B R Gloor1. 1. Augenklinik, Universitätsspital Zürich.
Abstract
BACKGROUND: In 1995, Beck and Lynch reported a method to perform a 360 degrees trabeculotomy by prolene suture introduced into Schlemm's canal. Because this type of surgery has proved to have perils and can lead to extreme hypotony, even a small series of cases must be reported. PATIENTS: Suture trabeculotomy was planned in five eyes of four patients, 5 and 7 months old and 6 and 51 years old, with primary congenital glaucoma, but completed in only two eyes. RESULTS: In one child, suture trabeculotomy could be accomplished easily in both eyes. In the first eye a 360 degrees-tomy was performed, in the second eye only a 180 degrees-tomy was done. Both eyes remained extremely hypotonic (4 mm Hg). In one eye Schlemm's canal could not be disrupted by the suture; in another eye, Schlemm's canal could be probed only for a short distance, and in one eye the suture went the wrong way. CONCLUSIONS: Because a suture trabeculotomy can be transformed into a normal trabeculotomy any time, the main problems of the 360 degrees-suture trabeculotomy are not the possible technical difficulties, but that a successful suture trabeculotomy is followed by extreme hypotony.
BACKGROUND: In 1995, Beck and Lynch reported a method to perform a 360 degrees trabeculotomy by prolene suture introduced into Schlemm's canal. Because this type of surgery has proved to have perils and can lead to extreme hypotony, even a small series of cases must be reported. PATIENTS: Suture trabeculotomy was planned in five eyes of four patients, 5 and 7 months old and 6 and 51 years old, with primary congenital glaucoma, but completed in only two eyes. RESULTS: In one child, suture trabeculotomy could be accomplished easily in both eyes. In the first eye a 360 degrees-tomy was performed, in the second eye only a 180 degrees-tomy was done. Both eyes remained extremely hypotonic (4 mm Hg). In one eye Schlemm's canal could not be disrupted by the suture; in another eye, Schlemm's canal could be probed only for a short distance, and in one eye the suture went the wrong way. CONCLUSIONS: Because a suture trabeculotomy can be transformed into a normal trabeculotomy any time, the main problems of the 360 degrees-suture trabeculotomy are not the possible technical difficulties, but that a successful suture trabeculotomy is followed by extreme hypotony.
Authors: Don Minckler; George Baerveldt; Marina Alfaro Ramirez; Sameh Mosaed; Richard Wilson; Tarek Shaarawy; Barend Zack; Laurie Dustin; Brian Francis Journal: Trans Am Ophthalmol Soc Date: 2006
Authors: Turid Skei Tønset; Jan Erik Jakobsen; Jon Henrik Tveit; Anna-Katharina L Jørstad; Tone Beate Brevik; Lotte-Guri Bogfjellmo Sten; Liv Drolsum Journal: Acta Ophthalmol Date: 2021-03-19 Impact factor: 3.988