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. -KEY WORDS: persistent hyperplastic primary vitreous (PHPV), Siberian husky.
Twenty-six cataract eyes and 3 nunclear sclerotic eyes from 17 dogs were examined by ultrasonography (USG). USG of all of the cataractous eyes showed echographic changes, and the most prevalent changes were hyperechostic in the anterior and posterior cortices and nuclear poles. In 4 of 6 immature cataractous eyes the slit-lamp biomicroscopy of cataract area was accorded with echostic changes. In 2 cases cataractous lens increased in thickness, and one eye diagnosed as aphakia, was hyperechoic in the anterior and posterior capsules aligned closely and parallel to each other without showing the normal convex lens shape. Three cases of nuclear sclerosis showed no abnormality.
A seven-month-old, male Shih Tzu dog weighing 3.7 kg had an immature cataract in its left eye. A biomicroscopic examination revealed numerous vacuolations in the posterior cortices with nucleus cataracts, covered by an intact anterior lens capsule. The changes observed by ocular sonographic examination (OSG) of the left eye were hyperechoic, and a funnel-cone shape was observed posteriorly with cortex hyperechogenicity in the lens. The left eye was diagnosed as having a posterior lenticonus with congenital cataract. Phacoemulsification was performed on the left eye as diagnostic treatment of the posterior lenticonus and cataract. Postoperative OSG on the left eye revealed a V-shaped linear echo that was indicative of a posterior capsule of the lens. Moreover, it was confirmed that hyperechoic cataract material inside the lens had disappeared.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.