstract
Purpose: To describe a novel positioning maneuver for patients with rhegmatogenous retinal detachment after pneumatic retinopexy (PnR)., Methods: Single-center prospective case series of primary rhegmatogenous retinal detachments referred to St. Michael's Hospital, Toronto, Canada, between 2021 and 2023. All patients underwent PnR. Baseline ultra-widefield fundus imaging and repeat imaging 10 minutes after the gas injection was performed. After PnR, patients were instructed to perform the mini-steamroll maneuver, which consists of a face-down position for 10 minutes followed by positioning to the retinal break. The reduction of subretinal fluid volume after the initial face-down position was evaluated with clinical examination and ultra-widefield imaging., Results: Six patients who presented with primary bullous rhegmatogenous retinal detachment and a sizable superior break were enrolled. The mini-steamroll maneuver resulted in a rapid and significant reduction of subretinal fluid in all patients with bullous rhegmatogenous retinal detachment and large superior breaks, allowing subretinal fluid to be expressed into the vitreous cavity with 10 minutes of face-down positioning. One patient required a sequential PnR. Primary retinal reattachment was achieved in all cases. This approach was well-tolerated by patients., Conclusion: This case series demonstrates that the mini-steamroll maneuver may be a suitable alternative for patient positioning after PnR in certain cases. The mini-steamroll is a simpler positioning regimen with the potential benefits of direct-to-break and full steamroller maneuver.
- Published
- 2024
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6. FIVE-YEAR CHANGES IN METAMORPHOPSIA AND THE ASSOCIATION OF OUTER RETINAL LAYERS AFTER VITRECTOMY FOR RHEGMATOGENOUS RETINAL DETACHMENT INVOLVING THE MACULA.
- Author
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Okuda T, Higashide T, and Sugiyama K
- Subjects
- Humans, Female, Male, Middle Aged, Aged, Follow-Up Studies, Retrospective Studies, Adult, Time Factors, Vitrectomy methods, Retinal Detachment surgery, Retinal Detachment diagnosis, Visual Acuity physiology, Tomography, Optical Coherence methods, Vision Disorders physiopathology, Vision Disorders diagnosis, Macula Lutea pathology, Macula Lutea diagnostic imaging
- Abstract
Purpose: To evaluate the 5-year changes in metamorphopsia and outer retinal morphology after vitrectomy for macula-off rhegmatogenous retinal detachment., Methods: The authors included 21 eyes from 21 patients with macula-off rhegmatogenous retinal detachment who underwent pars plana vitrectomy. Metamorphopsia was quantified using M-CHARTS. Using spectral-domain optical coherence tomography, the authors assessed the risk factors for metamorphopsia severity 5 years after surgery., Results: Metamorphopsia scores substantially improved from 1 month to 5 years postoperatively; however, they remained unchanged from 1 year to 5 years postoperatively. Overall, 11 patients (52.4%) had metamorphopsia 5 years postoperatively. The metamorphopsia scores in eyes with a continuous interdigitation zone and ellipsoid zone at 5 years were considerably lower than those in eyes with a disrupted interdigitation zone. Multiple regression analysis revealed that the metamorphopsia score at 5 years was markedly associated with the score at 1 month and continuous interdigitation zone., Conclusion: No statistically significant change was observed in metamorphopsia scores after 1 year postoperatively, and >50% of the patients had metamorphopsia at 5 years postoperatively. The improvement was associated with lower metamorphopsia scores at 1 month and continuous interdigitation zone at 5 years. Moreover, the study revealed that early metamorphopsia was a poor prognostic marker for long-term functional deficits.
- Published
- 2024
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7. Effect of brimonidine on visual indices in patients with acute optic neuritis: A single blind randomized clinical trial.
- Author
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Arish M, Sargazi M, Dakkali MS, Mohammadzamani S, Rasouli S, and Asani M
- Subjects
- Humans, Adult, Female, Male, Single-Blind Method, Young Adult, Middle Aged, Adrenergic alpha-2 Receptor Agonists pharmacology, Adrenergic alpha-2 Receptor Agonists administration & dosage, Acute Disease, Color Vision drug effects, Color Vision physiology, Optic Neuritis drug therapy, Optic Neuritis physiopathology, Brimonidine Tartrate administration & dosage, Brimonidine Tartrate pharmacology, Visual Acuity drug effects, Visual Acuity physiology, Contrast Sensitivity drug effects, Contrast Sensitivity physiology
- Abstract
Purpose: This study investigates brimonidine's potential effect on visual functions, particularly contrast sensitivity (CS), an indicator of retinal ganglion cell function., Methods: In this single-blind, randomized clinical trial, 60 patients (aged 23-56) with first-episode acute optic neuritis within seven days of symptom onset were randomly assigned to brimonidine or control groups. The intervention group received brimonidine three times daily for three months, while the control group received synthetic tears with the same dosage and frequency. Primary outcomes were changes in CS, visual acuity (VA), and color vision at one and three months post-treatment. Repeated measures ANOVA was used to assess statistically significant and partial eta squared (η2) values, mean differences, and clinically significance important were reported., Results: All participants completed the study without complications. VA improved significantly in both groups by follow-up end (p < 0.001), with significant improvement from first to third month only in the brimonidine group (p < 0.001). The mean VA difference between groups was not statistically and clinically significant. CS showed statistically significant improvement within both groups (p < 0.001) and between groups (p < 0.001), with a large effect size (partial η2 = 0.28). The mean CS difference between groups (14.5) was clinically considerable. No significant changes in color vision were observed between groups (p = 0.96)., Conclusion: Brimonidine significantly improved contrast sensitivity compared to placebo and was well-tolerated. Its neuroprotective effects suggest it may be beneficial in treating optic neuritis and preserving retinal ganglion cell function., Trial Registration: Prospectively registered at Iranian Clinical Trial Registration; Registration date 3 December 2022; Registration number: IRCT20221127056631N1., Competing Interests: Declaration of competing interest All authors declare that they have no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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8. Effects of orthokeratology and spectacle lenses with highly aspherical lenslets on unilateral myopic anisometropia control.
- Author
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Zhai J, Fang W, Zhang Y, Lian H, Hou L, Shen M, and Lu F
- Subjects
- Humans, Male, Child, Female, Adolescent, Follow-Up Studies, Retrospective Studies, Orthokeratologic Procedures methods, Myopia physiopathology, Myopia therapy, Anisometropia physiopathology, Anisometropia therapy, Refraction, Ocular physiology, Eyeglasses, Axial Length, Eye physiopathology, Visual Acuity physiology
- Abstract
Purpose: To evaluate the 1-year effects of orthokeratology (OK) lenses and spectacle lenses with highly aspherical lenslets (HALs) on axial length (AL) elongation in children with unilateral myopic anisometropia., Methods: This ambispective cohort study recruited 81 children aged 8-14 years with unilateral myopic anisometropia. Of these, 42 participants (mean age 11.07 ± 1.54 years; 23 males) were treated with monocular OK lenses (OK group), and 39 (mean age 10.64 ± 1.72 years; 22 males) with binocular HALs (HAL group). Changes in AL and spherical equivalent refraction (SER) from baseline at 3, 6 and 12 months were compared between eyes and groups. Kaplan-Meier estimation and Cox proportional hazard regression were performed to analyse the risk of myopia onset in the initially non-myopic eyes., Results: Mean axial elongation in the myopic and non-myopic eyes at the 12-month follow-up visit were 0.17 ± 0.20 and 0.41 ± 0.26 mm in the OK group (p < 0.001) and 0.10 ± 0.15 and 0.12 ± 0.12 mm in the HAL group (p = 0.32), respectively. Compared with the OK group, the non-myopic eyes in the HAL group had less axial elongation, lower cumulative myopia incidence and percentage of participants with rapid myopic shift at the 6- and 12 month follow-up (all p < 0.05). Cox regression analysis showed that a higher initial SER decreased the risk of myopia onset significantly in the initially non-myopic eyes (B = -2.06; 95% CI, 0.03-0.49; p = 0.003)., Conclusions: Monocular OK lenses suppressed axial elongation in the myopic eye and minimised anisometropia; however, the non-treated contralateral eye may experience faster myopia onset and myopic shift. Binocular HALs can effectively reduce axial elongation in both eyes of children with unilateral myopic anisometropia., (© 2024 College of Optometrists.)
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- 2024
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9. Corneal Endothelial Cell Loss During Uneventful Cataract Surgery in Hispanics Versus Non-Hispanics.
- Author
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Heinz Montoya R, Edmundo Vasquez L, Lee C, Hancock S, and Kheirkhah A
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- Aged, Aged, 80 and over, Female, Humans, Male, Middle Aged, Anterior Chamber pathology, Cell Count, Retrospective Studies, Visual Acuity physiology, Corneal Endothelial Cell Loss etiology, Corneal Endothelial Cell Loss pathology, Endothelium, Corneal pathology, Hispanic or Latino, Lens Implantation, Intraocular, Phacoemulsification
- Abstract
Purpose: Limited information exists on the possible effects of ethnicity on corneal endothelial cell parameters and their changes during cataract surgery. Thus, we evaluated corneal endothelial cell density (ECD) and endothelial cell loss (ECL) during surgery for senile cataract in Hispanic and non-Hispanic White adults., Methods: This retrospective study included 312 eyes of 227 patients ≥50 years who underwent phacoemulsification with intraocular lens implantation for senile cataract. Preoperatively and 1 to 2 months after surgery, specular microscopy was performed to measure ECD, coefficient of variation (CV), and hexagonal cell percentage (HEX). Regression analysis was used to compare baseline values as well as surgery-related changes in corneal endothelial cell parameters between Hispanic and non-Hispanic patients considering demographics, biometric parameters, and intraoperative cumulative dissipated energy (CDE)., Results: There were 109 Hispanics and 118 non-Hispanics. Anterior chamber depth (ACD) was significantly lower in Hispanics (3.12±0.36 mm) compared with non-Hispanics (3.25±0.37 mm, P =0.009). There were no significant differences in baseline ECD between Hispanics (2,547±365 cells/mm 2 ) and non-Hispanics (2,483±380 cells/mm 2 , P =0.17). There were also no significant differences in ECL (16.8%±17.0% vs. 17.4%±18.1%, P =0.46), increase in CV (3.8%±20.7% vs. 1.5%±21.6%, P =0.51), and decrease in HEX (-2.7%±8.5% vs. -1.8%±7.0%, P =0.33) between these two groups. Regression analysis showed that ECL was associated with a shallower ACD ( P =0.003), a higher CDE ( P <0.001), but not with ethnicity ( P =0.46)., Conclusion: There are no significant differences in ECD and ECL between Hispanics and non-Hispanics undergoing cataract surgery. Although Hispanics have a shallower ACD, the ethnic difference seems to be clinically insignificant., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Contact Lens Association of Ophthalmologists.)
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- 2024
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10. Optical phase nullification partially restores visual and stereo acuity lost to simulated blur from higher-order wavefront aberrations of keratoconic eyes.
- Author
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Lakshmi Marella B, Conway ML, Vaddavalli PK, Suttle CM, and Bharadwaj SR
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- Humans, Adult, Female, Male, Young Adult, Depth Perception physiology, Visual Acuity physiology, Keratoconus physiopathology, Corneal Wavefront Aberration physiopathology
- Abstract
Contrast demodulation and phase distortions are exaggerated in retinal images blurred by the higher-order wavefront aberrations of keratoconic eyes. While the performance loss from the former parameter is well understood, little is known about the impact of the latter on visual functions in this disease condition. The present study investigated the impact of phase distortions on the monocular logMAR visual acuity, letter discriminability and random-dot stereoacuity of seventeen visually healthy adults (ten for visual acuity and letter discriminability; ten for stereoacuity and three common to both experiments) using images that were computationally blurred by four different higher-order wavefront aberration profiles of keratoconic eyes that showed significant distortions in the phase spectrum. Participants viewed these images through 2 mm artificial pupils to negate their native ocular wavefront aberrations. The results showed progressive losses in visual acuity and stereoacuity with increasing blur, a third of which could be recovered following phase nullification. Letter discriminability also improved following phase nullification, more so for smaller than larger optotypes. Stereoacuity loss and, consequently, its recovery following phase nullification was more prominent for profiles simulating unilateral asymmetric keratoconus than for profiles simulating bilateral symmetric keratoconus. These results agree with previous reports obtained from blur induced with lower-order aberrations and indicate that a similar trend may be observed for more complex patterns of blur like keratoconus. Overall, both contrast demodulation and misalignment of the local features of the blurred image may contribute to losses of spatial and depth vision in keratoconus. Phase nullification may partially mitigate these losses, thereby allowing the processing of finer spatial details and veridical disparity estimations for improved depth perception., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier Ltd. All rights reserved.)
- Published
- 2024
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11. Macular vascular density alteration patterns in paediatric optic neuritis patients with serum MOG antibody positivity detected by optic coherence tomography angiography.
