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What is Retinal dysplasia and explain in detail?
Retinal dysplasia is an eye disease affecting the retina of animals and, less commonly, humans.  It is usually a nonprogressive disease and can be caused by viral infections, drugs, vitamin A deficiency, or genetic defects.  Retinal dysplasia is characterized by folds or rosettes (round clumps) of the retinal tissue.

Retinal dysplasia in dogs
Most cases of retinal dysplasia in dogs are hereditary.  It can involve one or both retinas.  Retinal dysplasia can be focal, multifocal, geographic, or accompanied by retinal detachment