Progressive retinal atrophy

Progressive retinal atrophy (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. Similar to retinitis pigmentosa in humans,[1] it is characterized by the bilateral degeneration of the retina, causing progressive vision loss culminating in blindness. The condition in nearly all breeds is inherited as an autosomal recessive trait, with the exception of the Siberian Husky (inherited as an X chromosome linked trait) and the Bullmastiff (inherited as an autosomal dominant trait).[2] There is no treatment.

  1. ^ Petersen-Jones, Simon M. (2003). "Progressive Retinal Atrophy: An Overview". Proceedings of the 28th World Congress of the World Small Animal Veterinary Association. Retrieved 2007-03-10.
  2. ^ "Inherited Retinopathies". The Merck Veterinary Manual. 2006. Retrieved 2007-03-10.
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