63 results on '"Chien Hsiung Lai"'
Search Results
2. Literature- and Experience-Based Consensus for Acute Post-operative Endophthalmitis and Endogenous Endophthalmitis in Taiwan
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Cheng-Yung Lee, Shwu-Jiuan Sheu, San-Ni Chen, Cheng-Kuo Cheng, Hsi-Kung Kuo, De-Kuang Hwang, Chien-Hsiung Lai, Wei-Chun Chan, Yi-Ting Hsieh, and Chang-Hao Yang
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Endogenous endophthalmitis (EnE) ,Acute post-operative endophthalmitis ,Taiwan ,Expert consensus ,Ophthalmology ,RE1-994 - Abstract
Abstract Clinical practices on acute post-operative and endogenous endophthalmitis (EnE) are highly variable among clinicians due to a lack of up-to-date, high-quality evidential support. An expert consensus is thus much needed. A panel consisting of ten retinal specialists in Taiwan was organized. They evaluated relevant literature and developed key questions regarding acute post-operative and EnE that are cardinal for practice but yet to have conclusive evidence. The panel then attempted to reach consensus on all the key questions accordingly. There were eight key questions proposed and their respective consensus statements were summarized as follows: Gram staining and culture are still the standard procedures for the diagnosis of endophthalmitis. Vitrectomy is recommended to be performed earlier than the timing proposed by the Endophthalmitis Vitrectomy Study (EVS). Routine intracameral antibiotic injection for post-cataract surgery endophthalmitis prophylaxis is not recommended because of potential compounding error hazards and a lack of support from high-quality studies. Routine fundus examination is recommended for all patients with pyogenic liver abscess. In EnE, vitrectomy is recommended if diffused and dense vitritis is present, or if the disease progresses. These consensus statements may work as handy guidance or reference for clinical practices of acute post-operative and EnE.
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- 2023
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3. Using A modified quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal to correct involutional lower eyelid entropion in Asians
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Chau-Yin Chen, Chien-Hsiung Lai, Yen-Chang Chu, Yi-Lin Liao, Jin-Jhe Wang, Wei-Dar Chen, and Yueh-Ju Tsai
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Entropion ,Involution ,Eyelid laxity ,Modified quickert procedure ,Prolapsed fat ,Medicine (General) ,R5-920 ,Biology (General) ,QH301-705.5 - Abstract
Purpose: To propose a modified Quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal which corrects involutional lower eyelid entropion, and to validate the procedure as an adequate surgical management according to anatomical deformities and pathogenesis of Asian patients. Methods: Ninety-five patients (45 men, 50 women; 108 eyelids [55 right eyes, 53 left eyes]) who underwent this modified surgical procedure with a minimum follow-up period of 2 months were examined. All pre- and post-operative evaluations and surgical procedure were performed exclusively from the same oculoplastic surgeon. Postoperative results, recurrence rate, and complications were assessed. Results: The mean follow-up period was 13.33 months (range, 2–67 months). Of the 108 eyelids, 4 developed recurrent entropion with trichiasis, corresponding to an overall recurrence rate of 3.70%. No major complications, such as overcorrection (ectropion), symblepharon, infection, or wound dehiscence, occurred during the follow-up period after surgery. Of these 4 eyelids exhibiting recurrence, 3 occurred within 10 months and 1 occurred 49 months after surgery. Three recurrent patients received secondary surgery for re-correction with successful results. Conclusion: The modified Quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal not only demonstrated safety and effectiveness, but also led to low rate of recurrence and complications. It could be a strategy for correction of involutional entropion in Asian patients.
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- 2023
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4. Optical coherence tomography and imaging biomarkers as outcome predictors in diabetic macular edema treated with dexamethasone implant
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Hung-Da Chou, Cheng-Hsiu Wu, Wei-Yu Chiang, Nan-Ni Chen, Yih-Shiou Hwang, Kuan-Jen Chen, Chien-Hsiung Lai, Pei-Chang Wu, Yi-Hao Chen, Ling Yeung, Shih-Chieh Shao, Chi-Chun Lai, and Wei-Chi Wu
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Medicine ,Science - Abstract
Abstract In this retrospective, multicenter study, we determined the predictive value of imaging biomarkers in diabetic macular edema (DME) outcomes following dexamethasone (DEX) implant(s). Sixty-seven eyes of 47 patients’ best-corrected visual acuity (BCVA) and central foveal thickness (CFT) on optical coherence tomography (OCT) before and after intravitreal DEX implants were evaluated. Baseline imaging biomarkers were graded using fundus photography and OCT, and the predictive value of biomarkers for significant treatment effects at six months was analyzed. Six months after 2.0 ± 0.8 (mean ± SD) DEX implants, 35 (52%) and 16 (24%) eyes had CFT reduction ≥ 10% from baseline and decreased to
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- 2022
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5. Optimal approaches and criteria to treat-and-extend regimen implementation for Neovascular age-related macular degeneration: experts consensus in Taiwan
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Cheng-Kuo Cheng, Shih-Jen Chen, Jiann-Torng Chen, Lee-Jen Chen, San-Ni Chen, Wen-Lu Chen, Sheng-Min Hsu, Chien-Hsiung Lai, Shwu-Jiuan Sheu, Pei-Chang Wu, Wei-Chi Wu, Wen-Chuan Wu, Chung-May Yang, Ling Yeung, Ta-Ching Chen, and Chang-Hao Yang
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Anti-vascular endothelial growth factors ,Expert opinion ,Neovascular age-related macular degeneration ,Treat-and-extend ,Ophthalmology ,RE1-994 - Abstract
Abstract The management of neovascular age-related macular degeneration (nAMD) has taken a major stride forward with the advent of anti-VEGF agents. The treat-and-extend (T&E) approach is a refined management strategy, tailoring to the individual patient’s disease course and treatment outcome. To provide guidance to implementing anti-VEGF T&E regimens for nAMD in resource-limited health care systems, an advisory board was held to discuss and generate expert consensus, based on local and international guidelines, current evidence, as well as local experience and reimbursement policies. In the experts’ opinion, treatment of nAMD should aim to maximize and maintain visual acuity benefits while minimizing treatment burden. Based on current evidence, treatment could be initiated with 3 consecutive monthly injections. After the initial period, treatment interval may be extended by 2 or 4 weeks each time for the qualified patients (i.e. no BCVA loss ≥5 ETDRS letters and dry retina), and a maximum interval of 16 weeks is permitted. For patients meeting the shortening criteria (i.e. any increased fluid with BCVA loss ≥5 ETDRS letters, or presence of new macular hemorrhage or new neovascularization), the treatment interval should be reduced by 2 or 4 weeks each time, with a minimal interval of 4 weeks. Discontinuation of anti-VEGF may be considered for those who have received 2–3 consecutive injections spaced 16 weeks apart and present with stable disease. For these individuals, regular monitoring (e.g. 3–4 months) is recommended and monthly injections should be reinstated upon signs of disease recurrence.
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- 2022
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6. Functional and Anatomical Outcomes of Anti-Vascular Endothelial Growth Factor Treatment for Exudative Age-Related Macular Degeneration with or without Obstructive Sleep Apnea
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Nan-Ni Chen, Chau-Yin Chen, Jin-Jhe Wang, Heng-Chiao Huang, Wei-Dar Chen, Ching-Lung Chen, Yao-Hsu Yang, Meng-Hung Lin, Ting-Yu Kuo, and Chien-Hsiung Lai
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obstructive sleep apnea ,age-related macular degeneration ,anti-vascular endothelial growth factor treatment ,Biology (General) ,QH301-705.5 ,Chemistry ,QD1-999 - Abstract
(1) To investigate the functional and anatomical outcomes of anti-vascular endothelial growth factor (anti-VEGF) treatment in patients with exudative age-related macular degeneration (AMD) with or without obstructive sleep apnea (OSA); (2) In total, 65 patients with AMD with or without OSA who received three consecutive doses of intravitreal anti-VEGF injections were enrolled. The primary outcomes—best-corrected visual acuity (BCVA) and central macular thickness (CMT)—were assessed at 1 and 3 months. Moreover, morphological changes observed through optical coherence tomography were analyzed; (3) In total, 15 of the 65 patients had OSA and were included in the OSA group; the remaining 50 patients were included in the non-OSA (control) group. At 1 and 3 months after treatment, BCVA and CMT had improved but did not differ significantly between the groups. More patients in the OSA group demonstrated subretinal fluid (SRF) resorption at 3 months after treatment than in the non-OSA group (p = 0.009). Changes in other imaging biomarkers, such as intraretinal cysts, retinal pigment epithelium detachment, hyperreflective dots, and ellipsoid zone disruptions, did not differ significantly between the groups; (4) Our results suggest that the BCVA and CMT outcomes 3 months after anti-VEGF treatment are similar between patients with and without OSA. Moreover, patients with OSA may exhibit superior SRF resorption. A large-scale prospective study is mandatory to evaluate the association between SRF resorption and visual outcomes in AMD patients with OSA.
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- 2023
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7. Retrospective Analysis of Surgical Outcomes on Axial Length Elongation in Eyes with Posterior and Combined Persistent Fetal Vasculature
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Heng-Chiao Huang, Chien-Hsiung Lai, Eugene Yu-Chuan Kang, Kuan-Jen Chen, Nan-Kai Wang, Laura Liu, Yih-Shiou Hwang, Chi-Chun Lai, and Wei-Chi Wu
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axial length ,outcomes ,persistent fetal vascular vasculature ,persistent hyperplastic primary vitreous ,risk factors ,vitrectomy ,Biology (General) ,QH301-705.5 ,Chemistry ,QD1-999 - Abstract
This study aims to investigate the outcomes and risk factors associated with poor vision (vision less than counting fingers, 2.0 logMAR, Snellen vision 20/2000) in patients with posterior or combined persistent fetal vasculature (PFV), with or without surgery. We retrospectively reviewed the medical records of patients who were diagnosed with PFV from January 2008 to April 2021. We included 51 eyes of 44 patients who presented with PFV, of which 38 eyes underwent surgical correction (pars plicata/plana vitrectomy, with or without lensectomy, and intraocular lens implantation) at the median age of 6.0 months (range: 0.7 to 82.0). The mean follow-up was 68.8 months ± 38.0 months. The axial length change in the eyes undergoing surgery was significantly higher than the eyes without surgery (p = 0.025). Initial anterior chamber collapse and retinal detachment were associated with poor vision (p = 0.006 and p = 0.002, respectively). In addition, 37% of eyes with posterior or combined PFV had vision better than counting fingers. Surgery for eyes with PFV could result in better eye growth. Visual outcomes remained poor and were associated with the level of macular abnormality. Initial anterior chamber collapse and retinal detachment at presentation were the risk factors for poor visual outcomes. Vitrectomy for selected PFV eyes is valuable and associated with a better cosmetic outcome (better eye growth).
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- 2023
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8. Post-operative optical coherence tomography angiography features of chorioretinal folds resulting from pleomorphic adenoma of the lacrimal gland (PALG) of orbit- a case report
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Nan-Ni Chen, Chien-Hsiung Lai, Tsai Yueh-Ju, and Chau -Yin Chen
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Chorioretinal folds ,Hyperopic shift ,Pleomorphic adenoma of the lacrimal gland (PALG) ,Optical coherence tomography angiography (OCT-A) ,Case report ,Ophthalmology ,RE1-994 - Abstract
Abstract Background Chorioretinal fold (CFs) is a rare condition resulting from undulations in the choriocapillaris, Bruch's membrane, retinal pigment epithelium and occasionally neurosensory retina. It can be idiopathic or due to different etiologies. The use of spectral-domain optical coherence tomography (SD-OCT) has increased the diagnosis of CFs and helped in differentiation from other etiologies. Recently, optical coherence tomography angiography (OCT-A) emerged as a non-invasive imaging technique allowing visualization of the individual layers of microvasculature of the retina and the choroid by comparing consecutive B-scans. We described a rare case of pleomorphic adenoma of the lacrimal gland (PALG) causing hyperopic shift and CFs with the new OCT-A technology, getting deeper insight into vascular changes of this disease. Case presentation A 40-year-old Asian man experienced progressive blurred vision in his right eye over 6 months. The patient’s initial axial lengths were 25.55 mm in the right eye and 28.13 mm in the left eye. Fundus examination in the right eye revealed oblique CFs as well as the SD-OCT displayed. Magnetic resonance imaging showed intraconal mass extended from superior temporal side of the right orbit. The patient then received tumor removal surgery through lateral orbitotomy and histopathology confirmed a pleomorphic adenoma of the orbit. The patient had regular follow-up for 1 year. His best corrected visual acuity markedly improved from 20/50 to 20/20 with nearly stationary AXL. We performed OCT-A at one year after the surgery, which showed early visualization of deep choroidal vessels. The scleral remodeling due to mass effect of retrobulbar tumor also caused displacement of the deep large choroidal vessels over the superior macular area even after tumor removal. Conclusions We reported a rare case of PALG with hyperopic shift and CFs as initial presentation. Surgical removal of the tumor partially resolved the CFs and contributes to impressive visual acuity recovery. The use of OCT-A provided a deeper insight to vascular architecture changes resulting from scleral remodeling after long-term tumor compression.
