Persistent Pupillary Membranes
Persistent pupillary membranes (PPM) are congenital remnants of fetal blood vessels in the eye that may affect vision if extensive.
Detailed Description
PPM are strands of tissue that persist in the anterior chamber of the eye after birth. While most are benign, extensive membranes can impair vision or cause other ocular issues. The condition is usually detected in puppies during eye exams.
Common Symptoms
- Visible strands in the anterior chamber
- Possible vision impairment
Management Options
- Usually none required
- Topical therapy or surgical intervention in severe cases
Frequently Asked Questions
Do PPMs always affect vision?
No, most are incidental findings.
Should affected dogs be bred?
No, breeding is discouraged.
Can PPMs be treated?
Rarely necessary; treatment is only for severe cases.
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 examination by a veterinary ophthalmologist
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Preventative Measures
Screening of breeding stock
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Related Conditions
Cataracts, Corneal opacities