- Author
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Peng C, Li S, Zuo H, Liu X, Tian LR, Zhang R, Li L, and Shi W
- Subjects
- Humans, Female, Male, Child, Adolescent, Retinal Vessels diagnostic imaging, Microvascular Density, Visual Acuity physiology, Macula Lutea diagnostic imaging, Fluorescein Angiography methods, Follow-Up Studies, Optic Neuritis immunology, Optic Neuritis diagnostic imaging, Optic Neuritis blood, Tomography, Optical Coherence, Myelin-Oligodendrocyte Glycoprotein immunology, Autoantibodies blood
- Abstract
Purpose: The retinal microvascular network plays a crucial role in inflammatory injury in paediatric optic neuritis (PON) with serum MOG antibody positivity (MOG + PON). This study compared retinal microvascular densities and structural alterations in MOG + PON eyes with paediatric isolated optic neuritis (PION) eyes and followed up with the final best-corrected visual acuity (BCVA) after 6 months., Methods: A total of 29 children (52 eyes) with PON, including 15 MOG + PON cases (28 eyes), 6 PION cases (10 eyes), 2 neuromyelitis optica spectrum disorders associated PON(NMOSD-PON) cases (4 eyes), 6 MOG-associated disease (MOGAD) patients without ON-affected eyes (MOG + NPON) cases (10 eyes) and age- and gender-matched healthy controls (HCs) underwent superficial/deep retinal angiography density (SAD/DAD) by optical coherence tomography angiography (OCTA). Their BCVAs were followed up until 6 months after PON onsets., Results: MOG + PON cases had better final BCVAs than PION and NMOSD-ON. MOG + PON (35.7 ± 10.3 %) and PION (40.1 ± 10.3 %) eyes experienced severe SAD reductions in contrast to MOGAD+NPON (48.7 ± 5.2 %) and HCs eyes (55.6 ± 8.2 %). However, DAD in MOG + PON eyes (48.5 ± 9.2 %) and MOG + NPON eyes (53.1 ± 3.3 %) increased compared to HC eyes (45.7 ± 9.6 %; p = 0.028 and 0.009, respectively). SAD reduction occurred in acute PON and was detected as early as 2 weeks after PON onset., Conclusions: MOG + PON eyes had better final BCVAs than PION eyes, which displayed superficial retinal microvascular perfusion reductions and deep microvascular perfusion increases. SAD could be a sensitive surrogate for PON attacks in children with MOGAD., Competing Interests: Declaration of competing interest The authors declare that they have no conflict of interest., (Copyright © 2024 Elsevier B.V. All rights reserved.)
- Published
- 2024
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12. Heterogenous relapse and efficacy endpoint definitions for neuromyelitis optica spectrum disorder studies: A systematic review.
- Author
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Rocha RB, Bomtempo FF, Tadinac ACB, Allioni GA, Silva GD, and Telles JPM
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- Humans, Visual Acuity physiology, Neuromyelitis Optica diagnosis, Neuromyelitis Optica physiopathology, Neuromyelitis Optica therapy, Recurrence, Outcome Assessment, Health Care standards
- Abstract
Background: Over the last years, multiple studies have been dedicated to evaluate the efficacy of different treatment options for Neuromyelitis Optica Spectrum Disorder (NMOSD). However, there is a wide variety of endpoints employed across these studies. Our goal is to conduct a systematic review describing the endpoints utilized in studies related to NMOSD., Methods: Medline, Embase, and Cochrane were searched from inception to May 2023, to identify studies analyzing treatment options in patients with NMOSD. We collected data on baseline study characteristics and all efficacy outcomes available., Results: We included 127 studies and identified approximately 40 different efficacy endpoints, categorized into 1) relapse, 2) disability, 3) visual acuity, and 4) surrogate outcomes. Most studies were retrospective (54.3 %) and aimed at attack prevention (81.4 %). The most common relapse-related outcomes were annualized relapse rate (73.2 %), followed by relapse rate (50.4 %), and relapse-free rate (36.2 %). The relapse definition also varied widely among studies, with only 73 (57.4 %) studies explicitly addressing the definition used. The most common disability outcome was the Expanded Disability Scale (97.6 %), followed by the Modified Rankin Scale (7.9 %). Visual Acuity Score was employed in 14.2 % of studies, followed by Visual Evoked Potentials (6.3 %). Imaging was the most common surrogate (20.5 %), followed by the fraction of B cells (18.1 %)., Conclusion: Publications were heterogeneous in measuring efficacy, with different use of endpoints and relapse definitions. Standardization across studies would improve data analysis and application in clinical practice., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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13. Evaluating the impact of polycythemia vera on retinal and optic nerve head microvascularity: An OCTA study.
- Author
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Cicek MF, Oba T, Ağın A, Ayer M, and Onder F
- Subjects
- Humans, Male, Female, Middle Aged, Adult, Fundus Oculi, Visual Acuity physiology, Cross-Sectional Studies, Microvessels pathology, Microvessels diagnostic imaging, Optic Nerve Diseases diagnosis, Optic Nerve Diseases etiology, Optic Nerve Diseases physiopathology, Follow-Up Studies, Tomography, Optical Coherence methods, Polycythemia Vera complications, Polycythemia Vera diagnosis, Optic Disk blood supply, Retinal Ganglion Cells pathology, Retinal Vessels diagnostic imaging, Retinal Vessels pathology, Nerve Fibers pathology, Fluorescein Angiography methods
- Abstract
Purpose: This study aims to assess the impact of polycythemia vera (PV) on retinal and optic nerve head (ONH) vessel density (VD) parameters, macular ganglion cell complex (mGCC) thickness, and retinal nerve fiber layer (RNFL) thickness compared to healthy controls., Methods: Forty eyes of 20 patients with PV and 40 eyes of 20 age-gender-matched healthy controls underwent comprehensive ophthalmologic assessments and optic coherence tomography angiography (OCTA). RNFL and macular GCC measurements were obtained simultaneously with vascular parameters by AngioVue OCTA using the single-scan protocol. Peripapillary VD was examined across eight sectors, whereas parameters including RNFL, GCC, and macular VD were analyzed in four quadrants., Results: Patients with PV exhibited significant reductions in the average RNFL thickness ( P = 0.014) and RNFL thickness in superior ( P < 0.001) and inferior ( P = 0.003) quadrants compared to controls. Additionally, mGCC thickness in all quadrants significantly reduced in the PV group ( P < 0.001). ONH VD parameters, including whole-image VD ( P < 0.001) and peripapillary VD ( P < 0.001), were significantly reduced in patients with PV. Similarly, macular VD parameters were significantly lower in the PV group ( P < 0.001)., Conclusion: This study highlights substantial vascular and structural alterations in the retina and ONH of patients with PV compared to healthy controls. These changes likely stem from microvascular dysfunction associated with PV. These findings suggest further research to understand the underlying mechanisms and develop targeted therapeutic strategies for managing ocular complications in patients with PV., (Copyright © 2024 Copyright: © 2024 Indian Journal of Ophthalmology.)
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- 2024
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14. Automated visual acuity estimation by optokinetic nystagmus using a stepped sweep stimulus.
- Author
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Turuwhenua J, LinTun Z, Norouzifard M, Edmonds M, Findlay R, Black J, and Thompson B
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- Humans, Female, Adult, Male, Pilot Projects, Young Adult, Middle Aged, Vision Tests methods, Reproducibility of Results, Nystagmus, Optokinetic physiology, Visual Acuity physiology
- Abstract
Purpose: To describe an automatic system for objective measurement of visual acuity (VA) using optokinetic nystagmus (OKN). This pilot study tested the system's sensitivity and specificity for detecting reduced VA in healthy adults by comparing VA-OKN to VA with an Early Treatment of Diabetic Retinopathy Study (ETDRS) chart (VA-ETDRS)., Methods: Adult participants (age 30 ± 12 years) with either reduced VA (n = 11, VA-ETDRS > 0.20 logMAR) or normal VA (n = 12, VA-ETDRS ≤ 0.20 logMAR) completed monocular VA-OKN measurements in each eye. The VA-OKN stimulus was an array of drifting (5°/s) vanishing discs presented in descending/ascending size order (0.00-1.00 logMAR in 0.10 steps). The stimulus was stepped every 2 s, and 10 sweeps were shown per eye (five ascending and five descending). Eye-tracking data determined when OKN activity ceased (descending sweep) or began (ascending sweep), which was used to determine VA-OKN for each sweep. The estimates were averaged across sweeps to produce an automated VA-OKN. The automated sweeps were then provided in randomised order to a reviewer blinded to the VA-ETDRS findings who determined a final VA-OKN for an eye., Results: A single randomly selected eye from each observer was used for analysis. The sensitivity and specificity of VA-OKN using the same 0.20 logMAR threshold as VA-ETDRS was 100%. Comparisons between the VA-OKN and VA-ETDRS measures were made for participants in the reduced VA group. There was no significant difference between VA-OKN and VA-ETDRS (p = 0.55) and the two measures produced comparable values (r
2 = 0.84, 95% limits of agreement = 0.19 logMAR, intra-class correlation coefficient = 0.90 [95% CI:0.68-0.97])., Conclusions: Visual acuity using optokinetic nystagmus correctly identified a VA deficit in adults and for those with a VA deficit, VA-OKN was strongly correlated with the gold-standard clinical measure of VA. OKN is a promising method which has the potential for use in cognitively impaired adults and pre-verbal children., (© 2024 The Author(s). Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)- Published
- 2024
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15. Jacobi-Fourier phase masks as ophthalmic elements to correct presbyopia.
- Author
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Salas-Sanchez Á, González-Amador E, Padilla-Vivanco A, Toxqui-Quitl C, Arines J, and Acosta E
- Subjects
- Humans, Pupil physiology, Lenses, Intraocular, Computer Simulation, Contact Lenses, Presbyopia physiopathology, Fourier Analysis, Visual Acuity physiology
- Abstract
Purpose: Investigations into the correction of presbyopia have considered lens design, clinical implications and the development of objective metrics such as the visual Strehl ratio. This study investigated the Jacobi-Fourier phase mask as an ophthalmic element in the correction of presbyopia. The goal was to develop a contact or intraocular lens whose performance was largely insensitive to changes in pupil diameter., Methods: Numerical simulations based on Fourier optics were performed to evaluate three different Jacobi-Fourier polynomials, with the aim of providing a range of clear vision (1 Dioptre (D)). Performance was evaluated for three pupil sizes (6, 4 and 2 mm), while polychromatic images were simulated using three different wavelengths (656.3, 587.6 and 486.1 nm). The Neural Transfer function was included in the simulation. To validate the method and results, we used the Visual Strehl combined objective metric (VS
Combined ) currently used in visual optics. This metric gives more weight to the phase transfer function and is more suitable for non-symmetrical phase functions., Results: Numerical validation showed the suitability of the Jacobi-Fourier phase masks for extending the range of clear vision of presbyopic eyes, providing a visual acuity of at least 0.10 logMAR (6/7.5 Snellen) at all distances between 1 and 6 m. The results show a range of clear vision of 1D was not affected by changes in pupil size, an increase in retinal image contrast accompanied by image artefact reduction by increasing the radial order of the Jacobi-Fourier phase mask and a reduction of wavelength dependence of the retinal images. These results are supported by simulated images and the objective criterion VSCombined ., Conclusions: The use of Jacobi-Fourier phase masks as ophthalmic elements for presbyopic correction show promising results, with a good range of clear vision and reduced dependence on pupil size and chromatic aberration., (© 2024 College of Optometrists.)- Published
- 2024
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16. Spherical Aberration Changes in Patients With Early Presbyopia Wearing Aspheric Multifocal Soft Contact Lenses in South Korea.
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Jang HS and Lee KJ
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- Humans, Male, Female, Middle Aged, Republic of Korea, Adult, Refraction, Ocular physiology, Corneal Wavefront Aberration physiopathology, Patient Satisfaction, Aged, Presbyopia physiopathology, Presbyopia therapy, Visual Acuity physiology, Contact Lenses, Hydrophilic
- Abstract
Objectives: The aim of this study was to evaluate the impact of wearing center-near (CN) and center-distance (CD) multifocal contact lenses (MFCLs) on spherical aberrations and visual acuity in patients with early presbyopia., Methods: Fifty participants with early presbyopia wore CN-MFCLs and CD-MFCLs for 1 week. The average corrected refractive power was -2.65±1.67 D. Spherical aberration was measured using an auto-refractor after 1 week of lens use., Results: No significant difference in overall visual acuity was observed when using either lens. Participants favored CD-MFCLs for distance vision and CN-MFCLs for near vision. This study highlighted variations in aberration and satisfaction based on age, refractive errors, and individual responses. Patients with positive spherical aberrations tended to benefit from CN-MFCLs, which improved both distance and near vision, although additional correction was required for clear distance vision. Patients with early presbyopia generally preferred CN-MFCLs when positive aberration was prevalent, whereas those with negative aberration reported greater satisfaction with distance vision when wearing CD-MFCLs., Conclusions: This study confirmed that wearing MFCLs leads to changes in spherical aberration and visual acuity in patients with early presbyopia, particularly when positive aberration prevails. Future research should investigate these effects across different stages of presbyopia., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Contact Lens Association of Ophthalmologists.)