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- 2020
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9. Postoperative Mycobacteroides abscessus subsp. abscessus endophthalmitis: Clinical analysis of 12 clustered adults and a proposed therapeutic algorithm
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Jia-Horung Hung, Wen-Chien Ko, Chau-Yin Chen, Sheng-Hsiang Lin, Cheng-Lin Wu, Sheng-Min Hsu, Yu-Ti Teng, Shih-Hao Wang, Sung-Huei Tseng, Fu-Chin Huang, Chun-Chieh Lai, Ching-Lung Chen, Chien-Hsiung Lai, Po-Lin Chen, and Evelyn Jou-Chen Huang
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Endophthalmitis ,Mycobacteroides abscessus subsp. abscessus ,Microbiology ,QR1-502 - Abstract
Purpose: Postoperative endophthalmitis caused by nontuberculous mycobacterium is a rare but devastating complication after intraocular surgery. However, optimal treatment strategies remain undetermined in view of its rarity. Methods: We investigated the cases of culture-proven postoperative Mycobacteroides abscessus subsp. abscessus endophthalmitis in southern Taiwan, focusing on clinical manifestations and microbiological study, and aimed to describe clinical staging and to propose a therapeutic modality for this disease. Results: Twelve cases, including two published cases, were treated in two medical centers in southern Taiwan between Aug. 2011 and Dec. 2016, and all ever received cataract surgery at one clinic. Their disease courses could be categorized into four distinct stages, i.e., the initial, quiescent, recurrent, and end stage, and some cases experienced 1–4 cycles of quiescent-recurrent stages. Although all eyes ended up with phthisis or were eviscerated, the affected eyes receiving pars plana vitrectomy (PPV) tended to become quiescent and survived longer than those without PPV (adjusted hazard ratio: 13.9, p
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- 2020
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10. Management of polypoidal choroidal vasculopathy: Experts consensus in Taiwan
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Lee-Jen Chen, Cheng-Kuo Cheng, Ling Yeung, Chang-Hao Yang, Shih-Jen Chen, Jiann-Torng Chen, San-Ni Chen, Wen-Lu Chen, Sheng-Min Hsu, De-Kuang Hwang, Chi-Chun Lai, Chien-Hsiung Lai, Fenq-Lih Lee, Chung-May Yang, and Tsung-Tien Wu
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Medicine (General) ,R5-920 - Abstract
Polypoidal choroidal vasculopathy (PCV) is a prevalent retinal disease predominantly occurs in Asians that shares some similarities seen in neovascular age-related macular degeneration. Recent large multicenter clinical trials on intravitreal anti-vascular endothelial growth factor (VEGF) agents and photodynamic therapy (PDT) have shed lights on the management of PCV. The Taiwan National Health Insurance had granted limited anti-VEGF agents and PDT for patients with PCV after the approval of required data submission, especially fundus angiography, optical coherence tomography, and visual acuity. In order to best utilize these limited resources for the patients, an expert meeting was held to provide updated Taiwan consensus recommendations for the management of PCV, including initial therapy selection, assessment of treatment response, re-treatment/rescue treatment, and determination of treatment extension/follow-up schedule. An algorithm for treatment allocation under both initial and re-treatment setting was proposed. Further mechanistic and clinical studies are required to investigate the prognostic factors and optimal treatment protocols that will improve healthcare quality and reduce burden of disease and treatment for patients with PCV. Keywords: Choroidal neovascularization, PCV, Photodynamic therapy, Vascular endothelial growth factors, Wet age-related macular degeneration
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- 2020
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11. Trends in Infectious Keratitis in Taiwan: An Update on Predisposing Factors, Microbiological and Antibiotic Susceptibility Patterns
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Jin-Jhe Wang, Chien-Hsiung Lai, Chau-Yin Chen, Chia-Yen Liu, Meng-Hung Lin, Yao-Hsu Yang, and Pei-Lun Wu
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infectious keratitis ,corneal infection ,antibiotic susceptibility ,antimicrobial resistance ,Medicine (General) ,R5-920 - Abstract
Infectious keratitis (IK) represents a major cause of corneal blindness. This study aims to investigate the demographics, risk factors, microbiological characteristics and antibiotic susceptibility patterns of IK in Taiwan over the past 15 years. A retrospective population-based study was conducted using the Chang Gung Research Database. Patients with IK were identified by diagnostic codes for corneal ulcer from 2004 to 2019. Of 7807 included subjects, 45.2% of patients had positive corneal cultures. The proportion of contact lens-related IK declined, while that of IK related to systemic diseases grew. The percentage of isolated gram-positive bacteria surpassed that of gram-negative bacteria in the 15-year period. The prevalence of Pseudomonas aeruginosa showed a decreasing trend (p = 0.004), whereas coagulase-negative Staphylococcus (CNS) and Propionibacterium species were increasingly detected (p < 0.001). Overall, the trend of antibiotic susceptibility of both gram-positive and gram-negative bacteria did not change throughout the study period. The susceptibility to the test antibiotics maintained over 90% in gram-negative isolates over 15 years. Vancomycin preserved 100% susceptibility to all gram-positive isolates. Since most tested antibiotics exhibited stable susceptibility over decades, this study reinforced that fluoroquinolones and fortified vancomycin continue to be good empiric therapies for treating bacterial keratitis in Taiwan.
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- 2022
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12. Non-Arteritic Anterior Ischemic Optic Neuropathy Following COVID-19 Vaccination
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Wen-Yun Lin, Jin-Jhe Wang, and Chien-Hsiung Lai
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non-arteritic anterior ischemic optic neuropathy ,COVID-19 vaccination ,ocular adverse reaction ,Medicine - Abstract
People are advised to receive a vaccine booster as the Delta and Omicron variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) emerge, but various adverse ocular reactions after vaccination have been reported. NAION following COVID-19 vaccination appears extremely rarely. Here, we report a case of a 61-year-old female with sudden painless blurred vision developing NAION after receiving ChAdOx1 nCoV-19 (AstraZeneca) vaccination and provide an in-depth explanation of the possible mechanisms regarding the hypercoagulable state after vaccination. Our report adds to the literature on potential adverse ocular effects after COVID-19 vaccination, and we as ophthalmologists recommend that clinicians should increase awareness of this possible ocular complication when evaluating patients with sudden visual disturbance with a recent history of vaccination.
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- 2022
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13. The relationship between age, axial length and retinal nerve fiber layer thickness in the normal elderly population in Taiwan: The Chiayi eye study in Taiwan.
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Chau-Yin Chen, Evelyn Jou-Chen Huang, Chien-Neng Kuo, Pei-Lun Wu, Ching-Lung Chen, Pei-Chen Wu, Shin-Hua Wu, Yin-Chi King, and Chien-Hsiung Lai
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Medicine ,Science - Abstract
To interpret how the thickness of the peripapillary retinal nerve fiber layer (RNFL) changes with increasing age, axial length, or anterior chamber depth as measured by spectral domain optical coherence tomography (OCT) in the normal elderly population in Taiwan.A total of 82 volunteers (143 eyes) were enrolled. Generalized estimating equations were used to evaluate the correlation.The RNFL was significantly thinner in the superonasal (p = 0.004), inferotemporal (p = 0.046), and temporolower (p = 0.009) segments with age. The same trend was also observed in the superotemporal (p = 0.330) segment, although it was not statistically significant. The global RNFL thickness decreased by 4.97 μm per decade (β = -0.497; p = 0.021), and thinning was significant in the superonasal (-9.90 μm per decade, p < 0.001) and temporolower (-6.78 μm per decade, p < 0.001) segments; the same trend showed borderline significance in the superotemporal (-6.96 μm per decade, p = 0.073) and inferotemporal (-7.23 μm per decade, p = 0.059) segments. In eyes with longer axial length, the RNFLs significantly decreased in the non-temporal segments. Global RNFL thickness decreased by 3.086 μm for each additional millimeter of axial length (β = -3.086; p < 0.001).Changes in RNFL thickness were correlated with age in the superonasal, superotemporal, inferotemporal, and temporolower segments, and were correlated with axial length in the non-temporal segments. Anterior chamber depth was not correlated with RNFL thickness.
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- 2018
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14. Optical Coherence Tomographic morphological changes over the course of Ranibizumab Treatment in Diabetic Macula Edema
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Nan-Ni Chen, Chien-Hsiung Lai, Yi-Lin Liao, Ching-Lung Chen, Jou-Chen Huang, Yen-Chang Chu, Pei-Lun Wu, and Chau-Yin Chen
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Background/Objectives The purpose of this study was to present an association among different morphologic subtypes of diabetic macular edema (DME) and their response and changes in morphological features of spectral domain optical coherence tomography (SD-OCT) over time after intravitreal ranibizumab (IVR) injections. Subjects/Methods This retrospective study included 228 eyes of 150 subjects received IVR for DME and were observed for at least 2 years. Medical charts and SD-OCT image of consecutive patients were reviewed at designated time points after first IVR treatment. Results For a total of 228 eyes, 42 eyes (18.4%) were classified as group 1 (with OCT morphological changes) and 186 eyes (81.6%) classified as group 2 (without OCT morphological changes). The baseline best-corrected visual acuity and 2nd year central macula thickness were significantly different between two groups (p=0.035, p=0.001), with group 1 a poor BCVA (log MAR) 0.84±0.39 and greater CMT at 2nd year (354.21±89.02). Vitreomacular interface abnormalities (VIMA) was the most common type of change and developed in 14.9% of patients with DME who received intravitreal injection of ranibizumab treatment during a follow-up period of 24 months. Stroke was found as a risk factor for developing into another DME subtypes with odds ratio 6.381 (p= 0.038). Conclusions Macula edema disappeared rapidly after IVR treatment and might recur or even evolve to other subtypes over time, which may indicate a disease progression with poor outcome. VIMA was the most common type of change and presented in all eyes with DME irrespective of the type of macular edema as classified by SD-OCT.
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- 2022
15. Difficulty in articulation following left progressive blurred vision
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Chien-Hsiung Lai, Wei-Dar Chen, and An-Ting Lee
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Male ,0301 basic medicine ,030103 biophysics ,medicine.medical_specialty ,genetic structures ,Vision Disorders ,Constriction, Pathologic ,Macular Degeneration ,03 medical and health sciences ,0302 clinical medicine ,Retinal Diseases ,Blurred vision ,medicine.artery ,Ophthalmology ,Humans ,Medicine ,Macula Lutea ,Fluorescein Angiography ,Aged ,Retrospective Studies ,business.industry ,Retinal Vessels ,General Medicine ,medicine.disease ,eye diseases ,Stenosis ,Stroke, Lacunar ,030221 ophthalmology & optometry ,Maculopathy ,Internal carotid artery ,medicine.symptom ,business ,Articulation (phonetics) ,Tomography, Optical Coherence - Abstract
Purpose: To report a case of Paracentral acute middle maculopathy (PAMM) caused by severe internal carotid artery (ICA) stenosis and discuss the correlation between PAMM and ICA stenosis. Case description: A 67-year-old male patient presented with left acute blurred vision for 1 week. The best-corrected visual acuity of the left eye was 0.01. Funduscopic examination showed multiple grayish patches around the left macula. Optical coherence tomography (OCT) demonstrated train-track hyperreflective lesions over the inner nuclear layer of the left eye. Afterwards, he experienced sudden slurred speech with fair comprehension. Magnetic resonance imaging and angiography of the brain demonstrated left lacunar infarction with severe left ICA stenosis. After anticoagulant therapy, his dysarthria and left visual acuity were improved significantly. Conclusions: To our knowledge, PAMM in coincidence with lacunar infarction induced by ICA stenosis is firstly described in the literature. PAMM could be a critical warning of ICA stenosis, and this case can alert ophthalmologists to survey ICA stenosis in patients with PAMM.
