Two-Dimensional Ultrasonography of the Lens in Diagnosis of Canine Cataract and Nuclear Sclerosis

Abstract

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.

Eye

“…6,116 A cataract may develop secondary to reduced nutrition in a luxated lens. The anterior and posterior cortices, the nucleus, or all of these become echogenic 111 and may progress to include the entire lens. The anterior and posterior cortices, the nucleus, or all of these become echogenic 111 and may progress to include the entire lens.…”

“…Standards for quantitative assessment of the anterior chamber and drainage angle structures have been proposed in literature on ultrasonography in humans. 111 Figure 5-34 shows a cataract lens before and after phacoemulsification. 25 Identification of the scleral spur, a structure not present in the dog or cat eye, is necessary for semiquantitative measurement.…”

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

“…When abnormal changes in the lenses and posterior segments were seen, videos and photographs were taken. The eyes were flushed with saline after examination [9,10]. A progressive cataract which was later operated by phacoemulsification, was carried out in one PHPV eye.…”

“…Embryonic ocular tumors are infrequent, and their major diagnostic clue would be an enlarging intraocular mass, with resultant pain and global enlargement. Cataract, retinal detachment, and ocular tumors can also be diagnosed by USG [4,9,10,17]. Endophthalmitis is an inflammatory problem, with progressive signs of ocular and systemic infection [11].…”