October 23, 2007
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Trabeculectomy, cataract extraction show long-term IOP control

Trabeculectomy performed either with or without cataract extraction and IOL implantation can provide effective IOP control for up to 15 years postop in primary open-angle or chronic primary angle-closure glaucoma, researchers in South Korea found.

Samin Hong, MD, and colleagues evaluated the long-term efficacy of trabeculectomy and a triple procedure involving trabeculectomy with cataract and IOL surgery in 1,542 eyes of 900 glaucoma patients. They published their results in the October issue of Ophthalmologica.

The researchers defined successful IOP control as at least a 30% IOP reduction from baseline, either with or without anti-glaucoma medications.

At 15 years follow-up, the overall probability of successful IOP control was 0.613 for trabeculectomy alone and 0.733 for the triple procedure. Also, the probability of successfully reducing IOP to below 18 mm Hg was 0.748 for trabeculectomy alone and 0.825 for the triple procedure, according to the study.