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Intraoperative management of nonfunctioning Ahmed glaucoma valve implant
Pete Setabutr1, Nicholas P F Bell, Robert M Feldman
1Department of Ophthalmology and Visual Science, The University of Texas Medical School at Houston, Houston, Texas 77030, USA.
Abstract:
A 62-year-old woman with neovascular glaucoma underwent filtering surgery with the Ahmed glaucoma valve (New World Medical, Inc., Rancho Cucamonga, CA). Intraoperative hypotony secondary to a defective valve was noted and managed by excising the valve mechanism. The implant was then treated as if it was non-valved by placement of an obturator suture. The postoperative course was unremarkable for a non-valved implant. This case demonstrates how intraoperative hypotony secondary to overfiltration of an Ahmed glaucoma valve implant can be successfully managed by converting to a non-valved implant.
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