Macular Corneal Dystrophy, MCD
This condition causes abnormal corneal accumulation of complex carbohydrates called glycosaminoglycans. The cornea is the surface of the eye.
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Signs and symptoms
You will notice the surface of your dog's eyes becoming cloudy. They may or may not have trouble with vision: bumping into walls, hesitant on steps, and cautious in unfamiliar locations.
This is a disease of middle aged dogs. -
Diagnosis
Veterinarians perform a complete ocular exam and also genetic testing to diagnose this condition.
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Treatment
Currently there is no cure for canine MCD, though in humans, a corneal transplant is the gold standard of treatment.
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What to do if your dog is at risk
Actions
- Talk to your vet about your dog’s MCD result so you can work together to plan their ongoing care and monitoring.
- Schedule regular eye exams with your vet or a veterinary ophthalmologist to track any changes in your dog’s corneas or vision.
- If your dog’s vision is affected, keep furniture in the same place, use verbal cues, and guide them on a leash in new or unfamiliar areas.
- Products such as protective halos can also help dogs navigate safely if their vision declines.
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Genetic Information
This mutation was first described in the Labrador Retriever.
This mutation is inherited in an autosomal recessive manner; that is, a dog requires two copies of the mutation to show signs of the disease.
Gene names:
CHST6 ‐ chr
Inheritance type:
recessive
Citations:
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Breeds affected
This health condition affects the following breeds
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