[Unilateral duplication of the uveal tract in a cat. Coexistence of an excess failure of formation with ocular leukosis].

A six year old domestic cat, blind in the right eye from birth, slowly lost sight in the left eye. An ophthalmological examination of the right eye revealed uveal leucosis and unilateral duplication of the uveal tract. The additional tissues were rotated through 90 degrees resulting in displacement of the lens. In the left eye evidence of a previous retinal detachment and consecutive traumatic cataract were noted. The etiology of these pathological findings is discussed.