Clinical Experience of Trabeculotomy for the Surgical Treatment of Aniridic Glaucoma

Objective: The purpose of this study is to determine the efficacy of initial trabeculotomy in the patient with aniridic glaucoma.

Design: Clinical charts were reviewed.

Participants: Twenty-nine eyes of 16 patients with aniridia were studied.

Intervention: Glaucoma surgery was performed. As an initial procedure, trabeculotomy was performed in 12 eyes, other surgery was performed in 17 eyes (trabeculectomy, 5; goniotomy, 5; other, 7).

Main Outcome Measures: Success was defined as an intraocular pressure (IOP) of 21 mmHg or lower, and no further surgery was performed.

Results: Ten (83%) of 12 eyes obtained IOP control after first (6 eyes) or second (4 eyes) trabeculotomy with a mean follow-up period of 9.5 years. Five eyes maintained visual acuity of 20/40 to 20/200. No serious complications were found after trabeculotomy. Three (18%) of 17 eyes were controlled with the first glaucoma surgery other than trabeculotomy (goniotomy, trabeculectomy, trabeculectomy combined with trabeculotomy, and Molteno implant). Good IOP control was obtained in 8 (47%) of 17 eyes after several surgeries with a mean follow-up period of 10.4 years. Four of 17 eyes became phthisical.

Conclusion: This study suggests that trabeculotomy is the preferred initial operation for uncontrolled glaucoma with aniridia.