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- 2024
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17. Visual impact of diffusion optic technology lenses for myopia control.
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Wolffsohn JS, Hill JS, Hunt C, and Young G
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- Humans, Female, Male, Child, Adolescent, Glare, Refraction, Ocular physiology, Depth Perception physiology, Reading, Equipment Design, Myopia physiopathology, Myopia therapy, Visual Acuity physiology, Eyeglasses, Vision, Binocular physiology, Contrast Sensitivity physiology
- Abstract
Purpose: To assess the visual impact of Diffusion Optics Technology™ 0.2 DOT lenses (SightGlass Vision Inc.) designed for myopia control on primary gaze. DOT spectacle lenses contain light scattering elements that scatter light as it passes through the lens which, in turn, reduces retinal image contrast., Methods: Fifty-one children (12.2 ± 1.3, range 10-14 years; 51% females) were randomly assigned to wear DOT spectacle (n = 27) or single vision lenses (n = 24) across six investigational sites in North America. Binocular high- and low-contrast distant visual acuities, near visual acuity, reading speed, contrast sensitivity, stereoacuity and glare were assessed in primary gaze after at least 3 years of wear, with the study 95% powered in all metrics to detect significant differences between the groups., Results: Mean binocular distance high-contrast (-0.09 ± 0.02 vs. -0.08 ± 0.02 logMAR, p = 0.81), low-contrast (0.05 ± 0.02 vs. 0.07 ± 0.02 logMAR, p = 0.52) and near visual acuity with glare sources (-0.06 ± 0.03 vs. -0.09 ± 0.03 logMAR, p = 0.32) were similar for DOT and single vision lens wearers, respectively. Contrast sensitivity was similar between children wearing DOT or single vision lenses across 11 of the 16 spatial frequencies (p > 0.05). Mean stereopsis was similar (p = 0.30) with the DOT lenses (33.2 ± 12.5″) and single vision lenses (38.1 ± 14.2″). Functional reading speed metrics were similar in both study groups, as was the objectively measured head tilt during reading (p > 0.05). The mean halo radius was 0.56° ± 0.17° with the DOT lenses compared with 0.50° ± 0.12° with single vision lenses (p = 0.02), but the statistically significant difference was smaller than the non-inferiority bound of 0.4°., Conclusion: Diffusion optics technology lenses provide a clinically equivalent visual experience to a standard single vision lens., (© 2024 SightGlass Vision. Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)
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- 2024
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18. Retinal Damage and Visual Network Reconfiguration Defines Visual Function Recovery in Optic Neuritis.
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Villoslada P, Solana E, Alba-Arbalat S, Martinez-Heras E, Vivo F, Lopez-Soley E, Calvi A, Camos-Carreras A, Dotti-Boada M, Bailac RA, Martinez-Lapiscina EH, Blanco Y, Llufriu S, and Sanchez Dalmau BF
- Subjects
- Humans, Male, Female, Adult, Middle Aged, Prospective Studies, Evoked Potentials, Visual physiology, Visual Pathways physiopathology, Visual Pathways diagnostic imaging, Visual Acuity physiology, Follow-Up Studies, Magnetic Resonance Imaging, Retina physiopathology, Retina diagnostic imaging, Vision Disorders physiopathology, Vision Disorders etiology, Visual Cortex diagnostic imaging, Visual Cortex physiopathology, Optic Neuritis physiopathology, Optic Neuritis diagnostic imaging, Recovery of Function physiology, Tomography, Optical Coherence
- Abstract
Background and Objectives: Recovery of vision after acute optic neuritis (AON) is critical to improving the quality of life of people with demyelinating diseases. The objective of the study was to prospectively assess the changes in visual acuity, retinal layer thickness, and cortical visual network in patients with AON to identify the predictors of permanent visual disability., Methods: We studied a prospective cohort of 88 consecutive patients with AON with 6-month follow-up using high and low-contrast (2.5%) visual acuity, color vision, retinal thickness from optical coherence tomography, latencies and amplitudes of multifocal visual evoked potentials, mean deviation of visual fields, and diffusion-based structural (n = 53) and functional (n = 19) brain MRI to analyze the cortical visual network. The primary outcome was 2.5% low-contrast vision, and data were analyzed with mixed-effects and multivariate regression models., Results: We found that after 6 months, low-contrast vision and quality of vision remained moderately impaired. The thickness of the ganglion cell layer at baseline was a predictor of low-contrast vision 6 months later (ß = 0.49 [CI 0.11-0.88], p = 0.012). The structural cortical visual network at baseline predicted low-contrast vision, the best predictors being the betweenness of the right parahippocampal cortex (ß = -036 [CI -0.66 to 0.06], p = 0.021), the node strength of the right V3 (ß = 1.72 [CI 0.29-3.15], p = 0.02), and the clustering coefficient of the left intraparietal sulcus (ß = 57.8 [CI 12.3-103.4], p = 0.015). The functional cortical visual network at baseline also predicted low-contrast vision, the best predictors being the betweenness of the left ventral occipital cortex (ß = 8.6 [CI: 4.03-13.3], p = 0.009), the node strength of the right intraparietal sulcus (ß = -2.79 [CI: -5.1-0.4], p = 0.03), and the clustering coefficient of the left superior parietal lobule (ß = 501.5 [CI 50.8-952.2], p = 0.03)., Discussion: The assessment of the visual pathway at baseline predicts permanent vision disability after AON, indicating that damage is produced early after disease onset and that it can be used for defining vision impairment and guiding therapy.
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- 2024
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19. MACULAR THICKNESS FLUCTUATIONS AND VISUAL ACUITY OUTCOMES AFTER INTRAVITREAL DEXAMETHASONE IMPLANT FOR DIABETIC MACULAR EDEMA.
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Torres-Villaros H, Timoumi R, Fajnkuchen F, Klokner A, and Giocanti-Aurégan A
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- Humans, Retrospective Studies, Male, Female, Middle Aged, Aged, Follow-Up Studies, Macular Edema drug therapy, Macular Edema physiopathology, Macular Edema diagnosis, Macular Edema etiology, Dexamethasone administration & dosage, Visual Acuity physiology, Diabetic Retinopathy drug therapy, Diabetic Retinopathy physiopathology, Diabetic Retinopathy diagnosis, Diabetic Retinopathy complications, Drug Implants, Glucocorticoids administration & dosage, Intravitreal Injections, Tomography, Optical Coherence methods, Macula Lutea pathology, Macula Lutea diagnostic imaging
- Abstract
Purpose: To assess macular thickness fluctuations and their association with visual acuity outcomes in eyes with diabetic macular edema treated with an intravitreal dexamethasone (DEX) implant., Methods: The SD of all postbaseline central subfield thicknesses (CST) recorded over a 12-month period after the first injection of the DEX implant was used to quantify CST fluctuations. Linear regression models were used to identify factors associated with the visual acuity at 12 months (measured with the Early Treatment of Diabetic Retinopathy Study score) and predictors of CST SD., Results: A retrospective review of 80 eyes of 80 patients treated with the DEX implant for diabetic macular edema revealed a CST SD of 75.3 ± 50.3 µ m. The CST SD was negatively associated with the visual acuity at 12 months (-7.7 Early Treatment of Diabetic Retinopathy Study letters for each 100- µ m increase in CST SD, P = 0.01), while changes in CST from baseline did not show any significant association. Eyes were stratified into quartiles based on the CST SD, and a difference by -14.2 letters in visual acuity at 12 months was observed between the first and fourth quartiles ( P <0.001). Significant predictors of CST SD included the baseline visual acuity (-12.0 µ m for each 10-letter increase, P = 0.02) and the number of DEX injections received (n = 17.1, P = 0.03)., Conclusion: Greater fluctuations in retinal thickness were found to be associated with poorer visual outcomes in eyes with diabetic macular edema treated with the DEX implant. Analyzing the CST SD could be a more predictive indicator of visual prognosis than individual measurements of the CST.
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- 2024
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20. Development of a dry eye index as a new biomarker of dry eye disease.
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Gala-Núñez C, Ortiz-Peregrina S, Castanera-Gratacós D, and Anera RG
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- Humans, Cross-Sectional Studies, Female, Male, Middle Aged, Surveys and Questionnaires, Aged, Adult, Meibomian Glands metabolism, Meibomian Glands diagnostic imaging, Meibomian Glands pathology, Contrast Sensitivity physiology, Severity of Illness Index, Dry Eye Syndromes diagnosis, Dry Eye Syndromes physiopathology, Tears metabolism, Tears physiology, Visual Acuity physiology, Biomarkers
- Abstract
Purpose: To evaluate signs and symptoms in patients diagnosed with dry eye disease (DED), divided into dry eye (DE) groups, in order to find a new biomarker that allows an accurate diagnosis, management and classification of DED., Methods: This cross-sectional, observational study included 71 DED subjects. Subjective symptoms, visual quality and DE signs were assessed using the Ocular Surface Disease Index (OSDI), the Quality of Vision (QoV) questionnaire, best corrected distance visual acuity (VA), functional visual acuity (FVA), contrast sensitivity (CS), high- and low-order corneal aberrations (HOA and LOA, respectively), tear break-up time (TBUT), Meibomian Gland Dysfunction (MGD), Schirmer test, corneal staining, lid wiper epitheliopathy (LWE) and meibography. Participants were classified into three groups based on dryness severity using a cluster analysis, i.e., mild (N = 17, 55.8 ± 15.4 years), moderate (N = 41, 63.5 ± 10.6 years) and severe (N = 13, 65.0 ± 12.0). A new Dry Eye Severity Index (DESI) based on ocular surface signs has been developed and its association with symptoms, visual quality and signs was assessed. Comparisons between groups were made using Kruskal-Wallis and Chi-squared tests. Spearman correlation analysis was also performed., Results: The DESI was based on three tests for DE signs: TBUT, Schirmer test and MGD. The DESI showed significant differences between different pairs of groups: Mild Dryness versus Moderate Dryness (p < 0.001), Mild Dryness versus Severe Dryness (p < 0.001) and Moderate Dryness versus Severe Dryness (p < 0.001). The DESI was significantly correlated with age (rho = -0.30; p = 0.01), OSDI score (rho = -0.32; p = 0.007), QoV score (rho = -0.35; p = 0.003), VA (rho = -0.34; p = 0.003), FVA (rho = -0.38; p = 0.001) and CS (rho = 0.42; p < 0.001) Also, significant differences between the severity groups were found for OSDI and QoV scores, VA, FVA, CS and MGD (p < 0.05)., Conclusions: The DESI has good performance as a biomarker for the diagnosis, classification and management of DED., (© 2024 The Author(s). Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)
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- 2024
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21. Early surgical treatment of retinal haemangioblastomas: 10-year follow-up.
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van Overdam KA, Veckeneer M, Hajjaj A, Kilic E, and Verhoekx JSN
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- Humans, Follow-Up Studies, Female, Male, Adult, Visual Acuity physiology, Middle Aged, Time Factors, Ophthalmologic Surgical Procedures methods, Retrospective Studies, Retinal Neoplasms surgery, Retinal Neoplasms diagnosis, Hemangioblastoma surgery, Hemangioblastoma diagnosis
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- 2024
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22. Effect of Belin-Ambrósio deviation index on 2-year refractive outcomes of PRK.
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Shams SS, Hassanzadeh S, Zarei-Ghanavati M, Ravanshad Y, Sadeghi J, Ziaei M, and Zarei-Ghanavati S
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- Humans, Adult, Prospective Studies, Middle Aged, Male, Female, Young Adult, Follow-Up Studies, Corneal Topography, Treatment Outcome, Cornea surgery, Cornea physiopathology, Cornea pathology, Photorefractive Keratectomy methods, Visual Acuity physiology, Refraction, Ocular physiology, Myopia surgery, Myopia physiopathology, Lasers, Excimer therapeutic use
- Abstract
Purpose: To assess the effect of preoperative Belin-Ambrósio deviation (BAD-D) index on 2-year visual, refractive, and tomographic outcomes, as well as the efficacy and safety of photorefractive keratectomy (PRK) surgery., Setting: Eye clinic, Mashhad, Iran., Design: Prospective cohort study., Methods: This study included 66 patients (66 eyes) who underwent PRK surgery, with a minimum follow-up period of 2 years. Participants were divided into 2 groups: preoperative BAD-D ≥1.60 (high BAD-D) and preoperative BAD-D <1.60 (low BAD-D). Preoperative and postoperative visual, refractive, and tomographic parameters were evaluated, and the efficacy and safety of the procedure were compared between groups., Results: 66 patients with a mean age of 35.50 ± 8.21 years (range 22 to 55 years) were included. Postoperatively, the mean spherical equivalent (SE) of refractive error was +0.32 ± 0.65 diopters (D) in the high BAD-D group and +0.18 ± 0.66 D in the low BAD-D group ( P = .40). In addition, at 2 years of follow-up, the mean uncorrected distance visual acuity was 0.98 ± 0.07 in the high BAD-D group and 0.97 ± 0.08 in the low BAD-D group ( P = .905). Among the postoperative tomographic parameters, front elevation thickness, maximum Ambrósio relational thickness, astigmatism, and central corneal thickness were significantly different between the 2 groups (all, P < .05). At the 2-year follow-up, the mean Safety Index was 1.02 ± 0.04, and 1.01 ± 0.04 in high and low BAD-D groups, respectively ( P = .37), and the mean Efficacy Index was 0.99 ± 0.07 and 0.98 ± 0.06 in high and low BAD-D groups, respectively ( P = .40)., Conclusions: The preoperative BAD-D index does not predict postoperative visual, refractive, and tomographic outcomes in patients with low-to-moderate myopia. However, in patients with normal preoperative BAD-D values, higher agreement was expected between the attempted and achieved SE., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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23. Corneal sensitivity and ocular surface health in patients undergoing femtosecond LASIK retreatment for residual refraction.
