Which disorder is characterized by a lack of proper vision often found in certain breeds?

The disorder characterized by a lack of proper vision, often found in certain dog breeds, is Progressive Retinal Atrophy (PRA). This genetic condition leads to the degeneration of retinal cells, which can result in progressive vision loss and eventual blindness. The primary issue is the deterioration of the photoreceptor cells in the retina, which are responsible for converting light into visual signals. This condition typically manifests in middle-aged to older dogs, and certain breeds like Cockers, Dachshunds, and Golden Retrievers are more prone to this hereditary issue. Recognizing the signs and understanding that it is an inherited disease helps in early diagnosis and management, even though there is currently no cure for PRA.