EN
Collie with other several breeds share collie eye anomaly (CEA). It is an inherited and congenital eye diseases affecting choroid and sclera. Affected dogs share deletion in intron 4 of the NHEJ1 gene. The symptoms and signs can vary among affected dogs within one breed. CEA is not progressive in the usual sense. The lesion appears as an area lateral to the optic disc. In severely affected dogs, there are problems with the vision. The genetic test should be done to identify the genetic status of dogs. The CEA test is done on a sample of blood. The direct PCR method using a PICOTM Thermal Cycler was applied.