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Cinar E, Yuce B, and Aslan F
- Subjects
- Humans, Prospective Studies, Male, Female, Adult, Tears physiology, Reoperation, Visual Acuity physiology, Young Adult, Astigmatism physiopathology, Astigmatism surgery, Middle Aged, Keratomileusis, Laser In Situ methods, Cornea surgery, Cornea physiopathology, Myopia surgery, Myopia physiopathology, Refraction, Ocular physiology, Lasers, Excimer therapeutic use
- Abstract
Purpose: To assess corneal sensitivity and the ocular surface in patients undergoing primary femtosecond laser in situ keratomileusis (FS-LASIK) and those undergoing FS-LASIK retreatment under the same flap due to residual refractive error., Setting: Ekol Eye Hospital, Izmir, Turkey., Design: Prospective case series., Methods: 19 patients with previous FS-LASIK who had myopic and astigmatic refractive error were included in the study group, and 19 age-matched and sex-matched patients undergoing FS-LASIK for the first time as the control group. Corneal sensitivity, Schirmer test, tear film break-up time (TBUT), Oxford grading scheme for ocular surface staining, and Ocular Surface Disease Index (OSDI) were measured preoperatively and at postoperative 1 week and 1, 3, and 6 months., Results: The mean refractive correction in the study and control groups, respectively, was 2.18 ± 0.78 diopters (D) (range: 1.00 to 3.50) and 2.76 ± 1.20 D (range: 1.00 to 4.50; P = .07). Corneal esthesiometry results in the study and control groups, respectively, were 6.10 ± 12.55 vs 9.90 ± 11.50 mm at 1 week ( P = .001), 41.95 ± 6.98 vs 45.09 ± 5.88 mm at 1 month ( P = .004), 56.09 ± 3.37 vs 56.19 ± 2.52 mm at 3 months ( P = .8), and 58.60 ± 2.01 vs 58.80 ± 1.39 mm at 6 months ( P = .5). Significant difference between the 2 groups in Schirmer test score that disappeared at postoperative 3 months and in TBUT and ocular surface staining that disappeared at 6 months, whereas the statistically significant difference in OSDI score persisted at 6 months ( P = .03) was detected., Conclusions: Corneal surface sensitivity and ocular surface health are more impaired in patients undergoing FS-LASIK retreatment due to residual refractive error., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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24. Ophthalmologic Symptoms in a Patient With Autosomal Dominant Multicentric Carpotarsal Osteolysis.
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Nijs J, Debeuf V, Van Eijgen J, and Delbeke H
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- Humans, Female, Adult, Slit Lamp Microscopy, Osteolysis diagnosis, Visual Acuity physiology, Corneal Opacity diagnosis
- Abstract
Purpose: The purpose of this case report was to provide a detailed description of the ocular manifestations, in a patient with multicentric carpotarsal osteolysis (MCTO), with particular emphasis on bilateral corneal opacities., Methods: A 43-year-old woman with a history of MCTO was followed with visual acuity assessment and slit-lamp examination at the Department of Ophthalmology in the University Hospitals of Leuven., Results: The patient was found to have bilateral subepithelial haze, along with anterior stromal corneal opacities, and small central lens opacities upon examination. There was a slight corneal thickening. A progression of the corneal opacities was observed, without a further drop in visual acuity., Conclusions: This case report shows a rare association between MCTO and corneal opacities in adulthood. Interdisciplinary care involving an ophthalmologist is beneficiary for patients with MCTO., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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25. Discriminant prediction equation using an optical biometer for identifying postmyopic laser vision correction eyes.
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Nishida T, Kojima T, Isogai N, Yoshida Y, and Nakamura T
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- Humans, Retrospective Studies, Male, Female, Middle Aged, Aged, ROC Curve, Keratomileusis, Laser In Situ methods, Visual Acuity physiology, Lasers, Excimer therapeutic use, Tomography, Optical Coherence methods, Cornea surgery, Cornea diagnostic imaging, Cornea pathology, Biometry methods, Myopia surgery, Myopia physiopathology
- Abstract
Purpose: To create an equation for identifying postmyopic laser vision correction (M-LVC) eyes by using corneal shape parameters in a swept-source optical coherence tomography (SS-OCT) biometer and verify its accuracy., Setting: Nagoya Eye Clinic, Nagoya, Japan., Design: Retrospective evaluation of a screening approach., Methods: Control participants were selected retrospectively from patients who visited the clinic for cataract surgery or refractive surgery. M-LVC patients were selected retrospectively from patients who visited the clinic for cataract surgery or M-LVC postoperative checkups. The control and post-M-LVC patients with keratometric values between 39 diopters (D) and 43 D were included in the final analysis. Patients were randomly assigned to equation-creation and validation groups in a 2:1 ratio. To discriminate post-M-LVC patients from control participants, multiple logistic regression analysis was performed with the corneal shape parameters from the optical biometer as independent variables., Results: The M-LVC and control groups consisted of 90 eyes from 90 patients and 97 eyes from 97 patients, respectively. The average keratometry (Ave-K) values did not differ significantly between the control and M-LVC groups ( P = .187). The multiple logistic analysis identified the asymmetry component (regression coefficient, 5.357; odds ratio, 212.158) and corneal eccentricity index (regression coefficient, -5.088; odds ratio, 0.006) as explanatory variables. The area under the receiver operating characteristic curve in the predictive equation-creation group was 0.946. The sensitivity and specificity in the validation group were 93.3% and 87.5%, respectively., Conclusions: The M-LVC discriminant prediction equation with the topography-equipped SS-OCT biometer was effective in detecting post-M-LVC eyes with high accuracy., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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26. Systemic and Bilateral Severe Ocular Toxoplasmosis Resembling Autoimmune Phenomena: A Case Report.
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Romero-Santos S, Parra-Tanoux D, Cifuentes-González C, Muñoz-Ortiz J, Mejía-Salgado G, and de-la-Torre A
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- Humans, Male, Adult, Diagnosis, Differential, Aqueous Humor parasitology, Visual Acuity physiology, DNA, Protozoan analysis, Glucocorticoids therapeutic use, Lupus Erythematosus, Systemic diagnosis, Lupus Erythematosus, Systemic complications, Lupus Erythematosus, Systemic drug therapy, Eye Infections, Parasitic diagnosis, Eye Infections, Parasitic drug therapy, Eye Infections, Parasitic parasitology, Antiphospholipid Syndrome diagnosis, Antiphospholipid Syndrome drug therapy, Antiphospholipid Syndrome complications, Polymerase Chain Reaction, Toxoplasmosis, Ocular diagnosis, Toxoplasmosis, Ocular drug therapy, Toxoplasma immunology, Toxoplasma isolation & purification, Autoimmune Diseases diagnosis, Autoimmune Diseases drug therapy, Autoimmune Diseases immunology
- Abstract
Purpose: To present an atypical case of severe bilateral ocular toxoplasmosis with systemic involvement that initially mimicked an autoimmune etiology, posing challenges to its diagnosis and treatment., Case Report: A 39-year-old immunocompetent male was admitted to the hospital due to a presumed pulmonary thromboembolism concomitant with an abrupt onset of vision loss. Initial differential diagnoses included antiphospholipid syndrome and systemic lupus erythematosus, prompting the administration of corticosteroid pulses and rituximab. Despite observing a partial systemic response, there was no improvement in visual acuity. Subsequent aqueous humor polymerase chain reaction confirmed Toxoplasma gondii infection, leading to the introduction of oral antibiotic therapy. The patient's condition showed a partially favorable response; however, the treatment could not reverse the permanent retinal damage., Conclusion and Importance: This case underscores the importance of ruling out an infectious etiology in all cases of uveitis. Additionally, it alerts clinicians to the possibility that elevated positive autoantibodies may result from a severe inflammatory reaction caused by pathogens rather than an autoimmune or autoinflammatory disease, particularly in instances of poor treatment response or atypical clinical presentation.
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- 2024
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27. Long-Term Clinical Outcomes of the 0.18 Mg Fluocinolone Acetonide Intravitreal Implant Following Local Corticosteroid Burst in Noninfectious Uveitis.
- Author
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Janetos TM, Koreishi A, and Goldstein DA
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- Humans, Retrospective Studies, Female, Male, Middle Aged, Follow-Up Studies, Treatment Outcome, Adult, Aged, Intravitreal Injections, Time Factors, Tomography, Optical Coherence, Macular Edema drug therapy, Macular Edema etiology, Macular Edema physiopathology, Fluocinolone Acetonide administration & dosage, Drug Implants, Visual Acuity physiology, Glucocorticoids administration & dosage, Uveitis drug therapy, Uveitis physiopathology, Uveitis diagnosis
- Abstract
Purpose: The 0.18 mg fluocinolone acetonide implant (FAi) is marketed for up to 36 months for treatment of noninfectious uveitis. An additional short-term corticosteroid burst prior to the 0.18 mg FAi, followed by attempt at long-term inflammation control with the 0.18 mg FAi may be beneficial given the low dose of the implant. We retrospectively reviewed all patients undergoing this treatment approach at our institution to determine its efficacy., Methods: Patients who received a corticosteroid burst followed by the 0.18 mg FAi with at least 6-month follow-up post 0.18 mg FAi were included. The primary outcome, treatment escalation (defined as worsening inflammation requiring escalation of therapy), was modeled using Kaplan-Meier analysis. Secondary outcomes included cystoid macular edema (CME), central macular thickness, retinal vasculitis, visual acuity, anterior chamber and vitreous cell, use of systemic therapy, use of corticosteroid drops, IOP, number of IOP lowering medications, need for glaucoma surgery, need for cataract surgery, and additional local corticosteroids., Results: 32 eyes were included (mean follow-up: 19.8 months). Prior to corticosteroid burst, 37.5% were on systemic therapy, 53% had CME, and 25% had retinal vasculitis. At FAi visit, CME had decreased to 18.8%. Mean time to treatment escalation after FAi was 20.3 months (95% CI 14.8-25.7 months). No patient discontinued systemic therapy and on average 15.0% of eyes required additional local corticosteroids at each follow-up interval., Conclusions: This treatment approach demonstrates that the 0.18 mg FAi is a useful adjuvant for the treatment of noninfectious uveitis but may not be adequate as solo therapy.
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- 2024
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28. Descemet Membrane Endothelial Keratoplasty in Aphakic, Aniridic, and Vitrectomized Eyes: A Review.
- Author
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Romano D, Shimizu T, Kobayashi A, Yamagami S, Romano V, and Hayashi T
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- Humans, Corneal Diseases surgery, Endothelium, Corneal pathology, Aphakia, Postcataract surgery, Aphakia, Postcataract physiopathology, Corneal Endothelial Cell Loss, Descemet Stripping Endothelial Keratoplasty methods, Vitrectomy methods, Visual Acuity physiology, Aniridia surgery
- Abstract
Purpose: The aim of this review is to examine the techniques, complications, and outcomes of Descemet membrane endothelial keratoplasty (DMEK) in aphakic, aniridic, and vitrectomized eyes., Methods: A literature search was conducted in the MEDLINE database (via PubMed), using as keywords "(DMEK) AND (aphakia OR aniridia OR vitrectomy OR vitrectomized)." The research was limited to 10 years (January 2014-March 2024), in view of lack of literature before 2014. Articles, including case reports and case series, were included., Results: Twenty articles were included. No randomized controlled trials were found nor comparative studies with more than 1 technique used. Mean rebubbling rate in complex eyes was 29%, whereas mean endothelial cell loss at 6 months was 37%. The mean postoperative visual acuity improved from 1.47 logarithm of the minimal angle of resolution to 0.7 logarithm of the minimal angle of resolution., Conclusions: Despite being more challenging, compared with the techniques reported in literature, DMEK can be considered a valid option for the management of endothelial decompensation in complex eyes, with rebubbling rate and endothelial cell loss at 6 months, which are similar to non-complex eyes., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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29. Reverse 4-Flanged Technique for Intrascleral Fixation of a Foldable Hydrophobic Intraocular Lens in the Absence of Capsular Support Through a 2.2-mm Corneal Incision.
