There exist several inherited and acquired diseases or disorders that can affect the Retina. A few of them are:Retinitis pigmentosa is given as a group of genetic diseases, which affect the Retina and also cause the loss of peripheral vision and night vision.Macular degeneration is a term used to identify a group of diseases in which central vision is lost due to the death or deterioration of cells in the macula.Retinal diseases in the dogs are progressive retinal atrophy, suddenly acquired retinal degeneration.