Degenerations of the dog retina: III. Retinopathy secondary to glaucoma

Abstract

(1) Two natural cases of retinal degeneration secondary to glaucoma in dogs are described. (2) The main morbid anatomical and histological features of the degeneration are similar to those seen in human eyes with chronic glaucoma, but there are certain minor differences. (3) Compression of the rods and cones and cystic degeneration at the ora serrata were not found. (4) The peripheral and mid-ventral non-tapetal retina was more severely affected than the central (mainly tapetal) retina; possible reasons are discussed. (5) Some effects of ischaemia on the retina of the dog are considered. (6) Failure to detect an electroretinogram in the eyes of one case is noted.