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- 2021
16. Post-operative optical coherence tomography angiography features of chorioretinal folds resulting from pleomorphic adenoma of the lacrimal gland (PALG) of orbit- a case report
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Chau Yin Chen, Tsai Yueh-Ju, Nan-Ni Chen, and Chien-Hsiung Lai
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0301 basic medicine ,Adult ,Male ,medicine.medical_specialty ,Visual acuity ,genetic structures ,Adenoma, Pleomorphic ,Hyperopic shift ,Lacrimal gland ,Optical coherence tomography angiography (OCT-A) ,Pleomorphic adenoma ,03 medical and health sciences ,0302 clinical medicine ,Optical coherence tomography ,lcsh:Ophthalmology ,Ophthalmology ,Case report ,medicine ,Humans ,Fluorescein Angiography ,Chorioretinal folds ,Retina ,Retinal pigment epithelium ,medicine.diagnostic_test ,business.industry ,Choroid ,Lacrimal Apparatus ,Magnetic resonance imaging ,General Medicine ,medicine.disease ,eye diseases ,Pleomorphic adenoma of the lacrimal gland (PALG) ,030104 developmental biology ,medicine.anatomical_structure ,lcsh:RE1-994 ,030221 ophthalmology & optometry ,sense organs ,medicine.symptom ,business ,Orbit ,Tomography, Optical Coherence - Abstract
Background Chorioretinal fold (CFs) is a rare condition resulting from undulations in the choriocapillaris, Bruch's membrane, retinal pigment epithelium and occasionally neurosensory retina. It can be idiopathic or due to different etiologies. The use of spectral-domain optical coherence tomography (SD-OCT) has increased the diagnosis of CFs and helped in differentiation from other etiologies. Recently, optical coherence tomography angiography (OCT-A) emerged as a non-invasive imaging technique allowing visualization of the individual layers of microvasculature of the retina and the choroid by comparing consecutive B-scans. We described a rare case of pleomorphic adenoma of the lacrimal gland (PALG) causing hyperopic shift and CFs with the new OCT-A technology, getting deeper insight into vascular changes of this disease. Case presentation A 40-year-old Asian man experienced progressive blurred vision in his right eye over 6 months. The patient’s initial axial lengths were 25.55 mm in the right eye and 28.13 mm in the left eye. Fundus examination in the right eye revealed oblique CFs as well as the SD-OCT displayed. Magnetic resonance imaging showed intraconal mass extended from superior temporal side of the right orbit. The patient then received tumor removal surgery through lateral orbitotomy and histopathology confirmed a pleomorphic adenoma of the orbit. The patient had regular follow-up for 1 year. His best corrected visual acuity markedly improved from 20/50 to 20/20 with nearly stationary AXL. We performed OCT-A at one year after the surgery, which showed early visualization of deep choroidal vessels. The scleral remodeling due to mass effect of retrobulbar tumor also caused displacement of the deep large choroidal vessels over the superior macular area even after tumor removal. Conclusions We reported a rare case of PALG with hyperopic shift and CFs as initial presentation. Surgical removal of the tumor partially resolved the CFs and contributes to impressive visual acuity recovery. The use of OCT-A provided a deeper insight to vascular architecture changes resulting from scleral remodeling after long-term tumor compression.
- Published
- 2020
17. Inhibition of Corneal Neovascularization with the Combination of Bevacizumab and Plasmid Pigment Epithelium-Derived Factor-Synthetic Amphiphile INTeraction-18 (p-PEDF-SAINT-18) Vector in a Rat Corneal Experimental Angiogenesis Model
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Ching-Hsein Chen, Chia-Hui Hung, Miao-Fen Chen, Chien-Hsiung Lai, Lin-Cheng Yang, Li-Ju Lai, Chung-Yi Chen, San-Ni Chen, and Chien-Neng Kuo
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bevacizumab ,PEDF ,VEGF ,bFGF ,cornea ,angiogenesis ,SAINT-18 ,Biology (General) ,QH301-705.5 ,Chemistry ,QD1-999 - Abstract
Bevacizumab, a 149-kDa protein, is a recombinant humanized monoclonal antibody to VEGF. PEDF, a 50-kDa glycoprotein, has demonstrated anti-vasopermeability properties. In this study, we demonstrated that the combination of bevacizumab and plasmid pigment epithelium-derived factor-synthetic amphiphile INTeraction-18 (p-PEDF-SAINT-18) has a favorable antiangiogenic effect on corneal NV. Four groups (Group A: 0 μg + 0 μg, B: 0.1 μg + 0.1 μg, C: 1 μg + 1 μg, and D: 10 μg + 10 μg) of bevacizumab + p-PEDF-SAINT-18 were prepared and implanted into the rat subconjunctival substantia propria 1.5 mm from the limbus on the temporal side. Then, 1 μg of p-bFGF-SAINT-18 was prepared and implanted into the rat corneal stroma 1.5 mm from the limbus on the same side. The inhibition of NV was observed and quantified from days 1 to 60. Biomicroscopic examination, western blot analysis and immunohistochemistry were used to analyze the 18-kDa bFGF, 50-kDa PEDF and VEGF protein expression. No inhibition activity for normal limbal vessels was noted. Subconjunctival injection with the combination of bevacizumab and p-PEDF-SAINT-18 successfully inhibited corneal NV. The bFGF and PEDF genes were successfully expressed as shown by western blot analysis, and a mild immune response to HLA-DR was shown by immunohistochemistry. We concluded that the combination of bevacizumab and p-PEDF-SAINT-18 may have more potent and prolonged antiangiogenic effects, making it possible to reduce the frequency of subconjunctival.Bevacizumab, a 149-kDa protein, is a recombinant humanized monoclonalantibody to VEGF. PEDF, a 50-kDa glycoprotein, has demonstrated anti-vasopermeabilityproperties. In this study, we demonstrated that the combination of bevacizumaband plasmid pigment epithelium-derived factor-synthetic amphiphile INTeraction-18(p-PEDF-SAINT-18) has a favorable antiangiogenic effect on corneal NV. Four groups(Group A: 0 μg + 0 μg, B: 0.1 μg + 0.1 μg, C: 1 μg + 1 μg, and D: 10 μg + 10 μg) ofbevacizumab + p-PEDF-SAINT-18 were prepared and implanted into the ratsubconjunctival substantia propria 1.5 mm from the limbus on the temporal side. Then, 1 μgof p-bFGF-SAINT-18 was prepared and implanted into the rat corneal stroma 1.5 mm fromthe limbus on the same side. The inhibition of NV was observed and quantified from days1 to 60. Biomicroscopic examination, western blot analysis and immunohistochemistry wereused to analyze the 18-kDa bFGF, 50-kDa PEDF and VEGF protein expression. Noinhibition activity for normal limbal vessels was noted. Subconjunctival injection with thecombination of bevacizumab and p-PEDF-SAINT-18 successfully inhibited corneal NV.The bFGF and PEDF genes were successfully expressed as shown by western blot analysis,and a mild immune response to HLA-DR was shown by immunohistochemistry. Weconcluded that the combination of bevacizumab and p-PEDF-SAINT-18 may have morepotent and prolonged antiangiogenic effects, making it possible to reduce the frequency ofsubconjunctival bevacizumab administration combined with a relatively safe profile andlow toxicity.
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- 2013
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18. Optical Coherence Tomographic Patterns as Predictors of Structural Outcome After Intravitreal Ranibizumab in Diabetic Macula Edema
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Pei Lun Wu, Nan Ni Chen, Ching Lung Chen, Wei Dar Chen, Chien Neng Kuo, Chien Hsiung Lai, Pei Chen Wu, Jou Chen Huang, and Chau Yin Chen
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medicine.medical_specialty ,genetic structures ,medicine.diagnostic_test ,business.industry ,Diabetic macular edema ,Retrospective cohort study ,medicine.disease ,eye diseases ,Serous Retinal Detachment ,Coronary artery disease ,03 medical and health sciences ,Ophthalmology ,0302 clinical medicine ,Optical coherence tomography ,Edema ,030221 ophthalmology & optometry ,medicine ,sense organs ,Intravitreal ranibizumab ,medicine.symptom ,business ,Macular edema ,030217 neurology & neurosurgery - Abstract
Background/Objectives The purpose of this study was to present an association between the treatment response of diabetic macular edema (DME) to intravitreal ranibizumab (IVR) injections and different morphology patterns using spectral domain optical coherence tomography (SD-OCT). Subjects/Methods This retrospective study included 216 eyes of 142 subjects who received IVR for DME and were observed for at least 2 years. Medical charts and SD-OCT images of consecutive patients were reviewed at baseline, 1, 3, 6, 12, and 24 months after first IVR treatment. The OCT patterns were characterized as diffuse retinal thickening (DRT), cystoid macular edema (CME), serous retinal detachment (SRD), and vitreomacular interface abnormalities (VMIAs). All patients were classified into four groups based on the OCT findings. Results For a total of 216 eyes, 36 eyes were classified into the DRT group, 76 in the CME group, 42 in the SRD group, and 62 in the VMIA group. There were significant central macula thickness (CMT) improvements in all groups at the 1st month and the 2nd year, except for the DRT group at the 2nd year. Patients with OCT findings of hyperreflective dots (HRDs), metabolic parameters of hyperlipidemia, and coronary artery disease (CAD) had significantly less improvements in CMT at 2-year follow-up (P=0.029, 0.007
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- 2020
19. Postoperative Mycobacteroides abscessus subsp. abscessus endophthalmitis: Clinical analysis of 12 clustered adults and a proposed therapeutic algorithm
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Sheng Min Hsu, Ching Lung Chen, Yu Ti Teng, Chun Chieh Lai, Jia Horung Hung, Chien Hsiung Lai, Fu Chin Huang, Chau Yin Chen, Shih Hao Wang, Po Lin Chen, Sung Huei Tseng, Cheng Lin Wu, Wen Chien Ko, Sheng Hsiang Lin, and Evelyn Jou Chen Huang
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Male ,0301 basic medicine ,genetic structures ,medicine.medical_treatment ,lcsh:QR1-502 ,Vitrectomy ,Eye ,lcsh:Microbiology ,Postoperative Complications ,0302 clinical medicine ,Endophthalmitis ,Immunology and Allergy ,030212 general & internal medicine ,Stage (cooking) ,Aged, 80 and over ,Mycobacterium abscessus ,Clinical pathology ,Hazard ratio ,Nontuberculous Mycobacteria ,General Medicine ,Middle Aged ,Anti-Bacterial Agents ,Infectious Diseases ,medicine.anatomical_structure ,Female ,Algorithms ,Adult ,Microbiology (medical) ,Pars plana ,medicine.medical_specialty ,Adolescent ,030106 microbiology ,Taiwan ,Mycobacterium Infections, Nontuberculous ,Microbial Sensitivity Tests ,Young Adult ,03 medical and health sciences ,Clarithromycin ,medicine ,Humans ,Amikacin ,Aged ,General Immunology and Microbiology ,business.industry ,Cataract surgery ,medicine.disease ,Surgery ,Mycobacteroides abscessus subsp. abscessus ,Complication ,business - Abstract
Purpose: Postoperative endophthalmitis caused by nontuberculous mycobacterium is a rare but devastating complication after intraocular surgery. However, optimal treatment strategies remain undetermined in view of its rarity. Methods: We investigated the cases of culture-proven postoperative Mycobacteroides abscessus subsp. abscessus endophthalmitis in southern Taiwan, focusing on clinical manifestations and microbiological study, and aimed to describe clinical staging and to propose a therapeutic modality for this disease. Results: Twelve cases, including two published cases, were treated in two medical centers in southern Taiwan between Aug. 2011 and Dec. 2016, and all ever received cataract surgery at one clinic. Their disease courses could be categorized into four distinct stages, i.e., the initial, quiescent, recurrent, and end stage, and some cases experienced 1–4 cycles of quiescent-recurrent stages. Although all eyes ended up with phthisis or were eviscerated, the affected eyes receiving pars plana vitrectomy (PPV) tended to become quiescent and survived longer than those without PPV (adjusted hazard ratio: 13.9, p
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- 2020
20. Management of polypoidal choroidal vasculopathy: Experts consensus in Taiwan
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Shih-Jen Chen, Wen-Lu Chen, Fenq-Lih Lee, Cheng-Kuo Cheng, Sheng Min Hsu, Lee-Jen Chen, Chi-Chun Lai, San-Ni Chen, Ling Yeung, Chien-Hsiung Lai, Chang-Hao Yang, Tsung-Tien Wu, Chung-May Yang, De Kuang Hwang, and Jiann-Torng Chen
