Entropion
Entropion is the most common congenital defect of the eyelids. It may also be caused by injury or long-standing disease of the lids. Some cases are complicated by blepharospasm.
Breeds that are commonly affected with this are the Chow Chow, Irish Setter, Golden Retriever, Chesapeake Bay Retriever, Great Dane, Greay Pyrenees, Saint Bernard and English Bulldog.
Most commonly it affects the lower eyelid. In Bloodhounds and Saint Bernards, and in other breeds with large heads and loose facial skin, entropion can be found in the upper lid as well. The condition requires surgical correction, and sometimes more than one surgery is required.