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Romero-Valero D and Martínez Toldos JJ
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- Humans, Female, Male, Aged, Middle Aged, Sutures, Follow-Up Studies, Polypropylenes, Sutureless Surgical Procedures methods, Adult, Aphakia, Postcataract surgery, Aphakia, Postcataract physiopathology, Aged, 80 and over, Retrospective Studies, Lens Capsule, Crystalline surgery, Lens Implantation, Intraocular methods, Visual Acuity physiology, Sclera surgery, Lenses, Intraocular, Suture Techniques, Cornea surgery
- Abstract
Purpose: The purpose of this study was to describe a modified technique for sutureless intrascleral intraocular lens fixation in patients without capsular support: the reverse 4-flanged technique., Methods: A 2.2-mm corneal incision was made for aphakic patients. The 6-0 polypropylene sutures were threaded through a 30-gauge needle outside the eye. An MDJ injector was employed to insert the intraocular lens into the eye. A suture-needle snare with 7-0 polypropylene was used to exteriorize the superior end of the sutures through the sclerotomy. The 6-0 polypropylene was heated with a cautery to create the flanges., Results: Nine eyes of nine patients underwent the reverse 4-flanged technique. The median follow-up time was 182 days (range 174-195). Best-corrected distance visual acuity improved from 20/400 [hand movement-20/33] to 20/120 [20/400-20/21]. No vitreous hemorrhage, retinal detachment, endophthalmitis, intraocular lens luxation, or flange exposure was recorded during the follow-up., Conclusion: The reverse 4-flanged technique maintains the advantages of the original 4-flanged technique in terms of intraocular lens stability while reducing the incision size and surgical maneuvers performed inside the eye. This modification promises to be a reliable, safe, and relatively simple technique to correct aphakia in the absence of capsular support.
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- 2024
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30. Blood Whispers: Exploring Hematologic Indicators for Diagnosing and Predicting Severity of Vogt-Koyanagi-Harada Syndrome.
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Yargi-Ozkocak B, Altan C, Kemer-Atik B, Basarir B, and Taskapili M
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- Humans, Female, Male, Adult, Middle Aged, Young Adult, Coloring Agents, Neutrophils pathology, Lymphocytes pathology, Monocytes, Fundus Oculi, Adolescent, Blood Cell Count, Uveomeningoencephalitic Syndrome diagnosis, Uveomeningoencephalitic Syndrome blood, Tomography, Optical Coherence methods, Fluorescein Angiography methods, Visual Acuity physiology, Severity of Illness Index, Biomarkers blood, Indocyanine Green administration & dosage
- Abstract
Purpose: To investigate the association of clinical findings and indocyanine green angiography (ICGA) score with inflammatory markers derived from complete blood count (CBC) parameters in patients with Vogt-Koyanagi-Harada (VKH) to determine the diagnostic and predictive role., Methods: Demographic characteristics, presenting complaints, ocular findings, optical coherence tomography findings, ICGA scores and best corrected visual acuity were recorded in treatment-naive VKH patients at presentation. Patients were divided into two groups as acute stage and chronic recurrent stage. CBC parameters were noted in patients at presentation and healthy controls (HC, n = 25). Neutrophil-lymphocyte-platelet-monocyte counts, neutrophil/lymphocyte (NLR), platelet/lymphocyte (PLR), monocyte/lymphocyte and systemic immune-inflammation index (SII) were recorded. The association between these markers and clinical severity were evaluated., Results: Thirty-two patients with VKH (23 females/9 males) with a mean age of 34.1 ± 14.6 years were included in the study. There was an increase in neutrophil count, NLR and SII in patients with VKH compared to HC ( p < 0.001). The cut-off values for these three parameters were 4.37, 2.24 and 562.35, respectively. Twenty-six patients presented in the acute stage and six patients presented in the chronic recurrent stage. Choroidal thickness, early stromal hyperfluorescence and total ICGA scores were higher in patients presenting in the acute stage ( p < 0.001, 0.001 and 0.025, respectively). Patients with higher disease severity at presentation were treated earlier. Early stromal vessel hyperfluorescence and choroidal vasculitis scores were correlated with decreased lymphocyte count, increased NLR, PLR and SII ( p < 0.05)., Conclusion: CBC-derived inflammatory parameters indicate that VKH is a systemic inflammation. These parameters can be used in the diagnosis and determination of disease severity of VKH.
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- 2024
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31. "Analysis of Macular Pigment Optical Density in Childhood: A Systematic Review".
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Ponce-García V, Bautista-Llamas MJ, and García-Romera MC
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- Humans, Child, Child, Preschool, Visual Acuity physiology, Infant, Lutein metabolism, Zeaxanthins metabolism, Macula Lutea metabolism, Cognition physiology, Adolescent, Infant, Newborn, Macular Pigment metabolism
- Abstract
Purpose: This systematic review studies the relationship between Macular Pigment Optical Density (MPOD) values and cognitive and visual function in childhood., Methods: It included cross-sectional, observational studies or controlled clinical trials in humans between 0 and 18 years of age, analyzing MPOD values in 3 main databases: PubMed, Scopus and Web of Science. The study was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement recommendations., Results: Thirteen studies were included in this systematic review. The relationship of cognitive function, visual function and diverse variables with MPOD was analyzed in 4, 4 and 5 studies, respectively. The age of the participants ranged between premature infants to 12 years. Most of the studies used Heterochromatic Flicker Photometry (HFP) with macular densitometer to obtain MPOD values. MPOD values ranged between 0 (undetectable) to 0.66 ± 0.03 d.u. Only 4 articles studied the relationship between MPOD values and dietary intake of lutein and zeaxanthin using questionnaires about diet., Conclusions: Lutein and zeaxanthin accumulation plays an important role during the maturational stage and childhood development. Although cognitive function is more strongly correlated with MPOD values, the relationship with visual function remains unclear, and further studies are required to support this relationship.
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- 2024
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32. Progression Patterns and Risk Factors of Axial Elongation in Young Adults With Nonpathologic High Myopia: Three-Year Large Longitudinal Cohort Follow-Up.
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Kong K, Jiang J, Wang P, Song Y, Lin F, Li F, Gao X, Liu X, Jin L, Wang Z, Liu Y, Chen M, Ohno-Matsui K, Jonas JB, Chen S, and Zhang X
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- Humans, Risk Factors, Female, Adult, Male, Prospective Studies, Follow-Up Studies, Young Adult, Adolescent, Middle Aged, Refraction, Ocular physiology, Visual Acuity physiology, Axial Length, Eye pathology, Disease Progression, Myopia, Degenerative physiopathology, Myopia, Degenerative diagnosis
- Abstract
Purpose: To investigate the progression patterns and risk factors of axial elongation in young adults with nonpathologic high myopia., Design: Prospective, clinical observational cohort study with 2- to 4-year follow-up., Methods: A total of 1043 eyes of 563 participants (3515 medical records) aged 18 to 50 years with nonpathologic high myopia (axial length [AL] ≥ 26 mm; myopic maculopathy < diffuse chorioretinal atrophy; without posterior staphyloma) were included from 1546 participants (6318 medical records). Annual axial elongation was calculated via linear mixed-effect models. The associated risk factors of axial elongation were determined by ordinal logistic regression analysis, with generalized estimate equations for eliminating an interocular correlation bias., Results: Based on 5359 times of AL measurements, the annual axial elongation of participants (mean [SD] age 31.39 [9.22] years) was 0.03 mm/year (95% confidence interval [CI], 0.03-0.04; P < .001) during a 30.23 (6.06) months' follow-up. Severe (>0.1 mm/year), moderate (0.05-0.09 mm/year), mild (0-0.049 mm/year), and nil (≤0 mm/year) elongation was observed in 122 (11.7%), 211 (20.2%), 417 (40.0%), and 293 (28.1%) eyes. The following risk factors were significantly associated with axial elongation: baseline AL ≥ 28 mm (odds ratio [OR], 4.23; 95% CI, 2.95-6.06; P < .001); age < 40 years (OR, 1.64; 95% CI, 1.18-2.28; P = .003); axial asymmetry (OR, 2.04; 95% CI, 1.26-3.29; P = .003), and women (OR, 1.52; 95% CI, 1.13-2.2.05; P = .006). Using antiglaucoma medications was a protective factor (OR, 0.46; 95% CI, 0.27-0.79; P = .005), which slowed 75% of axial elongation from 0.04 (0.06) to 0.01 (0.06) mm/y (P < .001)., Conclusions: Axial elongation continued in young adults with nonpathologic myopia. Risk factors included longer baseline AL and axial asymmetry, younger age, and woman. Topical use of antiglaucoma medications may be useful to reduce ongoing axial elongation., (Copyright © 2024 Elsevier Inc. All rights reserved.)
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- 2024
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33. Surgical Outcomes in Uveitic Glaucoma: Long-Term Evaluation of Trabeculectomy, Non-Penetrating Deep Sclerectomy, Ex-PRESS Shunt and Ahmed Glaucoma Valve. A 3-Year Follow-Up Study.
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Aragón-Roca D, Oliver-Gutierrez D, Banderas García S, Rigo J, Dou A, and Castany M
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- Humans, Female, Male, Retrospective Studies, Follow-Up Studies, Adult, Middle Aged, Treatment Outcome, Aged, Young Adult, Adolescent, Time Factors, Tonometry, Ocular, Glaucoma Drainage Implants, Intraocular Pressure physiology, Uveitis surgery, Uveitis complications, Uveitis physiopathology, Trabeculectomy methods, Sclerostomy methods, Glaucoma surgery, Glaucoma physiopathology, Visual Acuity physiology
- Abstract
Purpose: Uveitis can lead to secondary glaucoma, a condition with challenging management that can carry irreversible visual loss. Filtering surgery has demonstrated a higher failure rate, increased incidence of postoperative complications and reinterventions in uveitic patients. There is no consensus on the optimal surgical approach for uveitic glaucoma (UG) due to limited data comparing various intraocular pressure (IOP)-lowering surgeries. This retrospective cohort aims to assess the clinical outcomes of trabeculectomy (TBT), non-penetrating deep sclerectomy (NPDS), Ex-PRESS shunt and Ahmed glaucoma valve, providing additional insights into the long-term IOP control and safety of filtering surgeries in UG., Methods: The filtering surgery was performed on 32 eyes of 27 UG patients. Complete success was defined as IOP ≤ 18 mmHg or a 30% reduction. Qualified success allowed topical hypotensive treatment., Results: Complete success was 40.63% (13/32) at 12 months and 36.67% (11/30) at 36 months. Qualified success was 84.38% (27/32) at 12 months and 63.33% (19/30) at 36 months. In the survival analysis, both NPDS and Ex-PRESS demonstrated decreased failure rates compared to TBT (NPDS vs TBT: HR = 0.20, p = 0.049; Ex-PRESS vs TBT: HR = 0.28, p = 0.13). One or more reinterventions were required in 34.38% (11/32) of the eyes. NPDS had the lowest incidence of hypotony. Secondary cataract was a common complication in all groups., Conclusion: Various filtering surgeries are safe and effective procedures for lowering IOP and reducing the requirement of topical antihypertensives in UG at 36 months. However, one-third of the patients will require another IOP-lowering procedure.
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- 2024
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34. Altered Corneal Biomechanics According to the Biomechanical E-Staging in Pellucid Marginal Degeneration.
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Mergen B, Sideroudi H, Seitz B, and Flockerzi E
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- Humans, Female, Male, Middle Aged, Biomechanical Phenomena physiology, Adult, Aged, Visual Acuity physiology, Corneal Dystrophies, Hereditary physiopathology, Cornea physiopathology, Cornea pathology, Corneal Topography, Intraocular Pressure physiology, Elasticity physiology
- Abstract
Purpose: The purpose of this study was to investigate corneal biomechanics in pellucid marginal degeneration (PMD) compared with healthy controls using Corvis ST (Oculus, Germany) by using the new biomechanical E-staging (based on the Corvis Biomechanical Factor, the linearized Corvis Biomechanical Index) together with tomographic parameters., Methods: Corneal biomechanical and topographic data of 75 eyes of 75 patients with PMD and 75 eyes of 75 age-matched and sex-matched healthy controls were investigated. Topographic parameters (K1, K2, Kmax, central corneal thickness (CCT), and Belin/Ambrósio Deviation Index (BAD-D) were evaluated in dependence of and correlated with the biomechanically defined E-stages. Biomechanical parameters were also recorded for the 2 groups., Results: Patients with PMD showed higher K2, Kmax, BAD-D, and Corvis Biomechanical Factor values and a lower CCT compared with healthy controls ( P < 0.001). The E-stage was positively correlated with K1, K2, Kmax, BAD-D, and intraocular pressure difference and negatively correlated with CCT. Stage-dependent analysis revealed a significant increase in K1, K2, Kmax ( P < 0.001), and BAD-D ( P = 0.041) in stage E3 compared with E0 and a significant decrease in stage E2 in CCT ( P = 0.009) compared with E0., Conclusions: This study showed that patients with PMD may have a reduced corneal stiffness compared with healthy controls which worsens with increasing E-stage. Significant changes in topographic parameters were observed at stage E2 for CCT and at stage E3 for K1, K2, Kmax, and BAD-D when compared with stage E0., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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35. Descemet Membrane Endothelial Keratoplasty: 10-Year Cell Loss and Failure Rate Compared With Descemet Stripping Endothelial Keratoplasty and Penetrating Keratoplasty.
