Dog border collie has a tendency to certain diseases, including dysplasia of the hip joint – a hereditary disease; progressive retinal atrophy; epilepsy – sometimes inherited;collie eye anomaly – an inherited condition that causes changes and abnormalities in the eye – sometimes they can lead to blindness. These changes may include choroidal hypoplasia (abnormal development of the choroid), coloboma (a defect in the optic nerve head), staphyloma (thinning of the sclera), and retinal detachment. Usually manifests itself before the age of two; allergy.