Collie eye anomaly
Hereditary
A congenital, inherited malformation of the eye affecting the choroid, retina and optic disc, seen in collie-type and related herding breeds. Severity ranges from mild choroidal hypoplasia with no visual effect to colobomas and retinal detachment causing blindness. It is caused by a deletion in the NHEJ1 gene and is present from birth.
Quick facts
- Type:
- Congenital
- Typical onset:
- Congenital
- Body systems:
- Ophthalmic
- Affected species:
- DOG
Sources & references
- Merck Veterinary Manual — Outlines collie eye anomaly as a congenital choroidal and scleral malformation of herding breeds.
- OMIA — OMIA phene entry for collie eye anomaly associated with NHEJ1 in the dog.
This content is for educational purposes and is not a substitute for professional veterinary advice. If you are worried about your pet, contact your veterinarian.