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Vascular Endothelial Growth Factor A ,medicine.medical_specialty ,Consensus ,Visual acuity ,Fundus Oculi ,Taiwan ,Visual Acuity ,Angiogenesis Inhibitors ,Disease ,Fundus (eye) ,complex mixtures ,Macular Degeneration ,Polyps ,Health care ,medicine ,Humans ,Fluorescein Angiography ,Intensive care medicine ,lcsh:R5-920 ,business.industry ,Disease Management ,Choroid Diseases ,General Medicine ,Macular degeneration ,medicine.disease ,eye diseases ,Clinical trial ,Choroidal neovascularization ,Photochemotherapy ,National health insurance ,Intravitreal Injections ,medicine.symptom ,lcsh:Medicine (General) ,business ,Tomography, Optical Coherence - Abstract
Polypoidal choroidal vasculopathy (PCV) is a prevalent retinal disease predominantly occurs in Asians that shares some similarities seen in neovascular age-related macular degeneration. Recent large multicenter clinical trials on intravitreal anti-vascular endothelial growth factor (VEGF) agents and photodynamic therapy (PDT) have shed lights on the management of PCV. The Taiwan National Health Insurance had granted limited anti-VEGF agents and PDT for patients with PCV after the approval of required data submission, especially fundus angiography, optical coherence tomography, and visual acuity. In order to best utilize these limited resources for the patients, an expert meeting was held to provide updated Taiwan consensus recommendations for the management of PCV, including initial therapy selection, assessment of treatment response, re-treatment/rescue treatment, and determination of treatment extension/follow-up schedule. An algorithm for treatment allocation under both initial and re-treatment setting was proposed. Further mechanistic and clinical studies are required to investigate the prognostic factors and optimal treatment protocols that will improve healthcare quality and reduce burden of disease and treatment for patients with PCV. Keywords: Choroidal neovascularization, PCV, Photodynamic therapy, Vascular endothelial growth factors, Wet age-related macular degeneration
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- 2020
21. Optical coherence tomography and imaging biomarkers as outcome predictors in diabetic macular edema treated with dexamethasone implant
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Hung-Da Chou, Cheng-Hsiu Wu, Wei-Yu Chiang, Nan-Ni Chen, Yih-Shiou Hwang, Kuan-Jen Chen, Chien-Hsiung Lai, Pei-Chang Wu, Yi-Hao Chen, Ling Yeung, Shih-Chieh Shao, Chi-Chun Lai, and Wei-Chi Wu
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Drug Implants ,Multidisciplinary ,Diabetic Retinopathy ,genetic structures ,Visual Acuity ,eye diseases ,Dexamethasone ,Macular Edema ,Treatment Outcome ,Intravitreal Injections ,Diabetes Mellitus ,Humans ,sense organs ,Glucocorticoids ,Biomarkers ,Tomography, Optical Coherence ,Retrospective Studies - Abstract
In this retrospective, multicenter study, we determined the predictive value of imaging biomarkers in diabetic macular edema (DME) outcomes following dexamethasone (DEX) implant(s). Sixty-seven eyes of 47 patients’ best-corrected visual acuity (BCVA) and central foveal thickness (CFT) on optical coherence tomography (OCT) before and after intravitreal DEX implants were evaluated. Baseline imaging biomarkers were graded using fundus photography and OCT, and the predictive value of biomarkers for significant treatment effects at six months was analyzed. Six months after 2.0 ± 0.8 (mean ± SD) DEX implants, 35 (52%) and 16 (24%) eyes had CFT reduction ≥ 10% from baseline and decreased to
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- 2021
22. Sex-Specific Effect of Obesity on Epiblepharon in Different Age Groups: A Case-Control Study
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Jin-Jhe Wang, Chien-Hsiung Lai, Ting-Yu Kuo, Meng-Hung Lin, Yao-Hsu Yang, and Chau-Yin Chen
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Male ,Pediatric Obesity ,Adolescent ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,Overweight ,Body Mass Index ,Case-Control Studies ,Prevalence ,Humans ,Female ,epiblepharon ,body mass index ,obesity ,overweight ,sex-specific difference ,Child ,Retrospective Studies - Abstract
Background: Obesity has been regarded as a risk factor for epiblepharon. This study aims to investigate the age- and sex-specific relationship between epiblepharon and obesity in children.Methods: A retrospective case-control study was conducted using Chang Gung Research Database. Children ≤ 18 years of age with epiblepharon were identified from 1 January 2009 to 31 December 2019. Children were classified into four groups: underweight, normal, overweight and obese groups.Results: A total of 513 patients and 1026 controls (57.7% of males) aged 1 to 18 matched by sex and age were included in the analysis. The median body mass index (BMI) of children with epiblepharon was significantly higher than that of children without epiblepharon (p < 0.001). In the subgroup analysis, among boys aged 4 to 9 years, the BMI in boys with epiblepharon was significantly higher than that in boys without epiblepharon (p < 0.05) and the risk of epiblepahron in overweight and obese boys was significantly higher than in non-overweight boys (OR = 1.74, 95% CI = 1.07-2.82; OR = 3.06, 95% CI = 1.56-6.03). On the other hand, among girls aged 13 to 18 years, the BMI in adolescent girls with epiblepharon was significantly higher than that in the control group (p < 0.05) and overweight and obese girls had statistically higher risk of persistent epiblepharon than non-overweight girls (OR =3.70, 95% CI = 1.38-9.97).Conclusions: The association between obesity and epiblepharon varies in strength according to age in a sex-specific manner.
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- 2022
23. Using A modified quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal to correct involutional lower eyelid entropion in Asians
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Chau-Yin Chen, Chien-Hsiung Lai, Yen-Chang Chu, Yi-Lin Liao, Jin-Jhe Wang, Wei-Dar Chen, and Yueh-Ju Tsai
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General Medicine - Abstract
To propose a modified Quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal which corrects involutional lower eyelid entropion, and to validate the procedure as an adequate surgical management according to anatomical deformities and pathogenesis of Asian patients.Ninety-five patients (45 men, 50 women; 108 eyelids [55 right eyes, 53 left eyes]) who underwent this modified surgical procedure with a minimum follow-up period of 2 months were examined. All pre- and post-operative evaluations and surgical procedure were performed exclusively from the same oculoplastic surgeon. Postoperative results, recurrence rate, and complications were assessed.The mean follow-up period was 13.33 months (range, 2-67 months). Of the 108 eyelids, 4 developed recurrent entropion with trichiasis, corresponding to an overall recurrence rate of 3.70%. No major complications, such as overcorrection (ectropion), symblepharon, infection, or wound dehiscence, occurred during the follow-up period after surgery. Of these 4 eyelids exhibiting recurrence, 3 occurred within 10 months and 1 occurred 49 months after surgery. Three recurrent patients received secondary surgery for re-correction with successful results.The modified Quickert procedure combined with prolapsed fat and preseptal orbicularis muscle removal not only demonstrated safety and effectiveness, but also led to low rate of recurrence and complications. It could be a strategy for correction of involutional entropion in Asian patients.
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- 2021
24. Pre-eclampsia/Eclampsia as a Risk Factor of Noninfectious Uveitis Among Postdelivery Women
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Wei-Dar Chen, Li-Ju Lai, Chung-Yuan Lee, Yao-Hsu Yang, Chien-Hsiung Lai, and Chia-Yen Liu
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Adult ,medicine.medical_specialty ,Population ,Taiwan ,Rate ratio ,Cohort Studies ,Uveitis ,Young Adult ,Pre-Eclampsia ,Pregnancy ,Risk Factors ,medicine ,Humans ,Eclampsia ,Cumulative incidence ,Risk factor ,education ,Retrospective Studies ,education.field_of_study ,Obstetrics ,business.industry ,Incidence ,Incidence (epidemiology) ,Hazard ratio ,Retrospective cohort study ,Delivery, Obstetric ,Ophthalmology ,Female ,business ,Follow-Up Studies ,Cohort study - Abstract
Purpose We sought to analyze the incidence and risk of noninfectious uveitis (NIU) among postdelivery women with a history of pre-eclampsia/eclampsia (PEE). Design Population-based retrospective matched cohort study. Methods All participant data were retrieved from the Longitudinal Health Insurance Database 2005. Two thousand seventy-three postdelivery women ≥20 years of age were diagnosed with PEE between January 1, 1997 and December 31, 2012 and were included in the study. We traced the occurrence of NIU during 5 years of follow-up. The primary outcome measure was the occurrence of NIU with the use of anti-inflammatory drugs and adjudication by an ophthalmologist. Results NIU occurred in 14 of 2073 (0.7%) postdelivery women with PEE. The incidence rate of NIU was 1.5 and 0.5 per 1000 person-years among postdelivery women with and without PEE, respectively (incidence rate ratio 2.96 [95% confidence interval 1.48–5.90]; P = .002). Postdelivery women with PEE demonstrated a significant increase in the cumulative incidence of NIU compared with those without PEE (P = .001). The risk of the occurrence of NIU was significantly higher in the PEE group than in the non-PEE group (adjusted hazard ratio 2.96 [95% CI 1.48–5.92]; P = .002) after adjusting for age, income, urbanization, and comorbidities. Conclusions This is the first study to substantiate an association between PEE and NIU. Our results suggest that PEE could be a potential risk factor for the occurrence of NIU among postdelivery women.
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- 2019
25. Change of Optical Coherence Tomography Morphology and Associated Structural Outcome in Diabetic Macular Edema after Ranibizumab Treatment
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Nan-Ni Chen, Chien-Hsiung Lai, Chai-Yi Lee, Chien-Neng Kuo, Ching-Lung Chen, Jou-Chen Huang, Pei-Chen Wu, Pei-Lun Wu, and Chau-Yin Chen
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optical coherence tomography ,diabetic macular edema ,antivascular endothelial growth factors ,vitreomacular interface abnormality ,genetic structures ,Medicine (miscellaneous) ,sense organs ,eye diseases - Abstract
(1) Background: To investigate the correlation between therapeutic outcome and morphologic changes for diabetic macular edema (DME) after intravitreal injection of ranibizumab (IVIR). (2) Methods: This retrospective study included 228 eyes received IVIR for DME. Each participant was traced for two years after the initial IVIR, while the data of ophthalmic examination, optical coherence tomography (OCT) image, and systemic diseases were collected. The study population was categorized into different subgroups according to the existence of OCT morphologic change and the initial OCT morphologic pattern, including diffuse retinal thickening (DRT), cystoid macular edema (CME), serous retinal detachment (SRD), and vitreomacular interface abnormalities (VMIAs). The primary outcomes were the baseline best-corrected visual acuity (BCVA) and central macular thickness (CMT) during a two-year study period. The distribution of OCT morphologic change and its relation to primary outcome were analyzed. (3) Results: Comparing the 42 eyes (18.4%) with OCT morphological changes to another 186 eyes (81.6%) without such alteration, the former showed a poorer baseline BCVA (0.84 ± 0.39 vs. 0.71 ± 0.36, p = 0.035), worse final BCVA (0.99 ± 0.44 vs. 0.67 ± 0.30, p = 0.001), and thicker final CMT (354.21 ± 89.02 vs. 305.33 ± 83.05, p = 0.001). Moreover, the VMIA developed in 14.9% of all DME patients presenting the most common morphologic change among DRT, CME, and SRD. Besides, the presence of stroke was independently correlated to the morphologic change (adjusted odds ratio [aOR]: 6.381, 95% confidence interval (CI): 1.112–36.623, p = 0.038). (4) Conclusions: The change of OCT morphology in DME patients receiving IVIR was correlated to worse structural and visual outcome while the formation of VMIA most commonly occurred after initial treatment.
