Intraocular Larva Migrans in Dogs

The clinical and histologic features are described in 4 cases of intraocular larva migrans in dogs. Clinically, a small, raised, greyish nodule about 1/4–1/6 the diameter of the cptic disc was visible on the surface of the retina. In 3 of the cases, the lesion was recognized during ophthalmoscopic examination, and in one it was discovered histologically. The lesion is a granuloma resembling those seen in other organs of dogs affected by visceral larva migrans, and contains nematode larvae of the genus Toxocara.