Progressive retinal atrophy (dominant PRA, AD-PRA)

Progressive retinal atrophy (dominant PRA, AD-PRA) is a hereditary disease which can be tested with a DNA test. Progressive retinal atrophy (PRA) in dogs is a group of genetically heterogeneous inherited retinal disorders characterized by progressive degeneration and death of photoreceptor cells. PRA in English Mastiffs and Bullmastiffs (AD-PRA) is an autosomal dominant disorder of rhodopsin, the visual pigment of rod photoreceptors. Rod vision can be normal early in life and degeneration slowly spreads. Degeneration of the retina can be identified in puppies at six weeks of age and at first causes night blindness. Night blindness progresses gradually to blindness and at the age of 1 to 2 years, most affected dogs are totally blind. 

Inheritance: autosomal dominantread more

Mutation:  RHO gene

Genetic test: The method used for genetic testing is extremely accurate and allows complete differentiation between affected animals, carriers and healthy dogs. DNA testing can be done at any age. 

DNA test sample: EDTA whole blood (1.0 ml) or buccal swabs. Detailed information about sampling can be found here.


42.70 €

  • You can order free sampling kit.
  • Only one sample is required for each animal, even if you order several tests.
  • Samples are stored for the option to order additional tests.
  • We offer expert assistance in interpreting the results.
Suitable for breeds
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