Home » Persistent Pupillary Membranes (PPM): Symptoms and Diagnosis
Persistent pupillary membrane is a congenital condition that occurs when the tissue that forms over the eye in utero does not successfully reabsorb shortly after birth.
Persistent pupillary membrane is a birth defect. Many dogs will be born with PPM that will disappear by 3-4 months. If your dog’s eye function does not return to normal by this time, seek a veterinarian.
There are three types of PPM.
No, it can cause blindness.
A veterinarian will perform an ocular exam and a complete medical history questionnaire. The ocular exam may include pupil dilation to see further into the issue. A regular vet may refer your dog to a veterinarian ophthalmologist depending on the severity of the condition and treatment needed.
An ophthalmologist may use a combination of testing including Schirmer Tear Test, Fluorescein staining test, tonometry, aesthesiometry, ultrasonography and electroretinography.
Currently there are no standard treatments for PPM. An ophthalmologist will be able to discuss current surgical options to help remove some of the corneal cloudiness and improve vision. Depending on the condition, there might not be any options available.
Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pup’s condition, please make an appointment with your veterinarian. Or, consult a virtual vet here.