title: Anatomic and histopathologic findings following a failed ahmed glaucoma valve device.
abstract: 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.
authors.affiliation: Department of Ophthalmology, Tulane University Medical Center, New Orleans, Louisiana 70124, USA. rsayyala@hotmail.com
authors.forename: R S
authors.initials: RS
authors.lastname: Ayyala
authors.forename: W E
authors.initials: WE
authors.lastname: Layden
authors.forename: C B
authors.initials: CB
authors.lastname: Slonim
authors.forename: C E
authors.initials: CE
authors.lastname: Margo
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D003930:Diabetic Retinopathy / Q000150:complications; D015353:Eye Enucleation; D005260:Female; D020327:Glaucoma Drainage Implants; D015355:Glaucoma, Neovascular / Q000209:etiology / Q000473:pathology* / Q000601:surgery; D015745:Granuloma, Foreign-Body / Q000209:etiology / Q000473:pathology*; D006644:Histiocytes / Q000473:pathology; D006801:Humans; D007429:Intraocular Pressure; D008214:Lymphocytes / Q000473:pathology; D009900:Optic Nerve / Q000473:pathology; D010950:Plasma Cells / Q000473:pathology; D011475:Prosthesis Failure; D014792:Visual Acuity