Entropion is a condition where the eyelids roll inward, causing the eyelid hairs to contact the surface of the eye. Either upper eyelids, lower lids, or both, may be involved. Most often both eyes’ lids are affected. This condition is associated with discomfort and may result in damage to the eye which may be severe enough to cause partial or complete loss of vision. Squinting and tearing are the most common signs observed.
Entropion is seen as an inherited condition in many breeds of dogs, including the Shar Pei, English Bulldog and Chow Chow. Often the severity of the entropion is related to the amount and weight of the skin and wrinkles covering the head and face and the conformation of the skull.