Progressive Retinal Atrophy (PRA)
A group of inherited retinal degenerations causing progressive vision loss and eventual blindness.
Detailed Description
PRA is a collective term for several genetic diseases that cause degeneration of the photoreceptor cells in the retina. The condition is painless but leads to night blindness, then complete blindness. Management focuses on adapting the environment for vision loss.
Common Symptoms
- Night blindness
- Dilated pupils
- Increased eye shine
- Bumping into objects
Management Options
- No cure; management focuses on adapting environment for vision loss
Frequently Asked Questions
Can PRA be prevented?
Only through responsible breeding and genetic testing.
Is PRA painful?
No, it is not painful.
Condition Details
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Typical Age of Onset
3–7 years (middle-aged), but varies
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Testing Available
Yes
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Diagnosing Methods
Ophthalmic examination; Electroretinography (ERG); Genetic testing
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Preventative Measures
Genetic testing of breeding stock
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Related Conditions
Cataracts, Sudden acquired retinal degeneration syndrome (SARDS)