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- 2022
26. The clinical presentation and treatment of an invasive conjunctival squamous spindle cell carcinoma.
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Chau-Yin Chen, Sheng-Wen Wang, Chien-Hsiung Lai, Hui-Chieh Chuang, Ying-Yu Lin, and Jin-Jhe Wang
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Ocular surface squamous neoplasia represents neoplastic epithelial abnormalities of conjunctiva and cornea, ranging from squamous dysplasia to invasive squamous cell carcinoma and is both sight- and life-threatening. Squamous spindle cell carcinoma (SSCC) of conjunctiva is a rare variant with distinct behavior which is thought to be more locally aggressive. We describe an 83-year-old woman with a progressively enlarging huge SSCC in her right eye over the past 2 years. The tumor bulged out with local invasion into intraocular and orbital cavities. Wide excision of the tumor with frozen section control was performed. After surgery, topical 0.03% mitomycin C was given as adjuvant therapy. At 40-month follow-up, the lesion site showed no evidence of local recurrence. This case provides a valuable and complete experience of the clinical presentation for the progression and treatment of this rare disease. [ABSTRACT FROM AUTHOR]
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- 2022
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27. The clinical presentation and treatment of an invasive conjunctival squamous spindle cell carcinoma
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Chien-Hsiung Lai, Hui-Chieh Chuang, Sheng-Wen Wang, Ying-Yu Lin, Jin-Jhe Wang, and Chau-Yin Chen
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Ophthalmology ,Pathology ,medicine.medical_specialty ,business.industry ,medicine ,Presentation (obstetrics) ,business ,medicine.disease ,Spindle cell carcinoma - Published
- 2022
28. Firework-Related Chorioretinitis Sclopetaria
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Wei-Dar, Chen and Chien-Hsiung, Lai
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Ophthalmology ,Chorioretinitis ,Humans ,Wounds, Gunshot - Published
- 2021
29. Anti-angiogenic effect of hexahydrocurcumin in rat corneal neovascularization
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San-Ni Chen, Chien-Hsing Lee, Chien-Neng Kuo, Jou-Cheng Huang, Li-Ju Lai, Chung-Yi Chen, Chien-Hsiung Lai, Chia-Hui Hung, and Ching-Hsein Chen
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Male ,Vascular Endothelial Growth Factor A ,0301 basic medicine ,Pathology ,medicine.medical_specialty ,Curcumin ,Angiogenesis ,medicine.medical_treatment ,Blotting, Western ,Angiogenesis Inhibitors ,Fibroblast growth factor ,Rats, Sprague-Dawley ,03 medical and health sciences ,0302 clinical medicine ,Western blot ,Stroma ,Animals ,Medicine ,Corneal Neovascularization ,medicine.diagnostic_test ,business.industry ,Growth factor ,HLA-DR Antigens ,medicine.disease ,Rats ,Disease Models, Animal ,Ophthalmology ,Vascular endothelial growth factor A ,030104 developmental biology ,Corneal neovascularization ,030221 ophthalmology & optometry ,Immunohistochemistry ,Fibroblast Growth Factor 2 ,business ,Conjunctiva - Abstract
This study was to investigate the anti-angiogenic effect of hexahydrocurcumin (HHC) to evaluate gene (p-basic fibroblast growth factor (bFGF)-SAINT-18 & p-vascular endothelial growth factor (VEGF)-SAINT-18 complex)-induced corneal neovascularization (CorNV) in rats. CorNV was induced in 24 eyes of 24 rats. Four groups (Group A: 0 μg, B: 0.01 μg, C: 0.1 μg, and D: 1 μg) of HHC were prepared and implanted into the rat subconjunctival substantia propria 1.5 mm from the limbus at temporal side. The 1 μg of p-bFGF-SAINT-18 & p-VEGF-SAINT-18 complex were prepared and implanted into the rat corneal stroma 1.5 mm from the limbus at the same side. Inhibition of CorNV was observed and quantified from day 1 to day 60. bFGF and VEGF protein expression were analyzed by biomicroscopic examination, western blot analysis, and immunohistochemistry. Subconjunctival injection by 1 μg HHC successfully inhibited gene-induced CorNV in rats. bFGF and VEGF protein expression were reduced after 6 days. Meanwhile, the reduction of HLA-DR expression was detected. Our study showed that the HHC might provide an important anti-angiogenesis factor to inhibit CorNV development at the corneal experimental angiogenesis model.
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- 2017
30. Resolution of Unilateral Dome-Shaped Macula With Serous Detachment After Treatment of Topical Carbonic Anhydrase Inhibitors
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Chien Hsiung Lai, Nan Ni Chen, and Ching Lung Chen
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medicine.medical_specialty ,genetic structures ,Macular Edema ,Serous Retinal Detachment ,Optical coherence tomography ,Ophthalmology ,Carbonic anhydrase ,medicine ,Humans ,Normal axial length ,Macula Lutea ,Carbonic Anhydrase Inhibitors ,Child ,Retina ,biology ,medicine.diagnostic_test ,business.industry ,Subretinal Fluid ,Retinal Detachment ,eye diseases ,Serous fluid ,Treatment Outcome ,medicine.anatomical_structure ,biology.protein ,Female ,sense organs ,Subretinal fluid ,business ,After treatment - Abstract
Dome-shaped macula (DSM) is a morphological feature outlined through the use of optical coherence tomography and characterized by an inward or anterior deviation of the macula with respect to chorioretinal concavity. Currently, there is no validated therapy for serous retinal detachment secondary to DSM. The authors report a case of childhood unilateral DSM in a hyperopic eye with normal axial length that was complicated with subretinal fluid (SRF). Topical carbonic anhydrase inhibitors may be an acceptable and safer option for patients presented with nonresolving SRF associated with DSM. Further randomized controlled trials are necessary to confirm the efficacy of this therapeutic approach. [ Ophthalmic Surg Lasers Imaging Retina . 2019;50:e218–e221.]
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- 2019
31. Rapid regression of cystoid macular edema associated with cytomegalovirus retinitis in adult acute myeloid leukemia by intravitreal methotrexate combined with oral valganciclovir: A case report with comparison of binocular outcome
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Chih-Ping Wang, Chien-Hsiung Lai, Chien-Neng Kuo, Chih-Chien Chen, and Evelyn Jou-Chen Huang
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Ganciclovir ,medicine.medical_specialty ,Visual acuity ,genetic structures ,medicine.medical_treatment ,valganciclovir ,Retinitis ,Case Report ,Hematopoietic stem cell transplantation ,methotrexate ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Macular edema ,cytomegalovirus retinitis ,business.industry ,Immunosuppression ,Valganciclovir ,medicine.disease ,eye diseases ,Surgery ,Ophthalmology ,hematopoietic stem cell transplantation ,030221 ophthalmology & optometry ,Cytomegalovirus retinitis ,medicine.symptom ,business ,cystoid macular edema ,030215 immunology ,medicine.drug - Abstract
Cytomegalovirus (CMV) retinitis is a late complication of organ and hematopoietic stem cell transplant, the risk of which depends on the degree of immunosuppression. With the institution of preemptive ganciclovir therapy early after transplant, most patients survive episodes of life-threatening CMV infection during the early months (usually the first 3 months) after transplant and hence late onset of CMV disease, such as CMV retinitis, is being recognized more frequently. Direct involvement of the macula or optic head remains the leading cause of visual loss in patients with CMV retinitis, but there are few studies investigating the management of this condition.Herein, we present the case of 28-year-old man who had acute myeloid leukemia and developed CMV retinitis with bilateral cystoid macular edema and optic swelling in the right eye 6 months after bone marrow transplant. He received treatment with intravitreal methotrexate in the right eye in combination with oral valganciclovir. Visual acuity improved 1 month after four weekly injections of intravitreal methotrexate 400 μg/0.1 mL. Resolved disc swelling and regression of macular edema were also observed. By comparing binocular outcome, we present our findings and discuss the possible efficacy and safety of this treatment with respect to regression of anatomical damage and improvement in visual acuity.
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- 2016
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32. The relationship between age, axial length and retinal nerve fiber layer thickness in the normal elderly population in Taiwan: The Chiayi eye study in Taiwan
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Pei-Chen Wu, Pei-Lun Wu, Evelyn Jou-Chen Huang, Chien-Neng Kuo, Chien-Hsiung Lai, Yin-Chi King, Shin-Hua Wu, Ching-Lung Chen, and Chau-Yin Chen
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0301 basic medicine ,Male ,Aging ,Eye Diseases ,genetic structures ,Nerve fiber layer ,lcsh:Medicine ,Alzheimer's Disease ,Diagnostic Radiology ,Geographical Locations ,chemistry.chemical_compound ,0302 clinical medicine ,Nerve Fibers ,Elderly ,Animal Cells ,Medicine and Health Sciences ,lcsh:Science ,Tomography ,Aged, 80 and over ,Neurons ,Multidisciplinary ,medicine.diagnostic_test ,Radiology and Imaging ,Age Factors ,Neurodegenerative Diseases ,Axial length ,medicine.anatomical_structure ,Neurology ,Optic nerve ,Female ,Anatomy ,Cellular Types ,Tomography, Optical Coherence ,Research Article ,medicine.medical_specialty ,Asia ,Imaging Techniques ,Taiwan ,Spectral domain ,Research and Analysis Methods ,Retina ,03 medical and health sciences ,Optical coherence tomography ,Ocular System ,Diagnostic Medicine ,Ophthalmology ,Elderly population ,Mental Health and Psychiatry ,medicine ,Humans ,Aged ,business.industry ,lcsh:R ,Biology and Life Sciences ,Retinal ,Optic Nerve ,Cell Biology ,eye diseases ,030104 developmental biology ,chemistry ,Age Groups ,Geriatrics ,Cellular Neuroscience ,People and Places ,030221 ophthalmology & optometry ,Eyes ,Population Groupings ,Dementia ,lcsh:Q ,sense organs ,business ,Head ,Neuroscience - Abstract
Aims To interpret how the thickness of the peripapillary retinal nerve fiber layer (RNFL) changes with increasing age, axial length, or anterior chamber depth as measured by spectral domain optical coherence tomography (OCT) in the normal elderly population in Taiwan. Methods A total of 82 volunteers (143 eyes) were enrolled. Generalized estimating equations were used to evaluate the correlation. Results The RNFL was significantly thinner in the superonasal (p = 0.004), inferotemporal (p = 0.046), and temporolower (p = 0.009) segments with age. The same trend was also observed in the superotemporal (p = 0.330) segment, although it was not statistically significant. The global RNFL thickness decreased by 4.97 μm per decade (β = -0.497; p = 0.021), and thinning was significant in the superonasal (-9.90 μm per decade, p < 0.001) and temporolower (-6.78 μm per decade, p < 0.001) segments; the same trend showed borderline significance in the superotemporal (-6.96 μm per decade, p = 0.073) and inferotemporal (-7.23 μm per decade, p = 0.059) segments. In eyes with longer axial length, the RNFLs significantly decreased in the non-temporal segments. Global RNFL thickness decreased by 3.086 μm for each additional millimeter of axial length (β = -3.086; p < 0.001). Conclusions Changes in RNFL thickness were correlated with age in the superonasal, superotemporal, inferotemporal, and temporolower segments, and were correlated with axial length in the non-temporal segments. Anterior chamber depth was not correlated with RNFL thickness.
