Hereditary Eye Diseases
Hereditary cataracts and progressive retinal atrophy (PRA) are genetic eye disorders that can lead to vision impairment or blindness in affected dogs.
Detailed Description
Cataracts involve clouding of the lens, while PRA is a group of degenerative retinal diseases causing progressive vision loss. Both are inherited and can significantly impact quality of life. PRA is most often the late-onset form in many breeds.
Common Symptoms
- Cloudy or bluish appearance to the eye
- Vision impairment
- Night blindness
- Dilated pupils
- Eventual total blindness
Management Options
- Cataract surgical removal (phacoemulsification)
- Environmental management for PRA
- Management of secondary complications
Frequently Asked Questions
Are hereditary eye diseases common in dogs?
Hereditary eye diseases are present in many breeds, but prevalence varies; regular screening is advised for at-risk breeds.
Can PRA be treated?
There is no cure for PRA, but environmental management can help affected dogs adapt.
Condition Details
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Typical Age of Onset
Cataracts: variable, often middle-aged to older dogs; PRA: typically 3-8 years
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Testing Available
Yes
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Diagnosing Methods
Slit-lamp biomicroscopy; Indirect ophthalmoscopy; Electroretinography for PRA
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Preventative Measures
Breeding only dogs with clear eye exams; Genetic testing where available
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Related Conditions
Nuclear sclerosis, Retinal detachment