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Price MO, Kanapka L, Kollman C, Lass JH, and Price FW Jr
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- Humans, Retrospective Studies, Male, Aged, Female, Middle Aged, Cell Count, Visual Acuity physiology, Aged, 80 and over, Follow-Up Studies, Corneal Edema surgery, Adult, Descemet Stripping Endothelial Keratoplasty methods, Keratoplasty, Penetrating, Corneal Endothelial Cell Loss, Fuchs' Endothelial Dystrophy surgery, Graft Rejection, Endothelium, Corneal pathology, Graft Survival physiology
- Abstract
Purpose: The aim of this study was to assess long-term endothelial cell loss (ECL) and graft failure with Descemet membrane endothelial keratoplasty (DMEK) and Descemet stripping endothelial keratoplasty (DSEK) versus penetrating keratoplasty (PK) performed for the same indications (primarily Fuchs dystrophy and pseudophakic corneal edema) in the Cornea Donor Study., Methods: This retrospective study included consecutive primary DMEK (529 recipients, 739 eyes) and DSEK cases (585 recipients, 748 eyes) with 1 or more endothelial cell density (ECD) measurements at 6 months to 16 years. Main outcomes were ECD, longitudinal ECL, and graft failure., Results: Between 6 months and 8 years the ECD declined linearly by approximately 118 cells/mm 2 /yr after DMEK and 112 cells/mm 2 /yr after DSEK. Beyond 8 years postoperatively the rate of decline slowed substantially. Selective dropout from graft failure did not significantly affect the ECD trend. At 10 years, median ECL (interquartile range) was 63% (45, 73) with DMEK, 68% (48, 78) with DSEK, and 76% (70, 82) with PK ( P = 0.01 DMEK vs. DSEK, P <0.001 DMEK vs. PK, and P < 0.001 DSEK vs. PK). The proportion of surviving grafts with 10-year ECD <500 cells/mm 2 was 1.4% with DMEK, 7.3% with DSEK, and 23.9% with PK. The cumulative risk of graft failure between 6 months and 10 years was 5% with DMEK, 11% with DSEK, and 19% with PK ( P < 0.001)., Conclusions: Compared with PK and DSEK, DMEK had significantly lower ECL and significantly lower risk of secondary graft failure through 10 years., (Copyright © 2023 The Author(s). Published by Wolters Kluwer Health, Inc.)
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- 2024
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36. Ocular dominance shift in refractive cataract surgery: prospective, observational study.
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Song T, Nie F, Zhao Y, Liao M, He L, Tang Q, and Duan X
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- Humans, Prospective Studies, Male, Female, Middle Aged, Aged, Phacoemulsification, Astigmatism physiopathology, Cataract physiopathology, Cataract complications, Cataract Extraction, Pseudophakia physiopathology, Surveys and Questionnaires, Aged, 80 and over, Visual Acuity physiology, Dominance, Ocular physiology, Refraction, Ocular physiology, Lens Implantation, Intraocular
- Abstract
Purpose: To explore the features of the dominant and nondominant eyes in patients with cataracts and predict ocular dominance shift (ODS) based on preoperative indicators., Setting: Changsha Aier Eye Hospital, Changsha, Hunan, China., Design: Prospective, observational study., Methods: Patients with age-related cataracts who underwent unilateral cataract surgery were enrolled in this study. Before the procedure, uncorrected distance visual acuity (UDVA) was assessed and noncycloplegic subjective refraction evaluations were conducted to determine corrected distance visual acuity. Total astigmatism, corneal astigmatism, and intraocular astigmatism were measured using OPD-Scan III. Cataract type was assessed using slitlamp biomicroscopy based on the Lens Opacities Classification System III. Ocular dominance (OD) was determined under corrected conditions using the hole-in-card test. Follow-up visits occurred at 1 day, 1 week, and 1 month postoperatively. After 1 month, OD was re-evaluated, and participants completed the 9-item Short-Form Cataract Questionnaire., Results: 94 patients (188 eyes) were enrolled in the study. The analysis showed that the ODS rate of unilateral cataract surgery was 40.4%. In addition, age, UDVA of the nondominant eye, posterior subcapsular cataract, and total astigmatism were risk factors for ODS. No difference in vision-related quality of life was detected between patients who had ODS and those who did not., Conclusions: Several preoperative parameters as potential risk factors of ODS after cataract surgery were identified. These findings provide guidance for predicting changes in the dominant eye and may improve the precise selection of intraocular lenses and implementation of monovision strategies., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of ASCRS and ESCRS.)
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- 2024
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37. Childhood-Onset Non-Infectious Uveitis in the "Biologic Era". Results From Spanish Multicenter Multidisciplinary Real-World Clinical Settings.
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Mesa-Del-Castillo P, Yago Ugarte I, Bolarín JM, Martínez D, López Montesinos B, Barranco González H, Calvo Penadés I, Lacruz Pérez L, Clemente D, Robledillo JC, Valls Ferrán I, Bravo Mancheño B, Rubio Plats M, Martín Pedraz L, Alba Linero C, Sevilla-Pérez B, García-Serrano JL, Mir-Perelló MC, Druetta N, Souto A, Lopez-Lopez F, Zarallo-Reales C, Jerez Fidalgo M, Solana Fajardo J, Palmou Fontana N, Demetrio Pablo R, Pinedo MC, Fonollosa A, Jovani Casano V, Mondejar García JJ, Brandy A, García López A, Esteban-Ortega M, Reinoso T, Calzada-Hernández J, Llorca Cardeñosa A, Gavilán Martín C, Mengual Verdú E, Martínez Vidal MP, Quilis Martí N, Alvarado MC, De Inocencio J, Alonso-Martín B, Recuero-Diaz S, Carreño E, Nieto González JC, Ibares L, Rosas Gómez de Salazar J, and Sánchez Sevila JL
- Subjects
- Humans, Female, Male, Retrospective Studies, Child, Adolescent, Spain epidemiology, Child, Preschool, Age of Onset, Visual Acuity physiology, Registries, Antirheumatic Agents therapeutic use, Arthritis, Juvenile drug therapy, Arthritis, Juvenile complications, Biological Products therapeutic use, Infant, Uveitis drug therapy, Uveitis diagnosis
- Abstract
Objective: To characterize and describe clinical experience with childhood-onset non-infectious uveitis., Study Design: A multicenter retrospective multidisciplinary national web-based registry of 507 patients from 21 hospitals was analyzed. Cases were grouped as immune disease-associated (IMDu), idiopathic (IDIu) or ophthalmologically distinct. Characteristics of juvenile idiopathic arthritis-associated (non-HLA-B27-related) uveitis (JIAu), IDIu, and pars planitis (PP) were compared., Results: IMDu (62.3%) and JIAu (51.9%) predominated in young females; and IDIu (22.7%) and PP (13.6%) in older children, without sex imbalance. Ocular complications occurred in 45.3% of cases (posterior synechiae [28%], cataracts [16%], band keratopathy [14%], ocular hypertension [11%] and cystoid macular edema [10%]) and were associated with synthetic (86%) and biologic (65%) disease-modifying antirheumatic drug (DMARD) use. Subgroups were significantly associated ( p < 0.05) with different characteristics. JIAu was typically anterior (98%), insidious (75%), in ANA-positive (69%), young females (82%) with fewer complications (31%), better visual outcomes, and later use of uveitis-effective biologics. In contrast, IDIu was characteristically anterior (87%) or panuveitic (12.1%), with acute onset (60%) and more complications at onset (59%: synechiae [31%] and cataracts [9.6%]) and less DMARD use, while PP is intermediate, and was mostly bilateral (72.5%), persistent (86.5%) and chronic (86.8%), with more complications (70%; mainly posterior segment and cataracts at last visit), impaired visual acuity at onset, and greater systemic (81.2%), subtenon (29.1%) and intravitreal (10.1%) steroid use., Conclusion: Prognosis of childhood uveitis has improved in the "biologic era," particularly in JIAu. Early referral and DMARD therapy may reduce steroid use and improve outcomes, especially in PP and IDIu.
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- 2024
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38. Paracentral Acute Middle Maculopathy and Risk of Cardiovascular Disease, Stroke, and Death: A Longitudinal Study.
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Limoli C, Raja LD, Wagner SK, Patel PJ, Nicholson L, Bolz M, Vujosevic S, Nucci P, Keane PA, Khalid H, and Huemer J
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- Humans, Female, Male, Retrospective Studies, Middle Aged, Adult, Risk Factors, Acute Disease, Aged, Visual Acuity physiology, Follow-Up Studies, Cause of Death, White Dot Syndromes, Fluorescein Angiography, Cardiovascular Diseases diagnosis, Tomography, Optical Coherence, Stroke
- Abstract
Purpose: To evaluate the risk of acute cardiovascular events (CVE), including cardiovascular diseases, cerebrovascular diseases, and all-cause mortality in patients with paracentral acute middle maculopathy (PAMM)., Design: Retrospective cohort study., Methods: We studied 43 individuals with optical coherence tomography-documented PAMM attending Moorfields Eye Hospital between January 2014 and June 2021. We excluded patients with preceding (<2 years) major adverse cardiac events. We stratified patients by age (<50 and ≥50 years) and whether associated with retinal vascular diseases (RVD) or isolated (iPAMM). We assessed risk factors, clinical characteristics, and visual prognosis of the patients. CVE risk was estimated using Kaplan-Meier curves, the log-rank test, and Cox proportional hazards regression., Results: In young patients with iPAMM patients (n = 12), underlying predisposing factors included six (50%) sickle cell disease and five (41.6%) others, including breakthrough bleeding in pregnancy, migraine, genetic cardiomyopathy, amphetamine use; among those with PAMM + RVD (n = 12) one (9%) had a vascular disorder, and four (44.4%) oral contraceptive use. In the older group of 20 patients, 15 (75%) had at least one coronary risk factor. During a median follow-up of 14 months (range 12-54), older subjects with iPAMM had a higher risk of developing CVE than those with PAMM + RVD (P < .001). Notably, iPAMM displayed a significantly earlier peak in peri-PAMM CVE risk compared to PAMM + RVD (median: one month, range 1-40 months vs 36 months, range 12-54 months). Relative to those with PAMM + RVD, risk of CVE was significantly higher in patients with iPAMM, adjusted for age and sex (hazard ratio: 6.37, 95% confidence interval 1.68-24.14, P = .017). No young patients experienced adverse CVE. At baseline, older iPAMM patients mean best corrected visual acuity of 0.7 (0-1.8) logarithm of the minimum angle resolution, which improved significantly to 0.2 (0-1.30) logarithm of the minimum angle resolution at the latest visit (P = .033)., Conclusions: Young individuals with iPAMM have a higher prevalence of predisposing factors compared to those presenting with combined PAMM + RVD. Older patients with iPAMM had a higher risk of CVE than those with PAMM + RVD, especially in the peri-onset timeframe. This suggests the need for a prompt cardiovascular assessment to rule out systemic etiologies and optimize cardiovascular risk factors, in addition to ongoing ophthalmology input., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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39. Spherical equivalent prediction analysis in intraocular lens power calculations using Eyetemis: a comprehensive approach.
