ILKAY TUGCE KARA, ENVER MİRZA, GUNSU DENİZ MİRZA, REFİK OLTULU, MEHMET OKKA
Beyoglu Eye Journal - 2025;10(2):117-122
The objective is to present the clinical improvement observed after ab interno intraluminal occlusion of Ahmed glaucoma valve (AGV) tube with a 4–0 polypropylene suture in a patient with secondary hypotony following AGV implantation. A 47-year-old male patient with a history of retinitis pigmentosa, congenital cataract, and glaucoma had undergone ex-press glaucoma filtration device implantation and cyclophotocoagulation treatments in his left eye previously. The intraocular pressure (IOP) was not regulated with these treatments, and an AGV implantation was performed in our clinic. Due to the development of hypotony at the postoperative 1st week, ab interno intraluminal occlusion of the AGV tube was planned with a 4–0 polypropylene suture. Before AGV tube implantation, the best-corrected visual acuity (BCVA) was 0.05, and IOP was 40 mmHg (with maximum antiglaucoma medication) in the left eye of the patient. At the postoperative 1st week, BCVA regressed to the level of hand motion, and IOP was
