EN
Retinal dysplasia is an abnormal growth and differentiation of the retina during the embryonic and early postnatal life. It is characterized by linear folds of the sensory retina and the formation of rosettes composed of variable numbers of neuronal cells. The morphologic classification of retinal dysplasia in dogs includes single or multiple folds, geographic retinal dysplasia, and retinal dysplasia accompanied by retinal detachment and by other systemic abnormalities. There are multiple potential etiologies for retinal dysplasia, including genetic mutations, viruses, toxins and irradiation. Heritable forms of retinal dysplasia have been reported in many breeds of dogs. Mutations that induce retinal dysplasia have not yet been identified. The aim of this paper was to present selected aspects of retinal dysplasia in dogs and cats.