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Kan-Tor Y, Abulafia A, Zadok D, Kohnen T, Savini G, Hoffer KJ, and Benjamini Y
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- Humans, Retrospective Studies, Keratoconus diagnosis, Keratoconus physiopathology, Lens Implantation, Intraocular, Female, Male, Phacoemulsification, Middle Aged, Visual Acuity physiology, Cataract Extraction, Aged, Lenses, Intraocular, Refraction, Ocular physiology, Biometry methods, Optics and Photonics
- Abstract
Purpose: To compare 2 different datasets, using Eyetemis, an online analytical tool designed for assessing the spherical equivalent prediction errors (SEQ-PEs) of intraocular lens (IOL) power calculation formulas after cataract surgery., Setting: Institutional., Design: Retrospective case series., Methods: The study comprised 2 distinct datasets of patients who had undergone successful cataract surgery. Dataset 1 includes standard eyes, whereas Dataset 2 includes eyes with keratoconus. An online tool was used for SEQ-PE analysis across the 2 datasets, adhering to ISO standards for evaluating accuracy based on trueness and precision. The tool incorporates robust t tests for comparing the trimmed mean of the data, adjusting for heteroscedasticity. IOL constants in Dataset 1 were optimized for the comparison of Hoffer Q, Holladay 1, SRK/T, Haigis, and Barrett Universal II (BUII) formulas. In Dataset 2, IOL constants from the IOLCon website were used for the comparison of the BUII and its designated KCN version: Barrett TrueK Keratoconus (TrueK [KCN])., Results: For Dataset 1, the trimmed mean SEQ-PE values of all formulas were not significantly different from zero. BUII had superior precision and accuracy compared with all other formulas, except from Haigis ( P ≤ .04). For Dataset 2, BUII's trimmed-mean SEQ-PE was significantly different from zero (0.59 diopters [D], P < .01), unlike the TrueK (KCN) (0.12 D, P = .10). In addition, TrueK (KCN) exhibited enhanced precision and accuracy relative to BUII ( P < .01)., Conclusions: The online analysis tool provides a streamlined approach for assessing the prediction accuracy of SEQ refraction after cataract surgery, effectively evaluating trueness, precision, and overall accuracy through the use of advanced statistical methods., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
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- 2024
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40. Efficacy of Faricimab versus Aflibercept in Diabetic Macular Edema in the 20/50 or Worse Vision Subgroup in Phase III YOSEMITE and RHINE Trials.
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Zarbin M, Tabano D, Ahmed A, Amador M, Ding A, Holekamp N, Lu XY, Stoilov I, and Yang M
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- Humans, Male, Middle Aged, Female, Double-Blind Method, Vascular Endothelial Growth Factor A antagonists & inhibitors, Treatment Outcome, Tomography, Optical Coherence, Aged, Antibodies, Monoclonal, Humanized therapeutic use, Antibodies, Monoclonal, Humanized administration & dosage, Recombinant Fusion Proteins therapeutic use, Recombinant Fusion Proteins administration & dosage, Receptors, Vascular Endothelial Growth Factor therapeutic use, Receptors, Vascular Endothelial Growth Factor administration & dosage, Diabetic Retinopathy drug therapy, Diabetic Retinopathy diagnosis, Diabetic Retinopathy physiopathology, Diabetic Retinopathy complications, Macular Edema drug therapy, Macular Edema physiopathology, Macular Edema diagnosis, Macular Edema etiology, Visual Acuity physiology, Intravitreal Injections, Angiogenesis Inhibitors therapeutic use, Angiogenesis Inhibitors administration & dosage
- Abstract
Purpose: Diabetic Retinopathy Clinical Research Network Protocol T suggests that the response to treatment among patients with diabetic macular edema (DME) may vary depending on baseline best-corrected visual acuity (BCVA). We evaluated the efficacy of faricimab 6 mg versus aflibercept 2 mg over 2 years in patients with DME and baseline BCVA of 20/50 or worse enrolled in faricimab phase III trials., Design: YOSEMITE and RHINE were identically designed, multicenter, randomized, double-masked, active comparator-controlled, noninferiority trials., Participants: Adults ≥18 years of age with center-involving macular edema secondary to type 1 or 2 diabetes., Methods: Patients were randomized to faricimab every 8 weeks (Q8W), faricimab personalized treat-and-extend (T&E) regimen, or aflibercept Q8W. Post hoc subgroup analyses were conducted using the intention-to-treat population with baseline BCVA of 20/50 or worse., Main Outcome Measures: Changes in ETDRS BCVA and central subfield thickness (CST) from baseline to years 1 and 2 were compared between treatment arms using mixed-model repeated measures analyses., Results: In YOSEMITE and RHINE, respectively, 220 and 217 patients in the faricimab Q8W arm, 220 and 219 patients in the faricimab T&E arm, and 219 and 214 patients in the aflibercept Q8W arm showed baseline BCVA of 20/50 or worse. In both trials, mean change in ETDRS BCVA was comparable between treatments across trials at years 1 and 2. In YOSEMITE, adjusted mean change from baseline in CST (μm) at year 1 was greater with faricimab Q8W (-232.8; P < 0.0001) and faricimab T&E (-217.4; P = 0.0004) ) versus aflibercept Q8W (-190.4). In RHINE, this was faricimab Q8W (-214.2; P = 0.0006) and faricimab T&E (-206.6; P = 0.0116) versus aflibercept Q8W (-186.6). In both trials, change from baseline in CST at year 2 was greater with faricimab Q8W versus aflibercept. The median time to first CST of <325 μm and first absence of intraretinal fluid was shorter in the faricimab arms versus the aflibercept arm, with fewer injections on average., Conclusions: In patients with DME and baseline ETDRS BCVA of 20/50 or worse, faricimab treatment resulted in comparable visual acuity, greater reduction in retinal thickness, and fewer injections compared with aflibercept., Financial Disclosure(s): Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article., (Copyright © 2024 American Academy of Ophthalmology. Published by Elsevier Inc. All rights reserved.)
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- 2024
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41. Severe Visual Impairment Following CAR T-Cell Therapy in Two Individuals with Malignant Optic Nerve Infiltration.
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Herr PM, Brantl V, Priglinger SG, Foerster P, and Thurau S
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- Humans, Male, Middle Aged, Female, Receptors, Chimeric Antigen, Glucocorticoids therapeutic use, Adult, Optic Nerve Neoplasms therapy, Vision Disorders etiology, Optic Nerve pathology, Immunotherapy, Adoptive adverse effects, Immunotherapy, Adoptive methods, Visual Acuity physiology
- Abstract
We report two patients who displayed evidence of localized ocular inflammation after CAR T-cell infusion. To manage the resulting severe visual impairment, systemic corticosteroids were administered to both patients. This treatment led to a reduction in local inflammation and restored vision in one of the patients.
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- 2024
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42. Demographic and Clinical Profile of Pediatric Uveitis in Delta Region, Egypt.
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Abdelmageed NH, Adi A, Abo El-Khair S, Shahin M, Mosa DM, Sabry D, and El Nokrashy A
- Subjects
- Humans, Male, Female, Child, Cross-Sectional Studies, Egypt epidemiology, Child, Preschool, Adolescent, Visual Acuity physiology, Sex Distribution, Infant, Uveitis diagnosis, Uveitis epidemiology, Tomography, Optical Coherence methods, Fluorescein Angiography methods
- Abstract
Purpose: Pediatric uveitis poses unique challenges, characterized by difficulties in performing comprehensive examinations, potential delays in diagnosis, and a heightened risk of ocular complications. This study evaluate the etiologic and clinical characteristics of uveitis in children presenting to the Mansoura Ophthalmic Center, Mansoura, Egypt., Methods: A cross-sectional observational study was undertaken involving children diagnosed with uveitis attending the uveitis outpatient clinic at Mansoura University Ophthalmic Center. Comprehensive clinical evaluations were carried out, including detailed history taking and exhaustive ophthalmological examinations. Whenever deemed necessary, Spectral Domain Optical Coherence Tomography (OCT) and Fluorescein Fundus Angiography (FFA) were utilized to secure retinal images. An extensive systemic evaluation was also conducted to discern the diverse causes of uveitis among the participants., Results: The cohort comprised 63 children, impacting 97 eyes. Bilateral involvement was seen in 54% of cases, with a male predominance of 58.7%. The predominant etiologies of uveitis were presumed trematode-induced (36.7%), Juvenile Idiopathic Arthritis (JIA) accounting for 28.6%, and in 12.7% of cases, the cause remained undetermined. Anterior uveitis emerged as the primary presentation in 79.4% of cases. Regarding visual loss, cataract was the leading cause at 56.4%, followed by vitritis at 38.4%, and macular edema at 20.5%., Conclusion: Anterior uveitis was the most frequent presentation in our pediatric cohort. Despite the challenges, the majority of children with uveitis exhibited no significant visual impairment, with most causes of visual loss being reversible.
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- 2024
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43. A Technique of Multiple Corneal Allogeneic Ring Segments Prepared From a Single Corneal Graft: A Case Series.
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Mechleb N, Gatinel D, and Saad A
- Subjects
- Humans, Male, Female, Adult, Young Adult, Corneal Transplantation methods, Transplantation, Homologous, Middle Aged, Tissue Donors, Refraction, Ocular physiology, Adolescent, Corneal Stroma surgery, Corneal Stroma transplantation, Keratoconus surgery, Keratoconus physiopathology, Keratoconus diagnosis, Visual Acuity physiology, Prosthesis Implantation methods, Corneal Topography, Prostheses and Implants, Tomography, Optical Coherence
- Abstract
Purpose: To describe a novel technique for preparing multiple corneal allogeneic ring segments (CAIRS) from a single corneal graft using femtosecond laser technology., Methods: This is a case series of 10 eyes from 10 patients with keratoconus who underwent FS-assisted CAIRS implantation using corneas from 4 donors at the Hospital Foundation Adolphe de Rothschild-Noémie de Rothschild institute. A preoperative and postoperative examination was performed at 1 day, 1 week, and 1 month. Anterior segment OCT and corneal tomography with aberrometric and pachymetric analyses were performed at each visit. Visual, refractive, and topographic parameters were extracted. The thickness and width of implanted CAIRS were analyzed., Results: Patients were classified according to keratoconus severity: group A (maximal keratometry Kmax <75D) and group B (Kmax >75D). At 1 month postoperatively, both groups A and B showed a significant decrease in mean keratometry by 4.78 ± 1.57D and 12.87 ± 4.62D, respectively. Total and higher order aberrations decreased by 5.66 ± 4.55 and 0.65 ± 1.54 in group A and by 9.45 ± 9.15 and 0.49 ± 1.39 in group B, respectively. The corrected distance visual acuity improved by 4.8 ± 1.7 lines in group A. Visual improvement was not significant in group B. One eye in group B exhibited acute rejection and required explantation., Conclusions: FS-assisted multiple CAIRS implantation using a single corneal graft maximizes the utilization of viable corneal tissue. CAIRS implantation is an effective and biocompatible therapeutic alternative, particularly in cases of moderate to advanced keratoconus with Kmax <75D., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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44. A Novel Symptomatic Lecithin-Cholesterol Acyltransferase Gene Mutation With Corneal Amyloidosis.
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Abu Dail Y, Flockerzi E, Flockerzi F, Matthaei M, Cursiefen C, and Seitz B
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- Humans, Female, Aged, Corneal Diseases genetics, Corneal Diseases surgery, Corneal Diseases diagnosis, Visual Acuity physiology, Corneal Opacity genetics, Corneal Opacity diagnosis, Corneal Opacity surgery, Keratoplasty, Penetrating, Phosphatidylcholine-Sterol O-Acyltransferase genetics, Lecithin Cholesterol Acyltransferase Deficiency genetics, Lecithin Cholesterol Acyltransferase Deficiency diagnosis, Amyloidosis genetics, Amyloidosis diagnosis, Amyloidosis surgery, Mutation
- Abstract
Purpose: To present ocular clinical, histological, systemic, and genetic findings of a patient with familial lecithin-cholesterol acyltransferase (LCAT) deficiency caused by a novel genetic variant of the LCAT gene associated with secondary corneal amyloidosis., Methods: Case report., Results: A 74-year-old woman presented with decreased visual acuity (VA), sensitivity to light, and progressive whitening of both corneas for approximately 20 years. The patient had undergone penetrating keratoplasty (PKP) on the right eye 6 years ago. Ophthalmologic examination revealed decreased VA in both eyes (OD: 0.05, OS: 0.3), and even further reduced glare VA (OD: 0.05, OS: 0.1), diffuse whitish corneal opacity involving the total thickness of the corneal stroma without crystalline deposits, and a marked peripheral diffuse arcus. Systemic examination revealed severely reduced plasma high-density lipoprotein cholesterol levels, target cells in blood smear, and chronic normochromic anemia. Clinically, LCAT deficiency was the most likely diagnosis. Further genetic analysis confirmed the diagnosis. The patient is homozygous for the novel variant c.943T>C (p.Trp315Arg) in the LCAT gene. Histologic examination of the cornea removed during the first keratoplasty revealed amyloid deposits. The cornea removed at the second keratoplasty had small vacuoles in the anterior stroma, indicating recurrence of lipid deposition., Conclusions: LCAT deficiency is a rare genetic disorder that can cause corneal opacities because of lipid deposition in the cornea. Systemic manifestations may help in the differential diagnosis to other diseases associated with severe high-density lipoprotein cholesterol reduction. Genetic analysis is employed to confirm the diagnosis. Some mutations in the LCAT gene seem to be associated with secondary corneal amyloidosis. Further investigation of this association is warranted. A recurrence of corneal opacity after PKP seems to occur mainly in the anterior corneal stroma., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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45. Keratometry Changes Between Year One to Seven After Corneal Cross-Linking in Patients With Keratoconus.
