Transconjunctival Vitrectomy with Intraocular Lens Clipped to the Posterior Surface of the Iris in Bamako: Indications and Outcome
La Vitrectomie Transconjonctivale Avec Implant Intraoculaire Clippé à la Face Postérieure de l’Iris à Bamako : Indications et Résultats
DOI:
https://doi.org/10.5281/hra.v3i4.6578Keywords:
transconjunctival vitrectomy, retropupillary iris claw, aphakiaAbstract
RÉSUMÉ
Introduction. Introduction. La vitrectomie transconjonctivale avec implant intraoculaire clippé à la face postérieure de l'iris est une technique chirurgicale qui est à ses débuts au CHU-IOTA. Cette étude avait pour but de décrire les indications, les résultats et les complications de cette chirurgie. Méthodologie. Nous avons mené une étude transversale et descriptive, pendant une période de 9 mois au Centre Hospitalier Universitaire de l’Institut d’Ophtalmologie Tropicale d’Afrique (CHU-IOTA). Etaient inclus, les patients ayant bénéficié d’une vitrectomie transconjonctivale pour extraction de cristallin ou d’un implant luxé dans le vitré et d’une fixation irienne postérieure de l’implant Artisan pour corriger l’aphaquie. Chaque patient était suivi en post opératoire pendant un mois. Résultats. Au total, 31 patients (16 femmes et 15 hommes) pour 31 yeux ont été inclus. Leurâge moyen était de 60,87 ± 12,45 ans. L’acuité visuelle moyenne préopératoire était de 1,7 ± 0,37 logMAR. Les indications de la chirurgie étaient la luxation de l’implant dans le vitré (54,84% ; n=17), la luxation traumatique du cristallin (41,93% ; n=13) et la luxation du cristallin liée à au syndrome de Marfan (3,23% ; n=1). A un mois postopératoire, l’acuité visuelle moyenne était de 0,28 ± 0,33 logMAR, un patient (3,23%) avait une hypertonie oculaire, 2(6,45%) avaient développé un décollement de rétine et chez tous les patients l’implant était bien fixé et centré avec l’iris et la pupille d’aspect normal. Conclusion. La vitrectomie transconjonctivale avec implant intraoculaire clippé à la face postérieure de l’iris est une option simple et efficace dans la prise en charge de la luxation lenticulaire sans support capsulaire à court terme.
ABSTRACT
Introduction. Transconjunctival vitrectomy and retropupillary iris claw intraocular lens implantation is a new surgical technique at CHU-IOTA. The aim of this study is to report the indications, outcomes and complications of this surgery. Methodology. We conducted a cross-sectional and descriptive study over a 9-month period at the University Hospital of the Tropical Ophthalmology Institute of Africa (CHU-IOTA). Patients who underwent transconjunctival vitrectomy for the extraction of a dislocated lens or implant in the vitreous, followed by posterior iris fixation of the Artisan implant to correct aphakia, were included. Each patient was followed postoperatively for one month. Results. A total of 31 patients (16 women and 15 men) with 31 eyes were included. The mean age was 60.87 ± 12.45 years. The mean preoperative visual acuity was 1.7 ± 0.37 logMAR. Surgical indications included implant dislocation into the vitreous (54.84%; n=17), traumatic lens dislocation (41.93%; n=13), and lens dislocation related to Marfan syndrome (3.23%; n=1). At one month postoperatively, the mean visual acuity was 0.28 ± 0.33 logMAR. One patient (3.23%) developed ocular hypertension, two patients (6.45%) experienced retinal detachment, and for all patients, the implant was well-fixed and centered, with a normal-appearing iris and pupil. Conclusion. Transconjunctival vitrectomy with an intraocular implant clipped to the posterior surface of the iris is a simple and effective option for managing lens dislocation without capsular support in the short term.
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