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Collie Eye Anomaly (CEA) is a developmental disorder of the eye occurring in Collie-related dogs such as the Collie, Border Collie, Australian Shepherd and Shetland Sheepdog.
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Specifications
| Breeds | Smooth Collie, Australian Shepherd, Bearded Collie, Border Collie, Boykin Spaniel, Hokkaido, Lancashire Heeler, Miniature American Shepherd, Nova Scotia Duck Tolling Retriever, Rough Collie, Shetland Sheepdog, Whippet |
|---|---|
| Gene | |
| Organ | |
| specimen | Swab, Blood EDTA, Blood Heparin, Semen, Tissue |
| Mode of Inheritance | |
| Chromosome | |
| Also known as | |
| Year Published |
General information
Collie Eye Anomaly (CEA) is a developmental disorder of the eye occurring in Collie-related dogs such as the Collie, Border Collie, Australian Shepherd and Shetland Sheepdog. The disorder causes abnormal eye development and can potentially lead to vision loss and blindness. It has been linked to a recessive mutation to the gene NHEJ1.
Clinical features
CEA can manifest in very young dogs. Clinical signs include undersized eyeballs with a sunken appearance, a cloudy look to the eyes, and symptoms of vision loss. Opthalmological examination by a veterinarian can reveal lesions on the retinas.
Additional information
This variant is not causal in some dog breeds (e.g. Danish Rough Collie and Nova Scotia Duck Tolling Retrievers).
References
Pubmed ID: 17916641
Omia ID: 218