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- 2018
33. Retinal vascular complications associated with interferon-ribavirin therapy for chronic hepatitis C: A population-based study
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Ying‐Chi King, Yao-Hsu Yang, Chien-Hsiung Lai, Chia-Yen Liu, and Pau-Chung Chen
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Adult ,Male ,medicine.medical_specialty ,Epidemiology ,Taiwan ,Comorbidity ,Antiviral Agents ,Retina ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Retinal Diseases ,Risk Factors ,Internal medicine ,Diabetes mellitus ,Ribavirin ,medicine ,Humans ,Pharmacology (medical) ,Retrospective Studies ,business.industry ,Incidence (epidemiology) ,Incidence ,Hazard ratio ,Interferon-alpha ,Retinal Vessels ,Hepatitis C, Chronic ,Middle Aged ,medicine.disease ,Confidence interval ,Cotton wool spots ,chemistry ,Cohort ,Hypertension ,030221 ophthalmology & optometry ,030211 gastroenterology & hepatology ,Drug Therapy, Combination ,Female ,medicine.symptom ,business ,Retinopathy - Abstract
PURPOSE To investigate the incidence of retinal vascular complications and risk factors in patients with chronic hepatitis C receiving interferon-ribavirin therapy in Taiwan. METHODS By using the Taiwan National Health Insurance Research Database, we compared the incidence of retinal vascular complications between patients receiving and not receiving interferon-ribavirin treatment. The exposure and nonexposure groups were randomly 1:1 frequency-matched according to age, sex, income, urbanization level, hypertension, and diabetes. Incidence of each retinal vascular complication and hazard ratios were assessed in the follow-up evaluation. RESULTS Of the sample of 4736 patients, a total of 182 patients (3.84%) developed retinopathy during the follow-up period, of which 110 patients (4.65%) received interferon-ribavirin therapy and 72 patients (3.04%) did not receive interferon-ribavirin therapy. After multivariate adjustments, the risk of retinopathy during the follow-up period was 1.533 (95% confidence interval [CI], 1.139-2.064; P = .0048) times higher in patients receiving interferon-ribavirin therapy than in those in the comparison cohort not receiving the therapy. Patients with hypertension compared with those without it (adjusted hazard ratio, 1.530; 95% CI, 1.069-2.135; P = .0125) also had an increased risk of retinopathy. CONCLUSIONS Interferon-ribavirin therapy was associated with a 53.3% increased risk of retinal vascular complications compared with not receiving the therapy. Regular ophthalmologic examination is essential for patients receiving interferon-ribavirin, particularly those with hypertension.
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- 2017
34. ANGIOGRAPHIC SUBTYPES OF POLYPOIDAL CHOROIDAL VASCULOPATHY IN TAIWAN: A Prospective Multicenter Study
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Chien-Hsiung Lai, Ching-Lung Chen, An-Ning Chao, Nan-Kai Wang, Yih-Shiou Hwang, Chien-Neng Kuo, Wei-Chi Wu, Kuan-Jen Chen, Chi-Chun Lai, and Ling Yeung
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0301 basic medicine ,Male ,medicine.medical_specialty ,Visual acuity ,genetic structures ,Fundus Oculi ,Indocyanine green angiography ,Taiwan ,Visual Acuity ,complex mixtures ,Gastroenterology ,03 medical and health sciences ,chemistry.chemical_compound ,0302 clinical medicine ,Polyps ,Internal medicine ,medicine ,Humans ,Prospective Studies ,Fluorescein Angiography ,Aged ,Aged, 80 and over ,business.industry ,Choroid ,Incidence (epidemiology) ,Incidence ,Retinal Vessels ,Retinal ,General Medicine ,Choroid Diseases ,Macular degeneration ,medicine.disease ,eye diseases ,Surgery ,Ophthalmology ,030104 developmental biology ,Choroidal neovascularization ,Cross-Sectional Studies ,chemistry ,Multicenter study ,Hemorrhagic complication ,030221 ophthalmology & optometry ,Female ,sense organs ,medicine.symptom ,business ,Follow-Up Studies - Abstract
PURPOSE To determine the incidence and clinical characteristics of angiographic subtypes of polypoidal choroidal vasculopathy (PCV). METHODS It is a prospective, multicenter, cross-sectional study. Patients with newly diagnosed exudative macular degeneration are classified into PCV, age-related macular degeneration (AMD), and retinal angiomatous proliferation. Polypoidal choroidal vasculopathy is further classified into two subtypes depending on the presence (Type 1: polypoidal choroidal neovascularization) or absence (Type 2: typical PCV) of feeder vessels on indocyanine green angiography. RESULTS We enrolled 169 patients: 76 (45%) with PCV, 75 (44.4%) with AMD, and 14 (8.3%) with retinal angiomatous proliferation. Of the patients with PCV, 20 (26%) were classified as Type 1 PCV and 56 (74%) were classified as Type 2 PCV. The Type 1 PCV had a similar mean age compared to the AMD group (73.1 ± 9.6 vs. 75.6 ± 8.8 years, P = 0.281) and the Type 2 PCV (68.8 ± 9.6 years) was younger than the AMD group (P < 0.001). Type 1 PCV presented with worse visual acuity compared with the AMD. Both PCV subtypes had a higher incidence of hemorrhagic complications (85% and 75% respectively). CONCLUSION Type 2 PCV is more common than Type 1 PCV in Taiwan. Our results support the hypothesis that polypoidal choroidal neovascularization and typical PCV may be distinct entities.
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- 2017
35. The use of platelet transfusion in thrombocytopenic patients for phacoemulsification
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Chien-Hsiung Lai, Kuan-Der Lee, San-Ni Chen, Chien-Neng Kuo, Jou-Cheng Huang, and Tsung-Han Lee
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medicine.medical_specialty ,Visual acuity ,genetic structures ,business.industry ,medicine.medical_treatment ,thrombocytopenia ,cataract surgery ,Phacoemulsification ,Cataract surgery ,medicine.disease ,Thrombocytopenic purpura ,eye diseases ,Surgery ,Ophthalmology ,Platelet transfusion ,Blurred vision ,Anesthesia ,phacoemulsification ,medicine ,platelet transfusion ,Platelet ,medicine.symptom ,Adverse effect ,business - Abstract
Two elderly patients with histories of myelodysplastic syndrome and idiopathic thrombocytopenic purpura both suffered from blurred vision for a long time and asked for cataract surgery. Due to their extremely low platelet counts, 5000/μL and 6000/μL, respectively, we administrated 12-unit platelet transfusions each, 2 hours to the surgery. The operations were carried out smoothly, and there were no bleeding-associated complications during these operative procedures. Both patients were satisfied with their visual improvement at postoperative 1-week follow up with visual acuity of 0.8 and 1.0, respectively, and there was no adverse event reported. From these two cases, we suggested that in patients with thrombocytopenia, phacoemulsification cataract surgery can be performed with preoperative platelet transfusion, producing favorable results without any bleeding-associated complications.
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- 2014
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36. Bilateral central retinal vein occlusion as the first manifestation in chronic myeloid leukaemia
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Cih-En Huang, Chien-Hsiung Lai, Weidar Chen, and Evelyn Jou Chen Huang
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medicine.medical_specialty ,Visual acuity ,genetic structures ,business.industry ,General Medicine ,medicine.disease ,Chronic myeloid leukaemia ,eye diseases ,Left eye ,Acute onset ,Central retinal vein occlusion ,Blurred vision ,Ophthalmology ,Medicine ,sense organs ,medicine.symptom ,business - Abstract
A previously well 20 year old woman described bilateral acute onset blurred vision for two weeks. Visual acuity was 20/400 (right eye) and 20/200 (left eye). Funduscopy (fig …
- Published
- 2019
37. The epidemiology of patients with pterygium in southern Taiwanese adults: The Chiayi survey
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Pei-Chang Wu, Ching-Lung Chen, Pei-Lun Wu, Tsung-Hsien Chou, Chien-Hsiung Lai, and Hsu-Huei Weng
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medicine.medical_specialty ,business.industry ,Southern taiwan ,geographical variation ,Outdoor workers ,medicine.disease ,Logistic regression ,Smoking history ,Pterygium ,Surgery ,Ophthalmology ,risk factor ,Epidemiology ,medicine ,epidemiology ,pterygium ,Risk factor ,Rural area ,business ,Demography - Abstract
PurposeTo investigate patients with pterygium in different geographic regions and the associated risk factors in southern Taiwan.MethodsA clinical observation survey was conducted in Chiayi County, a rural area in southern Taiwan. The subjects aged 40 years and above underwent complete ocular examinations. Associated risks factors were evaluated, including gender, age, occupations, smoking, and geographical living regions by univariant and multivariant logistic regression analysis.ResultsA total of 2197 participants (790 male, 36.0%) from 44 different villages were evaluated. In these, 554 participants (25.2%) have either unilateral or bilateral pterygium. Age is associated with the percentage of pterygium, and those aged between 60 and 69 had the highest percentage of 30.1% (p
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- 2013
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38. Inhibition of Corneal Neovascularization with the Combination of Bevacizumab and Plasmid Pigment Epithelium-Derived Factor-Synthetic Amphiphile INTeraction-18 (p-PEDF-SAINT-18) Vector in a Rat Corneal Experimental Angiogenesis Model
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Chung-Yi Chen, Chia-Hui Hung, Chien-Hsiung Lai, Lin-Cheng Yang, Chien-Neng Kuo, Miao-Fen Chen, Ching-Hsein Chen, Li-Ju Lai, and San-Ni Chen
- Subjects
Male ,Vascular Endothelial Growth Factor A ,Pathology ,genetic structures ,Angiogenesis ,Gene Expression ,Angiogenesis Inhibitors ,Pyridinium Compounds ,lcsh:Chemistry ,Neovascularization ,Rats, Sprague-Dawley ,angiogenesis ,Cornea ,lcsh:QH301-705.5 ,Spectroscopy ,medicine.diagnostic_test ,General Medicine ,VEGF ,Recombinant Proteins ,Computer Science Applications ,medicine.anatomical_structure ,PEDF ,Immunohistochemistry ,Fibroblast Growth Factor 2 ,medicine.symptom ,medicine.drug ,Plasmids ,medicine.medical_specialty ,Bevacizumab ,bevacizumab ,Antibodies, Monoclonal, Humanized ,Transfection ,Catalysis ,Article ,Inorganic Chemistry ,Surface-Active Agents ,Western blot ,cornea ,medicine ,SAINT-18 ,Animals ,Corneal Neovascularization ,Nerve Growth Factors ,Physical and Theoretical Chemistry ,Eye Proteins ,Molecular Biology ,Serpins ,business.industry ,Organic Chemistry ,medicine.disease ,Molecular biology ,eye diseases ,Rats ,Disease Models, Animal ,lcsh:Biology (General) ,lcsh:QD1-999 ,bFGF ,Corneal neovascularization ,sense organs ,business - Abstract
Bevacizumab, a 149-kDa protein, is a recombinant humanized monoclonal antibody to VEGF. PEDF, a 50-kDa glycoprotein, has demonstrated anti-vasopermeability properties. In this study, we demonstrated that the combination of bevacizumab and plasmid pigment epithelium-derived factor-synthetic amphiphile INTeraction-18 (p-PEDF-SAINT-18) has a favorable antiangiogenic effect on corneal NV. Four groups (Group A: 0 μg + 0 μg, B: 0.1 μg + 0.1 μg, C: 1 μg + 1 μg, and D: 10 μg + 10 μg) of bevacizumab + p-PEDF-SAINT-18 were prepared and implanted into the rat subconjunctival substantia propria 1.5 mm from the limbus on the temporal side. Then, 1 μg of p-bFGF-SAINT-18 was prepared and implanted into the rat corneal stroma 1.5 mm from the limbus on the same side. The inhibition of NV was observed and quantified from days 1 to 60. Biomicroscopic examination, western blot analysis and immunohistochemistry were used to analyze the 18-kDa bFGF, 50-kDa PEDF and VEGF protein expression. No inhibition activity for normal limbal vessels was noted. Subconjunctival injection with the combination of bevacizumab and p-PEDF-SAINT-18 successfully inhibited corneal NV. The bFGF and PEDF genes were successfully expressed as shown by western blot analysis, and a mild immune response to HLA-DR was shown by immunohistochemistry. We concluded that the combination of bevacizumab and p-PEDF-SAINT-18 may have more potent and prolonged antiangiogenic effects, making it possible to reduce the frequency of subconjunctival.Bevacizumab, a 149-kDa protein, is a recombinant humanized monoclonalantibody to VEGF. PEDF, a 50-kDa glycoprotein, has demonstrated anti-vasopermeabilityproperties. In this study, we demonstrated that the combination of bevacizumaband plasmid pigment epithelium-derived factor-synthetic amphiphile INTeraction-18(p-PEDF-SAINT-18) has a favorable antiangiogenic effect on corneal NV. Four groups(Group A: 0 μg + 0 μg, B: 0.1 μg + 0.1 μg, C: 1 μg + 1 μg, and D: 10 μg + 10 μg) ofbevacizumab + p-PEDF-SAINT-18 were prepared and implanted into the ratsubconjunctival substantia propria 1.5 mm from the limbus on the temporal side. Then, 1 μgof p-bFGF-SAINT-18 was prepared and implanted into the rat corneal stroma 1.5 mm fromthe limbus on the same side. The inhibition of NV was observed and quantified from days1 to 60. Biomicroscopic examination, western blot analysis and immunohistochemistry wereused to analyze the 18-kDa bFGF, 50-kDa PEDF and VEGF protein expression. Noinhibition activity for normal limbal vessels was noted. Subconjunctival injection with thecombination of bevacizumab and p-PEDF-SAINT-18 successfully inhibited corneal NV.The bFGF and PEDF genes were successfully expressed as shown by western blot analysis,and a mild immune response to HLA-DR was shown by immunohistochemistry. Weconcluded that the combination of bevacizumab and p-PEDF-SAINT-18 may have morepotent and prolonged antiangiogenic effects, making it possible to reduce the frequency ofsubconjunctival bevacizumab administration combined with a relatively safe profile andlow toxicity.
