Abstract
Examination of 14 aged chinchillas revealed a shallow orbit, a rudimentary nictitating membrane, a large cornea, a densely pigmented iris with a vertical slit pupil, and an anangiotic fundus with variable vascularization of the optic disc. Mean intraocular pressure was 18·5 ± 5·75 standard deviation mmHg. Bilateral posterior cortical cataracts and asteroid hyalosis were observed in 2 animals.