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This is a group of genetic disorders that are grouped together.  They include Generalized Retinal Progressive Atrophy and Central Progressive Retinal Atrophy and Neuronal Ceriod Lipofuscinosis and Hereralopia and Sudden Acquired Retinal Degeneration.  In these disorders, the photoreceptors in the eyeball are affected in a variety of ways.  In some cases, the night vision or bright light vision are affected and in others, the central vision, but not the peripheral vision is affected.  In some cases, complete blindness can occur.  The variety of disorders is further complicated with early onset and late onset variations.  Two things are common within this set of disorders.  The end prognosis is usually blindness and it is a non-painful condition.  There are certain breeds more prone to these: Akita, Alaskan Malamute, American Cocker Spaniel, Belgian Shepherd, Border Collie, Briard, Bullmastiff, Cardigan Welsh Corgi, Dachshund, English Cocker Spaniel, English Mastiff, Golden Retriever, Irish Setter, Labrador Retriever, Miniature Poodle, Miniature Schnauzer, Norwegian Elkhound, Papillon, Portuguese Water Dog, Rough Collie, Samoyed, Shetland Sheepdog, Siberian Husky, Smooth Collie, Tibetan Spaniel, Tibetan Terrier, and Toy Poodle.  Symptoms can include:

  • Loss of Night Vision
  • Inability to See in Bright Light
  • Dilated Pupils
  • Loss of Central Vision While Retaining Peripheral Vision
  • Clumsiness
  • Bumping into Furniture
  • Reluctance to Move
  • Fearful in Dim Light
  • Barking at Night
  • Gradual Blindness
  • Sudden Blindness