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- 2013
39. Inhibition of corneal neovascularization with plasmid pigment epithelium-derived factor (p-PEDF) delivered by synthetic amphiphile INTeraction-18 (SAINT-18) vector in an experimental model of rat corneal angiogenesis
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Chia-Hui Hung, Chien-Neng Kuo, Miao-Fen Chen, P.-C. Wu, Lin-Cheng Yang, Chi-Hung Chen, Yung-Jen Chen, Chung-Yi Chen, Cheng-Ta Yang, Chong-Bin Tsai, Hsi-Kung Kou, and Chien-Hsiung Lai
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Male ,Time Factors ,Angiogenesis ,Blotting, Western ,Pyridinium Compounds ,Biology ,Transfection ,Fibroblast growth factor ,Injections ,Cornea ,Rats, Sprague-Dawley ,Neovascularization ,Cellular and Molecular Neuroscience ,PEDF ,Western blot ,In vivo ,medicine ,Animals ,Corneal Neovascularization ,Nerve Growth Factors ,Eye Proteins ,Serpins ,medicine.diagnostic_test ,Genetic Therapy ,HLA-DR Antigens ,medicine.disease ,Immunohistochemistry ,Molecular biology ,eye diseases ,Sensory Systems ,Rats ,Disease Models, Animal ,Ophthalmology ,medicine.anatomical_structure ,Corneal neovascularization ,Feasibility Studies ,Fibroblast Growth Factor 2 ,sense organs ,medicine.symptom ,Conjunctiva - Abstract
The use of Synthetic Amphiphile INTeraction-18 (SAINT-18) carrying plasmid pigment epithelium-derived factor (p-PEDF) as an anti-angiogenesis strategy to treat corneal neovascularization in a rat model was evaluated. Four partially dried forms (Group A: 0 microg, B: 0.1 microg, C: 1 microg, D: 10 microg) of a p-PEDF-SAINT-18 were prepared and implanted into the rat subconjunctival substantia propria 1.5 mm from the limbus at the temporal side. The 1 microg of plasmid-basic fibroblast growth factor--SAINT-18 (p-bFGF-SAINT-18) (1 microg) was prepared and implanted into the rat corneal stroma 1.5 mm from the limbus on the same side. Inhibition of neovascularization was observed and quantified from day 1 to day 60. PEDF (50-kDa) and bFGF (18-kDa) protein expression were analyzed by biomicroscopic examination, Western blot analysis, and immunohistochemistry. Gene expression in corneal and conjunctival tissue was observed as early as 3 days after gene transfer and stably lasted for over 3 months with minimal immune reaction. Subconjunctival injection of a highly efficient p-PEDF-SAINT-18 successfully inhibited corneal neovascularization. Successful gene expression of bFGF, PEDF and a mild immune response of HLA-DR were shown by immunohistochemistry staining. We concluded that SAINT-18 was capable of directly delivering genes to the ocular surface by way of subconjunctival injection, and delivered sustained, high levels of gene expression in vivo to inhibit angiogenesis.
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- 2009
40. Effect of Pterygium Surgery on Refractive Spherocylinder Power and Corneal Topography
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Pei Lun Wu, Chien Neng Kuo, Han Lin Hsu, and Chien Hsiung Lai
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Adult ,medicine.medical_specialty ,Visual acuity ,Pterygium surgery ,Visual Acuity ,Ophthalmologic Surgical Procedures ,Astigmatism ,Pterygium ,Refraction, Ocular ,Cornea ,Ophthalmology ,medicine ,Humans ,Aged ,Retrospective Studies ,Aged, 80 and over ,medicine.diagnostic_test ,business.industry ,Corneal Topography ,Middle Aged ,Refractive Errors ,Corneal topography ,medicine.disease ,eye diseases ,medicine.symptom ,business - Abstract
BACKGROUND AND OBJECTIVE To evaluate the effect of pterygium surgery on refractive spherocylinder power and corneal topography. PATIENTS AND METHODS Twenty-four patients (27 eyes) undergoing pterygium surgery from January to December 2006 were retrospectively identified. Visual acuity, refractive spherocylinder power, and corneal topography were measured preoperatively and postoperatively. RESULTS Improvement of visual acuity, decreases of refractive spherocylinder power, and significant differences of 3-mm topographic irregularity and 3-mm topographic astigmatism postoperatively were found. Differences of refractive spherocylinder power preoperatively and postoperatively correlated significantly with differences of 3-mm topographic irregularity (spherical, r = 0.828, P = .000; cylinder, r = -0.805, P = .000) and of 3-mm topographic astigmatism (spherical, r = 0.673, P = .000; cylinder, r = -0.811, P = .000) preoperatively and postoperatively. CONCLUSION Pterygium surgery produces improvements in visual acuity, decreases of refractive spherocylinder power, topographic irregularity, and topographic astigmatism. Three-millimeter topographic irregularity and astigmatism have a close correlation with refractive spherocylinder power. [Ophthalmic Surg Lasers Imaging 2009;40:32-37.]
- Published
- 2009
41. A Novel Vector System for Gene Transfer into the Cornea Using a Partially Dried Plasmid Expressing 18 Basic Fibroblast Growth Factor–Synthetic Amphiphile INTeraction-18 (SAINT-18) Complex
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Hsi-Kung Kou, Cheng-Ta Yang, Chia-Hui Hung, Chien-Neng Kuo, Miao-Fen Chen, Jen-Chia Tsai, P.-C. Wu, Lin-Cheng Yang, Yi-Hao Chen, Chien-Hsiung Lai, Ching-Hsein Chen, and Chi-Hung Chen
- Subjects
Male ,Corneal Stroma ,Blotting, Western ,Genetic Vectors ,Basic fibroblast growth factor ,Gene Expression ,Pyridinium Compounds ,Biology ,Fibroblast growth factor ,Green fluorescent protein ,Rats, Sprague-Dawley ,Surface-Active Agents ,Cellular and Molecular Neuroscience ,chemistry.chemical_compound ,Cornea ,Gene expression ,medicine ,Animals ,Corneal Neovascularization ,Gene Transfer Techniques ,Transfection ,medicine.disease ,Immunohistochemistry ,Molecular biology ,Sensory Systems ,Rats ,Blot ,Ophthalmology ,medicine.anatomical_structure ,chemistry ,Corneal neovascularization ,Fibroblast Growth Factor 2 ,Plasmids - Abstract
We describe a novel vector system of nonviral gene transfer into the cornea using a partially dried form of a plasmid expressing 18-kDa basic fibroblast growth factor (p-bFGF)-synthetic amphiphile INTeraction-18 (SAINT-18) complex.Corneal neovascularization (NV) was evaluated in 48 eyes of Sprague-Dawley rats after implantation of SAINT-18 containing 2 micro g of plasmid-expressing green fluorescent protein (p-GFP; control group), 0.2 micro g, 2 micro g, or 20 micro g of p-bFGF from day 0 to day 60. bFGF protein expression was analyzed by Western blotting and immunohistochemistry.The p-bFGF-SAINT-18 complex induced dose-dependent corneal neovascularization, which reached a maximum on days 15-21 in the 20-micro g p-bFGF group, days 12-18 in the 2-micro g p-bFGF group, and on days 9-15 in the 0.2-micro g p-bFGF group, and then regressed progressively. No NV was observed in the p-GFP group.This noninflammatory corneal transfection model using partially dried p-bFGF-SAINT-18 complex allows precise localization of tranfection reagents for producing corneal neovascularization.
- Published
- 2008
42. Axial length and subfoveal choroidal thickness in individuals with age-related macular degeneration
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Evelyn Jou-Chen Huang, Chien-Hsiung Lai, Chih-Ping Wang, Pei-Lun Wu, Pei-Chen Wu, Chau-Yin Chen, Yin-Chi King, Ching-Lung Chen, and Chien-Neng Kuo
- Subjects
medicine.medical_specialty ,Color fundus photography ,genetic structures ,business.industry ,Axial length ,axial length ,Fundus (eye) ,Macular degeneration ,Drusen ,subfoveal choroidal thickness ,medicine.disease ,eye diseases ,Ophthalmology ,Age related ,medicine ,Asian country ,risk factors ,Original Article ,sense organs ,business ,age-related macular degeneration - Abstract
Purpose: To compare axial length (AL) and subfoveal choroidal thickness (SFCT) between individuals with age-related macular degeneration (AMD) and controls with no lesions. Methods: This was a case-control study. In total, 853 eyes of 484 patients (>65 years), including 397 eyes at various AMD stages and 456 eyes with no fundus lesions (controls) were recruited. Using color fundus photography, eyes were grouped according to AMD degree. AL was automatically measured using IOL Master and SFCT was manually measured by two independent observers. The associations among age, AL, SFCT, and each AMD grade were analyzed. Results: Out of 853 eyes, 456 had no lesions, 217 contained drusen only, 134 had early AMD, and 46 had late AMD. The eyes with late AMD were older (p = 0.007) and had longer AL (p ≥ 0.001) and thinner SFCT (p < 0.001) compared with groups of no fundus lesions, drusen only, and early AMD. SFCT in eyes with late AMD decreased by 19.20 μm (p = 0.049), 24.78 μm (p = 0.029), and 15.56 μm (p = 0.162) compared with groups of no fundus lesions, drusen only, and early AMD, respectively. SFCT decreased by 14.18 μm/mm increase in AL (p < 0.001). The odds ratio (OR) for late AMD by longer AL (≥25 mm) and thinner SFCT (
- Published
- 2015
43. Deep vein thrombosis due to continuous prone positioning after retinal detachment surgery
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Chih-Ping Wang, Chien-Neng Kuo, Evelyn Jou-Chen Huang, and Chien-Hsiung Lai
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Pars plana ,medicine.medical_specialty ,Deep vein ,medicine.medical_treatment ,Vitrectomy ,Case Report ,030204 cardiovascular system & hematology ,deep vein thrombosis ,03 medical and health sciences ,0302 clinical medicine ,medicine ,retinal detachment surgery ,business.industry ,Retinal detachment ,medicine.disease ,Thrombosis ,prone positioning ,Surgery ,Retinal Tear ,Ophthalmology ,Prone position ,medicine.anatomical_structure ,Anesthesia ,030221 ophthalmology & optometry ,Tamponade ,business - Abstract
In March 2014, a 56-year-old woman without previous underlying disease underwent encircling scleral buckling, 20-gauge pars plana vitrectomy, cryotherapy around a retinal tear, and gas-fluid exchange with 15% perfluoropropane flush for upper rhegmatogenous retinal detachment of the left eye. However, she developed progressive left leg swelling, pain, warmth, and redness, associated with difficulty in elevating her left leg after continuously maintaining a prone head position when either lying down or sitting for 2 days. When she arrived at the emergency room, she had an elevated d-dimer level. After undergoing Doppler ultrasound imaging, she was diagnosed as having deep vein thrombosis of the left leg. She received anticoagulation therapy with enoxaparin and warfarin overlapping for 7 days. The edema, pain, and paresthesia of her left leg were relieved. However, because of the risk of bleeding with anticoagulation drug usage, the patient needed to be monitored for 6 months. Prone positioning for gas tamponade is important for anatomic and functional success in retinal detachment surgery; however, timely walking and rest between periods of continuous prone positioning should be encouraged to prevent deep vein thrombosis and other impaired circulation-related complications.