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Neuhann L, Vogel D, Hall J, Dreyhaupt J, Werner JU, Garip-Kuebler A, and Enders C
- Subjects
- Humans, Male, Retrospective Studies, Female, Adult, Young Adult, Follow-Up Studies, Adolescent, Cornea pathology, Middle Aged, Refraction, Ocular physiology, Time Factors, Corneal Cross-Linking, Keratoconus drug therapy, Keratoconus physiopathology, Keratoconus metabolism, Cross-Linking Reagents therapeutic use, Photosensitizing Agents therapeutic use, Collagen metabolism, Visual Acuity physiology, Riboflavin therapeutic use, Ultraviolet Rays, Corneal Topography, Photochemotherapy methods, Corneal Stroma metabolism
- Abstract
Purpose: We evaluated the timing at and extent to which midterm to long-term keratometric changes can occur in year 1 to 7 after corneal collagen cross-linking (CXL) in patients with keratoconus., Methods: We conducted a subgroup analysis of a retrospective cohort study of all consecutive patients who underwent CXL at our cornea center between 2007 and 2011. The inclusion criteria comprised CXL according to the Dresden protocol and a full set of keratometry parameters collected by Scheimpflug tomography preoperatively and at year 1, 3, 5, and 7 after CXL. In addition, best-corrected visual acuity was evaluated., Results: Sixty-three eyes of 47 patients were enrolled. Mean age was 25.46 years ±7.39 years (80.9% male patients). All relevant keratometric parameters showed significant improvement at year 1 after CXL (except for posterior astigmatism). According to mixed-effects model analysis, they all showed further significant change at different points in time between year 1, 3, 5, and 7 (except for K1). In addition, best-corrected visual acuity improved statistically significant between year 1, 3, 5, and 7. Suspected disease progression was noted in 22.2% of patients, mostly between year 1 and 3 after CXL., Conclusions: After initial improvement 1 year after CXL, keratometric and functional parameters were stable until year 5 after CXL in most cases; further improvement can take place even after up to 7 years post-CXL. By contrast, in case of disease progression, changes seem to occur already between year 1 and 3 after CXL., Competing Interests: The authors have no funding or conflicts of interest to disclose., (Copyright © 2024 Wolters Kluwer Health, Inc. All rights reserved.)
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- 2024
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46. Macular Punctate Lesions Presenting as a Primary Manifestation of Ocular Toxoplasmosis.
- Author
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Kelgaonkar A, Patel A, Tyagi M, Basu S, and Pathengay A
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- Humans, Male, Retrospective Studies, Female, Adult, Fluorescein Angiography methods, Visual Acuity physiology, Middle Aged, Immunoglobulin G blood, Eye Infections, Parasitic diagnosis, Eye Infections, Parasitic parasitology, Chorioretinitis diagnosis, Chorioretinitis parasitology, Antiprotozoal Agents therapeutic use, Toxoplasmosis, Ocular diagnosis, Toxoplasma isolation & purification, Antibodies, Protozoan blood, Tomography, Optical Coherence, Macula Lutea pathology, Immunoglobulin M blood
- Abstract
Purpose: To study clinical features and outcomes of primary ocular Toxoplasmosis (OT) cases presenting as macular punctate lesions., Methods: Retrospective review of three cases of OT with positive Toxoplasma serology., Results: We describe three cases presenting as primary OT with no evidence of old retinochoroidal scar in either eye. All the cases had multiple foveal or extrafoveal, punctate, inner/outer, or combined lesions at macula with minimal vitreous reaction. During the first/primary episode, all the lesions resolved with 1. retinal atrophy, thinning ( n = 1) or 2. Progressed to limited full-thickness retinitis lesions ( n = 2). Recurrence as typical retinochoroiditis was seen in one eye. More than four-fold IgG positivity was seen in all cases while IgM positivity was seen in two cases., Conclusions: Macular punctate lesions (inner/outer/combination) can be the primary manifestation of ocular toxoplasmosis in the absence of old retinochoroiditis scars in either eye.
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- 2024
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47. Efficacy of gonioscopy-assisted transluminal trabeculotomy and trabeculectomy in patients with primary open-angle glaucoma and pseudoexfoliative glaucoma: A single surgeon's experience.
- Author
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Cakir I, Balci AS, Alagoz N, Yalcinkaya Cakir G, Altan C, and Yasar T
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- Humans, Retrospective Studies, Male, Female, Aged, Treatment Outcome, Follow-Up Studies, Middle Aged, Tonometry, Ocular, Trabeculectomy methods, Glaucoma, Open-Angle surgery, Glaucoma, Open-Angle physiopathology, Intraocular Pressure physiology, Gonioscopy, Exfoliation Syndrome surgery, Exfoliation Syndrome physiopathology, Visual Acuity physiology
- Abstract
Purpose: To compare the intraocular pressure (IOP)-lowering efficiency of gonioscopy-assisted transluminal trabeculotomy (GATT) and trabeculectomy (TRAB) with mitomycin C in patients with primary open-angle glaucoma (POAG) and pseudoexfoliative glaucoma (PEXG)., Methods: In this retrospective comparative study, consecutive patients with POAG or PEXG who underwent GATT or TRAB by a single surgeon and with a follow-up period of at least 1 year were included. Surgical success rates, change in best-corrected visual acuity, IOP, the need for antiglaucoma medication, surgical complications, and the need for additional glaucoma surgery were compared. Surgical success was defined as an IOP reduction of ≥30% or an IOP of ≤18 mmHg. Complete success was defined as without medication. Qualified success was defined as with or without topical medication., Results: The mean baseline IOP was 27.4 ± 8.3 and 24.6 ± 7.6 mmHg ( P = 0.13) with the mean number of medications being 3.7 ± 1.0 and 3.7 ± 1.1 ( P = 0.98) in TRAB and GATT, respectively. At 12 months, the mean IOP was 15.3 ± 3.5 and 12.5 ± 4.6 mmHg ( P = 0.24) with the mean number of medications being 0.9 ± 1.2 and 0.8 ± 1.4 ( P = 0.76) after GATT and TRAB, respectively. IOP was lowered from baseline by 52.7% ± 17.5% after TRAB and 45.7% ±18.6% after GATT ( P = 0.12). There was no decrease in best-corrected visual acuity in either group. The qualified surgical success rate was 94.4% in the GATT group and 94.9% in the TRAB group ( P = 0.75). Percentage of complete success was 64.1% and 52.8% ( P = 0.22) after TRAB and GATT, respectively., Conclusion: In patients with POAG and PEXG, GATT was as effective and safe as TRAB in lowering IOP and reducing the number of antiglaucomatous drugs., (Copyright © 2024 Copyright: © 2024 Indian Journal of Ophthalmology.)
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- 2024
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48. Temporal changes in incidence, prevalence and causes of childhood visual impairment - Learnings from 45 years with the National Danish Registry of Children with Visual Impairment.
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Kessel L, Jensen H, Larsen AC, Rosenberg T, and Nissen KR
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- Humans, Denmark epidemiology, Prevalence, Child, Incidence, Male, Adolescent, Female, Child, Preschool, Infant, Vision Disorders epidemiology, Visually Impaired Persons statistics & numerical data, Infant, Newborn, Retrospective Studies, Registries, Visual Acuity physiology
- Abstract
Purpose: The aim of the study was to describe the temporal changes in causes and prevalence of childhood visual impairment in Denmark based on the National Danish Registry of Children with Visual Impairment (NDRCVI)., Methods: Annual reports on the NDRCVI since its establishment in 1979 were reviewed and data on the number of registered children and the causes for registration with a visual impairment were evaluated., Results: The average annual incidence of childhood visual impairment in Denmark is 2.8 per 1000 live-born children and the prevalence of childhood visual impairment is 1.6 per 1000 children <18 years. Today, fewer children are severely visually impaired (visual acuity ≤6/60) at the time of registration (31.6% since 2010 vs. 51.1% in the 1980s). Cerebral visual impairment and optic nerve atrophy have remained common causes of childhood visual impairment whereas sequelae to retinopathy of prematurity have been almost eliminated as a cause. Systemic comorbidities are more common now in children with visual impairment (seen in 63.9% in the last decades vs. 44.6%in the 1980-ties)., Conclusion: Whereas the prevalence of visual impairment has remained relatively stable over the years, the severity of visual impairment has improved, suggesting that more children will be able to live an active life supported by aids compensating vision loss. However, more children have systemic comorbidities in combination with their visual impairment suggesting that children with visual impairment face a life not only limited by the obstacles of poor vision. This calls for multidisciplinary management and support of affected children and families., (© 2024 The Authors. Acta Ophthalmologica published by John Wiley & Sons Ltd on behalf of Acta Ophthalmologica Scandinavica Foundation.)
- Published
- 2024
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49. The effect of lens and fitting characteristics upon scleral lens centration.
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Fisher D, Collins MJ, and Vincent SJ
- Subjects
- Humans, Male, Adult, Female, Young Adult, Visual Acuity physiology, Sclera, Prosthesis Fitting, Contact Lenses
- Abstract
Purpose: To quantify the impact of varying central fluid reservoir depth, lens thickness/mass and the addition of a peripheral fenestration upon scleral lens centration., Methods: Ten young, healthy adults participated in a series of repeated-measures experiments involving short-term (90 min) open eye scleral lens wear. Scleral lens parameters (material, back optic zone radius, diameter, back vertex power and landing zone) were controlled across all experiments, and the central fluid reservoir depth (ranging from 144 to 726 μm), lens thickness (ranging from 150 to 1200 μm), lens mass (101-241 mg) and lens design (with or without a single 0.3 mm peripheral fenestration) were altered systematically. Scleral lens decentration was quantified using over-topography maps., Results: On average, scleral lens centration varied by <0.10 mm over 90 min of wear. Medium and high initial fluid reservoir conditions resulted in 0.17 mm more temporal and 0.55 mm more inferior lens decentration, compared to the low fluid reservoir depth (p < 0.001). Changes in lens thickness or the addition of a peripheral fenestration did not cause clinically significant changes in centration (<0.10 mm on average) when controlling for fluid reservoir depth. Central fluid reservoir depth was the best predictor of horizontal and vertical lens decentration, explaining 62-73% of the observed variation, compared to 40-44% for lens thickness and mass., Conclusion: Scleral lens decentration remained relatively stable over 90 min of lens wear. A greater initial central fluid reservoir depth resulted in significantly more lens decentration, particularly inferiorly. Large variations in lens thickness, mass or the addition of a single peripheral fenestration did not substantially affect lens centration., (© 2024 The Author(s). Ophthalmic and Physiological Optics published by John Wiley & Sons Ltd on behalf of College of Optometrists.)
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- 2024
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50. Nd:YAG laser capsulotomy vs needle aspiration in intumescent cataracts: comparative study of complications and outcomes.
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Ceylan A, Aydin FO, Karapapak M, Aydın S, Ozal SA, and Yildirim Y
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- Humans, Retrospective Studies, Cross-Sectional Studies, Female, Male, Middle Aged, Aged, Phacoemulsification, Laser Therapy methods, Treatment Outcome, Lens Implantation, Intraocular, Intraoperative Complications, Adult, Anterior Capsule of the Lens surgery, Lasers, Solid-State therapeutic use, Capsulorhexis methods, Visual Acuity physiology, Postoperative Complications, Cataract complications
- Abstract
Purpose: To compare the complications and postoperative outcomes of Nd:YAG laser anterior capsulotomy vs a needle aspiration approach for capsulorhexis in patients with intumescent cataracts., Setting: University of Health Sciences, Basaksehir Cam and Sakura City Hospital Department of Ophthalmology, Istanbul, Turkey., Design: Retrospective, cross-sectional study., Methods: Patients with intumescent cataract were divided into 2 groups. Group 1 (37 eyes) underwent Nd:YAG laser capsulotomy preoperatively, which reduced lens pressure. In Group 2 (31 eyes), the capsulorhexis was completed by reducing the intralenticular pressure by needle aspiration and then gradually expanding the capsule. Demographics, pre/postoperative parameters, complications, and surgical times were analyzed., Results: 68 eyes of 68 patients were evaluated. Age and sex exhibited no significant differences between groups. Group 2 had more complications than Group 1 ( P = .041). Specifically, no capsular tear extensions were seen in Group 1 while 4 patients in Group 2 had tears extending to the lens periphery. Group 1 showed a significant decrease in surgical maneuvers and time ( P = .028) while no significant difference was found in effective phacoemulsification time ( P = .076)., Conclusions: Nd:YAG laser capsulotomy effectively prevented capsular extensions and reduced surgical time in intumescent cataracts. This technique provides a safe alternative to traditional methods, potentially reducing intraoperative risks and improving surgical efficiency. The findings support Nd:YAG laser anterior capsulotomy as a viable approach for capsulorhexis in intumescent cataracts, emphasizing its potential benefits in reducing complications and enhancing surgical outcomes., (Copyright © 2024 Published by Wolters Kluwer on behalf of ASCRS and ESCRS.)
- Published
- 2024
- Full Text
- View/download PDF
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