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Ophthalmologic

This is a Eyes condition.

Canine Multifocal Retinopathy

What is CMR1?

This is a non-progressive retinal disease that, in rare cases, can lead to vision loss. CMR is typically only identified when a vet examines the eye which, in dogs with CMR, reveals multiple retinal abnormalities that range from small, flat folds (called "retinal folds") to larger, irregularly edged raised lesions (called "geographic lesions"). Dogs with larger lesions can suffer from vision loss. CMR is fairly non-progressive; new lesions will typically stop forming by the time a dog is an adult, and some lesions will even regress with time.

What are the signs & symptoms that develop in affected dogs?

Most dogs affected with CMR show no clinical signs. Mild vision loss may be apparent in the worst cases and include bumping into walls and a reduced ability to track toys or other objects.

When do signs and symptoms develop?

CMR typically develops in puppies at 11 to 16 weeks and becomes stable by the time they are 1 year old.

How do vets diagnose this condition?

CMR is typically only identified when a vet examines the back of the eye which, in dogs with CMR, reveals multiple retinal abnormalities that range from small, flat folds (called "retinal folds") to larger, irregularly edged raised lesions (called "geographic lesions").

How is this condition treated?

Currently, there is no treatment for CMR. However, CMR rarely affects vision to a significant degree, and as we stated, even the associated retinal abnormalities can regress over time.

What actions should I take if my dog is affected?

Carefully monitoring your dog's vision and seeking a veterinary ophthamologist's opinion if you are concerned are the best ways you can help your affected dog.

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