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- 2016
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44. ANGIOGRAPHIC SUBTYPES OF POLYPOIDAL CHOROIDAL VASCULOPATHY IN TAIWAN: A Prospective Multicenter Study.
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LING YEUNG, CHIEN-NENG KUO, AN-NING CHAO, KUAN-JEN CHEN, WEI-CHI WU, CHIEN-HSIUNG LAI, NAN-KAI WANG, YIH-SHIOU HWANG, CHING-LUNG CHEN, and CHI-CHUN LAI
- Published
- 2018
45. Cell cycle regulation by bevacizumab in ARPE-19 human retinal pigment epithelial cells
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Chien-Neng Kuo, Chien-Hsiung Lai, Chia-Hui Hung, Chung-Yi Chen, Ching-Hsein Chen, Pei-Chen Wu, and Li-Ju Lai
- Subjects
Cyclin-Dependent Kinase Inhibitor p21 ,Cancer Research ,genetic structures ,Bevacizumab ,Cell Survival ,Cyclin D ,Angiogenesis Inhibitors ,Retinal Pigment Epithelium ,Antibodies, Monoclonal, Humanized ,Biochemistry ,Retinoblastoma Protein ,Flow cytometry ,chemistry.chemical_compound ,Macular Degeneration ,Cyclin-dependent kinase ,Cyclin E ,Genetics ,medicine ,Humans ,Phosphorylation ,Molecular Biology ,Cells, Cultured ,Cyclin-Dependent Kinase Inhibitor p16 ,biology ,medicine.diagnostic_test ,Cyclin-Dependent Kinase 2 ,Cyclin-Dependent Kinase 4 ,Retinal ,Cyclin-Dependent Kinase 6 ,Cell cycle ,Macular degeneration ,medicine.disease ,G1 Phase Cell Cycle Checkpoints ,eye diseases ,Cell biology ,Vascular endothelial growth factor ,Oncology ,chemistry ,S Phase Cell Cycle Checkpoints ,biology.protein ,Cancer research ,Molecular Medicine ,sense organs ,Tumor Suppressor Protein p53 ,Cyclin-Dependent Kinase Inhibitor p27 ,medicine.drug - Abstract
Bevacizumab, a recombinant humanized monoclonal antibody, binds vascular endothelial growth factor (VEGF) and inhibits its interaction with receptors found on endothelial cells. Bevacizumab has been increasingly used as an off-label treatment for exudative age-related macular degeneration (AMD). Whether or not bevacizumab is capable of arresting the growth of human retinal pigment epithelial cells remains to be clarified. In this study, flow cytometry was used to evaluate whether bevacizumab markedly induced the G1/S phase arrest. The G1/S phase cycle-related protein analysis demonstrated that the expression of cyclin-dependent kinase (CDK)2, 4 and 6 and of cyclin D and E, as well as the phosphorylation of retinoblastoma tumor suppressor protein (ppRB) production were found to be markedly reduced by bevacizumab. By contrast, the protein levels of p53, p16, p21 and p27 were increased in bevacizumab-treated ARPE-19 cells (a human retinal pigment epithelial cell line). These events of G1/S arrest induced by bevacizumab in ARPE-19 cells suggest that a preventive effect of bevacizumab exists in AMD.
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- 2012
46. Optical coherence tomographic patterns in diabetic macula edema can predict the effects of intravitreal bevacizumab injection as primary treatment
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Chien-Neng Kuo, Pei-Chen Wu, Chien-Hsiung Lai, and Ching-Lung Chen
- Subjects
Male ,medicine.medical_specialty ,Visual acuity ,genetic structures ,Bevacizumab ,Visual Acuity ,Angiogenesis Inhibitors ,Antibodies, Monoclonal, Humanized ,Serous Retinal Detachment ,Macular Edema ,chemistry.chemical_compound ,Optical coherence tomography ,Ophthalmology ,Edema ,medicine ,Humans ,Pharmacology (medical) ,Intravitreal bevacizumab ,Macular edema ,Aged ,Retrospective Studies ,Pharmacology ,Aged, 80 and over ,Diabetic Retinopathy ,medicine.diagnostic_test ,business.industry ,Retinal ,Middle Aged ,medicine.disease ,eye diseases ,Surgery ,Treatment Outcome ,chemistry ,Intravitreal Injections ,Female ,sense organs ,medicine.symptom ,business ,Tomography, Optical Coherence ,medicine.drug - Abstract
To identify optical coherence tomography (OCT) patterns in diabetic macular edema (DME) that were predictive of visual outcomes after intravitreal bevacizumab (IVB) injection.This was a retrospective study. We examined 31 eyes (24 patients) with clinically significant macular edema that received IVB injections along with macular OCT data. The eyes were categorized into 4 groups by using OCT features: diffuse retinal thickening (DRT), cystoid macular edema (CME), serous retinal detachment (SRD), and vitreomacular interface abnormalities (VMIAs). Changes in retinal thickness, retinal volume, and visual acuity (VA) after IVB injection were compared on the basis of OCT patterns.After IVB injections, changes in VA logarithm of the minimum angle of resolution were -0.06±0.36, -0.26±0.26, 0.09±0.13, and -0.08±0.15, respectively, for DRT, CME, SRD, and VMIA patterns. Central macular thickness decreased by 70.5±105.5, 110.67±97.28, 181±125.87, and 24.25±77.12 μm for the DRT, CME, SRD, and VMIA patterns, respectively. The CME group was associated with a greater reduction in retinal thickness (P=0.009) and volume (P=0.027) with superior VA improvement (P=0.012) as compared with the DRT, SRD, and VMIA groups.Patients with CME gained greater improvement in visual acuity and macular thickness and volume after IVB injection had been administered as the primary treatment for DME, as compared with other patients. The OCT patterns of DME may indicate the appropriate treatment; we consider these patterns to be prognostic of the response to IVB injection for macular edema.
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- 2011
47. The successful medical treatment of a case of Paecilomyces lilacinus keratitis
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Ching-Hsi Hsiao, David Hui-Kang Ma, Pei-Chen Wu, Hsin-Yuan Tan, and Chien-Hsiung Lai
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Male ,medicine.medical_specialty ,Corneal Infection ,Visual acuity ,Antifungal Agents ,genetic structures ,Administration, Topical ,Pharmacology ,Keratitis ,Natamycin ,Pharmacotherapy ,Amphotericin B ,medicine ,Humans ,Corneal Ulcer ,Aged ,Voriconazole ,business.industry ,Eye infection ,Triazoles ,medicine.disease ,Dermatology ,eye diseases ,Ophthalmology ,Pyrimidines ,Mycoses ,medicine.symptom ,business ,Paecilomyces ,Eye Infections, Fungal ,medicine.drug - Abstract
Purpose To report the successful medical treatment of Paecilomyces lilacinus keratitis case with topical voriconazole. Methods A 72-year-old male farmer developed a corneal infection in the left eye and corneal culture revealed Paecilomyces lilacinus. Infection was progressive despite initial treatment with hourly topical amphotericin B (1.5 mg/mL) and topical 5% natamycin. Treatment was switched to hourly topical voriconazole (10 mg/mL). Results The infection responded well to topical voriconazole and resolved within 1 month without any surgical intervention. The patient's best-corrected visual acuity was 20/200 secondary to central corneal scarring and a cataract in the left eye at the 10-month follow-up. Conclusion Voriconazole may be effective in the treatment of Paecilomyces lilacinus keratitis refractory to standard antifungal agents. Early organism detection and appropriate treatment are necessary to eradicate such an infection.
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- 2010
48. Manifestation of Coats' disease by age in Taiwan
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P.-C. Wu, Ming-Lun Kuo, Chien-Hsiung Lai, Hsi-Kung Kuo, and Yung-Jen Chen
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Posterior pole ,Taiwan ,Disease ,Clinical manifestation ,Age Distribution ,Retinal Diseases ,Internal medicine ,medicine ,Humans ,Coats' disease ,Telangiectasis ,Sex Distribution ,Telangiectasia ,Child ,Retrospective Studies ,business.industry ,Retinal detachment ,Infant ,Retinal Vessels ,Odds ratio ,Exudates and Transudates ,Middle Aged ,medicine.disease ,Confidence interval ,Surgery ,Ophthalmology ,Child, Preschool ,Female ,medicine.symptom ,business - Abstract
Background: To compare the differences in clinical manifestation of Coats' disease between younger and older patients in the Far East. Methods: Coats' disease cases diagnosed at one Taiwanese hospital from July 1986 to June 2004 were retrospectively reviewed (n = 30; 32 eyes). Patients were stratified into groups according to the initial diagnosis of Coats' disease at the age of
- Published
- 2007
49. Prevalence of childhood acne, ephelides, warts, atopic dermatitis, psoriasis, alopecia areata and keloid in Kaohsiung County, Taiwan: a community-based clinical survey
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Yang Yc, WenChieh Chen, Yu-Fen Cheng, and Chien-Hsiung Lai
- Subjects
Male ,medicine.medical_specialty ,Alopecia Areata ,Cross-sectional study ,Population ,Prevalence ,Taiwan ,Dermatology ,Skin Diseases ,Melanosis ,Dermatitis, Atopic ,Psoriasis ,Epidemiology ,Acne Vulgaris ,medicine ,Humans ,education ,Child ,Acne ,education.field_of_study ,Chi-Square Distribution ,business.industry ,Atopic dermatitis ,Alopecia areata ,medicine.disease ,Infectious Diseases ,Cross-Sectional Studies ,Keloid ,Female ,Warts ,business - Abstract
Background Epidemiological study on childhood dermatoses performed by direct inspection of dermatologists is limited. Objective To investigate the prevalence of selective childhood dermatoses in Taiwan. Methods In a cross-sectional study carried out in June 2004, 4067 of 7851 children aged between 6 and 11 years living in the Kaohsiung County in south Taiwan were clinically surveyed and examined by two board-certified dermatologists (response rate 52%), regarding the point prevalence of acne, ephelides, warts, atopic dermatitis (AD), psoriasis, alopecia areata (AA) and keloid. Results Acne vulgaris was found in girls and boys from the age of 6 and 7, respectively, with comedones being the earliest presentation. Ephelides were not infrequently observed in our children (prevalence rate 8.4%, 95% confidence interval, CI 7.9–9.3%). The prevalence of warts on hands was 2.4% (95% CI 1.9–2.9%). The prevalence of AD was 1.7% (95% CI 1.3–2.1%), without gender difference. There were only four cases of AA but no psoriasis was found. Keloid was identified in 13 boys and 10 girls, accounting for 0.6% (95% CI 0.598–0.602%) of the children. Conclusion Acne vulgaris is as common in Taiwan as in Western countries. Ephelides are not uncommon in our population with the main skin types III–IV. A clustered distribution of the wart infection was noted. The low prevalence of AD in Taiwan seems unaltered over the past decade. AA and psoriasis are rare in our series. Most keloids in our children are caused by BCG vaccination.
- Published
- 2007
50. Laser chorioretinal venous anastomosis for progressive nonischemic central retinal vein occlusion
- Author
-
Chih-Hsin, Chen, Chien-Hsiung, Lai, and Hsi-Kung, Kuo
- Subjects
Male ,Adolescent ,Choroid ,Anastomosis, Surgical ,Retinal Vein Occlusion ,Visual Acuity ,Humans ,Laser Therapy - Abstract
The use of high or medium-intensity lasers to create an anastomotic connection between a retinal vein and a choroidal vein for the treatment of nonischemic central retinal vein occlusion (CRVO) has shown encouraging results. We established communication between an obstructed retinal vein and the choroid using a modified laser application in the eye of a 17-year-old boy with progressive nonischemic CRVO with macular edema and achieved excellent anatomic and visual results. The macular edema totally resolved and visual acuity significantly improved from 6/60 to 6/6.
- Published
- 2006
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