%0 Case Reports
%T Congenital glaucoma in a tiger (Panthera tigris).
%A Dianis AE
%A Pinard CL
%A Pagliarani S
%A Susta L
%A Dutton CJ
%J Vet Ophthalmol
%V 26
%N 4
%D 2023 Jul 26
%M 37232297
%F 1.444
%R 10.1111/vop.13110
%X <B>OBJECTIVE: </B>To describe a case of congenital glaucoma in atiger (Panthera tigris).<BR><B>METHODS: </B>An 8-month-old intact female tiger wasreferred for suspected glaucoma of the right eye. The right eye was buphthalmicwith moderate episcleral injection, circumferential superficial cornealneovascularization, moderate corneal edema, and a fixed dilated pupil. Tapetalreflection was absent due to a mature cataract. Rebound tonometry under generalanesthesia revealed 70 mmHg and 21 mmHg in the right and left eye, respectively.<BR><B>METHODS: </B>A trans-conjunctival enucleation was performedand the globe was submitted for histopathology.<BR><B>RESULTS: </B>Histopathology revealed a thin sclera, amorphousmaterial contouring an imperforate and hypoplastic iridocorneal angle, ahypoplastic lens with severe anterior-posterior compression, subcapsularepithelial hyperplasia, and Morganian globules, and segmental moderate retinalatrophy. Periodic acid-Schiff stain highlighted segmental dilations of theDescemet's membrane. Masson trichrome stain highlighted a pre-irido collagenmembrane.<BR><B>CONCLUSIONS: </B>The tiger's age and histopathologic findingsare consistent with congenital goniodysgenesis. This is the first known reportof congenital glaucoma in a tiger.