DR. R NIYANTHRI

DR.PRASANNA VENKATARAMAN

Abstract

A 71-year-old gentleman with primary angle closure glaucoma, post Trabeculectomy in both eyes and left eye pseudophakia underwent an uneventful glaucoma drainage device (GDD) implantation

10 months ago. His intraocular pressure was 10 mm Hg. On subsequent visit, he presented with two line drop in visual acuity and was found to have focal corneal edema and Descemet’s membrane folds. There was no obvious tube-cornea touch in AS-OCT and the tube was in the anterior chamber. He was managed conservatively with hyperosmotic drops. Most studies report the risk of corneal decompensation following GDD implantation ranging from 10-16 %. Although sulcus implantation of GDD is slightly challenging, it should it be practiced for pseudophakic patients. We present this case to highlight the importance of implanting the tube as far away from the cornea whenever possible.