Entropion is the inward rolling of the eyelid, which usually affects the lower eyelid on a dog. When present in a dog, it is usually found in both eyes. It causes an impairment of vision and irritates the dog’s eyes causing the eyes to tear and the dog to rub them. It generally occurs before a dog turns a year old but surgery should be held off until the dog reaches adulthood. The treatment is multiple surgeries, in a gradual process so that the dog is not at risk for Ectropion, which is a rolling out of the eyelid