Inflammation Pure retinitis without involvement of other intra-ocular structures is rare. Frequently it is seen in conjunction with endophthalmitis or uveitis. Most appear to be inherited as autosomal recessive traits. Degenerative changes are primarily in the photoreceptor layer. It is possible that ischemia underlies many of these retinopathies.
Retinal dysplasia is common in dogs and cattle.
In these breeds the condition is reported to be inherited as an autosomal recessive trait. Retinal dysplasia may occur from many causes. Severe damage or necrosis of the developing retina from infectious diseases including BVD, Feline Panleukopenia, Feline Leukemia, Canine Herpes virus, and Blue Tonque. Glia scars, especially in those secondary to retinal necrosis e. Loss of retinal cells 5. PRA inherited as an autosomal recessive tract is always bilateral and progressive.