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The management of encapsulated bleb following Ahmed glaucoma valve implantation

Poster Details

First Author: N.Mylopoulos GREECE

Co Author(s):    E. Georgiadoy   N. Georgiadis           

Abstract Details


The management of encapsulated bleb following Ahmed glaucoma valve (AGV) implantation using a silicone tube subconjunctivally in the encapsulated bleb


Saint lucas clinic opthalmological department


A 42 year old patient underwent cataract extraction surgery in both eyes for the correction of high myopia 12 years ago. Postoperatively the patient developed in both eyes corneal endothelial decompensation and an increase in intraocular pressure (IOP). For the correction of those complications the patient underwent lens exchange surgery, trabeculectomy, AGV implantation and endothelial keratoplasty in both eyes. Opthalmoscopically the clinical features postoperatively in the right eye showed optic disc damage. In the left eye 5 months after the surgery IOP was measured low and stable but encapsulated bleb developed. For the management of this complication we decided to implant surgically a silicone tube in the encapsulated bleb for a permanent and continuous filtration of the aqueous in the subconjuctiva space. Tube erosion occurred 2 months after the surgery and thus a new surgery was performed and a donor scleral flap was inserted between the tube and Tenon capsule


Today the visual acuity of the patient in the left eye is 4/10 and IOP is 12mmHg without medical treatment


The use of silicone tube inserted in to the encapsulated bleb is an effective and safe procedure for the management of encapsulated bleb complication following artificial drainage shunts. FINANCIAL DISCLOSURE?: No

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