Study: Trabeculectomy After Failed Glaucoma Drainage Device Surgery

Source: Medscape

Trabeculectomy after failed glaucoma drainage device (GDD) is often thought of as a poor choice due to the possibility of violated conjunctiva leading to failure of the trabeculectomy. Thus, no large studies on the success rate of trabeculectomy after GDD have been performed.

This study is one of the first retrospective chart reviews evaluating the outcomes of trabeculectomy with adjunctive mitomycin-C (MMC) in patients with uncontrolled intraocular pressure (IOP) after GDD.

Twenty eyes from 19 patients were included for analysis. Mean IOP (±SD) decreased, from 19.3 ± 4.2 mm Hg prior to surgery to 9.8 ± 2.2 mm Hg at 1 year, 8.8 ± 3.2 mm Hg at 3 years, and 8.4 ± 1.5 mm Hg at 5 years (all P < .001).

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