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Collie eye anomaly : ウィキペディア英語版 | Collie eye anomaly Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs, which affects the retina, choroid, and sclera. It can be a mild disease or cause blindness. CEA is caused by a simple autosomal recessive gene defect. There is no treatment. ==Affected breeds== It is known to occur in Scotch Collies (smooth and rough collies), Shetland Sheepdogs, Australian Shepherds, Border Collies, Lancashire Heelers, and Nova Scotia Duck Tolling Retrievers.〔(【引用サイトリンク】 work=Collie Eye Anomaly Discovered In The Nova Scotia Duck Tolling Retriever ) 〕 Frequency is high in Collies and Shetland Sheepdogs, and low in Border Collies and NSDTRs.〔 In the United States, incidence in the genotype of collies has been estimated to be as high as 95 percent, with a phenotypic incidence of 80 to 85 percent.
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