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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.
Rough Collie – occurs at one to four years of age in the inferior or central cornea. English Toy Spaniel – occurs at two to five years of age and has a crystalline, circular appearance. German Shepherd Dog – occurs at one to six years of age and is usually oval. Golden Retriever – occurs at less than two years of age and can be progressive.
Collie eye anomaly (CEA) is a congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera. It can be a mild disease or cause blindness. It is known to occur in Smooth and Rough Collies, Shetland Sheepdogs, Australian Shepherds, Border Collies, and Nova Scotia Duck Tolling Retrievers. [63]
Some collie breeds (especially the Rough Collie, Smooth Collie, and the Australian Shepherd) are affected by a genetic defect, a mutation within the MDR1 gene, [8] formerly known as "ivermectin sensitivity", but now known to cause lowered tolerance to a wide variety of different veterinary drugs. [9]
While Rough Collies are generally resilient and healthy, there are some health problems that can affect the breed. Collie eye anomaly (CEA), a genetic disease which causes improper development of the eye and possible blindness, is a common ailment in the breed. [ 8 ]
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The three most common serious conditions that can affect Heelers are Collie eye anomaly, primary lens luxation and persistent pupillary membranes. [5] As well as these eye conditions, dogs of this breed may suffer from Patella luxation. [6]
Eye colour varies from brown to green, and occasionally eyes of differing colour occur; this is usually seen with merles. This trait is known as heterochromia. The ears of the Border Collie are also variable — some have fully erect ears, some fully dropped ears, and others semi-erect ears (similar to those of the rough collie).
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3579 S High St, Columbus, OH · Directions · (614) 409-0683