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Progressive Retinal Atrophy (PRA) is caused by the destruction of the cells that register light (photoreceptors) in the back of the eye (the retina).

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Specifications

Breeds

Gene

Organ

specimen

Swab, Blood EDTA, Blood Heparin, Semen, Tissue

Mode of Inheritance

Chromosome

Also known as

Year Published

General information

Progressive Retinal Atrophy (PRA) is caused by the destruction of the cells that register light (photoreceptors) in the back of the eye (the retina). The loss of the cells begins around 7 weeks of age and slowly progresses.

Clinical features

Cats with Progressive Retinal Atrophy (PRA) can show symptoms at an early age (few weeks). The symptoms progress slowly and cats can have very compromised vision by approximately 2 years of age. Blind cats tend to have more difficulty at night, sometimes becoming more vocal and more attached to their owners. The pupils are usually more dilated in lighting conditions and affected cats also tend to carry their whiskers in a more forward position.

Additional information

References

Pubmed ID: 32386558

Omia ID: 2267

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