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3 results on '"Stefaan Van Nuffel"'

1. Paediatric cataract surgery with 27G vitrectomy instrumentation: the Ghent University Hospital Experience

Author

Hwei Wuen Chan, Filip Van den Broeck, Axelle Cools, Sophie Walraedt, Inge Joniau, Hannah Verdin, Irina Balikova, Stefaan Van Nuffel, Patricia Delbeke, Elfride De Baere, Bart P. Leroy, and Fanny Nerinckx

Subjects
paediatric cataract, congenital cataract, nystagmus, galactosaemia, torches, 27G vitrectomy, Medicine (General), R5-920
Abstract

ObjectiveTo describe a cohort of paediatric patients who underwent unilateral or bilateral lens extractions at Ghent University hospital using the Dutch Ophthalmic Research Center (D.O.R.C.) ultra-short 27G vitrectomy system.MethodsRetrospective analysis of the medical and surgical records of all children that underwent lens extraction between September 2016 and September 2020 using the D.O.R.C. ultra-short 27G vitrectomy system.ResultsSeventy-two eyes of 52 patients were included. The most important aetiologies in this study were of secondary (25.5%), developmental (13.7%), or genetic (13.7%) nature. No definitive cause could be established in more than a quarter of cases (27.5%) despite extensive work-up, them being deemed idiopathic. The remainder of cases (19.6%) was not assigned a final aetiologic designation at the time of the study due to contradicting or missing diagnostic data. This study could not identify any cataract cases related to infection or trauma. Surgical complications rate was 61.1% of which posterior capsule opacification was the most frequent with a rate of 25%. A significant short-term postoperative best-corrected visual acuity gain (≤ −0.2 LogMAR) was observed in 60.5% of eyes for which usable acuity data were available (n = 38).ConclusionMany different instruments and techniques have been described and used in the context of paediatric lens extractions, each with its advantages and disadvantages. This study illustrates that an ultra-short 27G vitrectomy system can be used to perform paediatric lens extractions with good surgical outcomes. Further studies and comparative trials are needed to ascertain this further.

Published
2023
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2. Cystoid Macular Edema Following Cataract Surgery with Low-Energy Femtosecond Laser versus Conventional Phacoemulsification

Author

Marnix H Claeys, Stefaan Van Nuffel, and Matthias F Claeys

Subjects
medicine.medical_specialty, genetic structures, business.industry, medicine.medical_treatment, Phacoemulsification, Cataract surgery, medicine.disease, eye diseases, Ophthalmology, Low energy, medicine, In patient, sense organs, business, Macular edema
Abstract

Purpose To compare postoperative changes in central subfield macular thickness (CSMT) and prevalence of cystoid macular edema (CME) in patients undergoing cataract surgery with low-energy femtosecond laser versus standard phacoemulsification. Design This was a retrospective comparative real-world study. Methods Postoperative data of 252 eyes of 165 patients were collected: 138 eyes received low-energy femtosecond laser-assisted cataract surgery (FLACS) and 114 eyes underwent conventional phacoemulsification cataract surgery (CPCS). Postoperative changes in CSMT and prevalence of CME were compared between the two groups. Results There was a significant increase in mean CSMT from preoperative to postoperative values at 2.5 months in both the FLACS and CPCS group (p

Published
2020

3. The corneoscleral shape in keratoconus patients with and without specialty lens wear

Author

Stefaan Van Nuffel, Carina Koppen, Elke O. Kreps, and Alejandra Consejo

Subjects
medicine.medical_specialty, Keratoconus, genetic structures, Emmetropia, law.invention, Cornea, 03 medical and health sciences, 0302 clinical medicine, Scleral lens, law, Ophthalmology, Medicine, Humans, business.industry, Corneal Topography, General Medicine, medicine.disease, Sagittal plane, eye diseases, Sclera, Lens (optics), medicine.anatomical_structure, Cross-Sectional Studies, 030221 ophthalmology & optometry, sense organs, Human medicine, business, 030217 neurology & neurosurgery, Optometry
Abstract

Purpose: To evaluate differences in corneoscleral shape in keratoconus patients with and without specialty lenses compared to controls. Methods: A cross-sectional study was performed comparing three groups of keratoconus eyes: 24 lens-na & iuml;ve keratoconus eyes (17 patients; group 1), 7 eyes with corneal lens wear (7 patients; group 2) and 7 eyes with scleral lens wear (7 patients; group 3). For comparison, 25 eyes of 25 emmetropic participants and 11 eyes of 11 astigmatic participants were included. Corneoscleral topography measurements taken with the Eye Surface Profiler (ESP, Eaglet Eye BV, Houten, Netherlands) were exported and assessed using custom-made software to demarcate the limbal radius, and to calculate sagittal height and corneoscleral asymmetry. Results: In non-lens wearing keratoconus patients, sagittal height was found to be significantly larger than in control eyes, in both the corneal periphery and sclera (paired t-test, pairwise comparisons p < 0.01). The level of peripheral corneal and scleral asymmetry was also significantly higher in non-lens wearing keratoconus eyes compared to controls (t-test, p < 0.01). Both corneal and scleral lens wear resulted in significant changes to the shape of the corneal periphery and sclera. In all 3 groups of keratoconus eyes, asymmetry of the peripheral cornea showed a very strong correlation with scleral asymmetry (R2 = 0.90, 0.86 and 0.85 for groups 1 & ndash;3, respectively). Conclusion: The corneal periphery and sclera have a distinctly different shape in keratoconus eyes compared to controls. Specialty lens wear induces significant regional changes to the shape of the anterior eye in keratoconus eyes.

Published
2020

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