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Ophthalmic Surg Lasers. 2001 May-Jun;32(3):248-9.

Anatomic and histopathologic findings following a failed ahmed glaucoma valve device.

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  • 1Department of Ophthalmology, Tulane University Medical Center, New Orleans, Louisiana 70124, USA.


Ahmed glaucoma valve implant (AGV) is one of the more commonly used implants in difficult glaucomas. The histology of a functioning bleb following AGV implantation and its anatomic relationship to the optic nerve when placed in the superionasal quadrant has been described. We report the histology of a failed bleb and the anatomic relationship between the optic nerve and the AGV end-plate when placed 9 mm from the limbus in a patient with neovascular glaucoma.

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