Persistent Hyperplastic Primary Vitreous (PHPV) in Two Siberian Husky Dogs

Abstract

Three eyes in two Siberian husky dogs were clinically diagnosed as persistent hyperplastic primary vitreous (PHPV) by means of ophthalmoscopy and ultrasonography (USG). Examination of mildly affected PHPV eyes with an ophthalmoscope showed the axial part of the posterior capsule to be opaque. The central lesion of the posterior capsule in severely affected eyes had been opaque with many blood vessels. Echographic changes in mild cases of PHPV were outside of the lens, linearly hyperechoic, parallel to the posterior lens capsule. In a severely affected eyeball, funnel-shaped hyperechoic change was noted in the retrolental space. Two months later, phacoemulsification was performed for diagnostic treatment of PHPV since progressive cataract was observed in this eye.