Iris Sphincter Dysplasia
Iris sphincter dysplasia is a congenital abnormality of the iris muscle, leading to light sensitivity and potential vision issues.
Detailed Description
This condition involves underdevelopment of the iris sphincter muscle, resulting in poor pupillary constriction. Affected dogs may have photophobia, abnormal pupil shape, and increased risk of cataracts or glaucoma.
Common Symptoms
- Light sensitivity
- Abnormal pupil shape
- Vision difficulties in bright light
Management Options
- Management of symptoms (e.g., tinted lenses, avoiding bright light)
Frequently Asked Questions
Does iris sphincter dysplasia cause blindness?
Not usually, but it can cause discomfort and light sensitivity.
Can it be detected early?
Yes, via veterinary ophthalmic exam in puppies.
Is it hereditary?
Yes, likely autosomal recessive.
Is treatment needed?
Usually only for severe light sensitivity.
Should affected dogs be bred?
No, to reduce prevalence.
Condition Details
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Typical Age of Onset
Congenital; present at birth
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Testing Available
Yes
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Diagnosing Methods
Slit-lamp biomicroscopy; Pupillary light reflex testing
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Preventative Measures
Eye screening of breeding stock
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Related Conditions
Progressive retinal atrophy, Cataracts