Both entropion and ectropion are conditions of the eyelid. They're exceedingly uncomfortable and often require surgery to correct them. Both are also disqualifying faults in the show ring.

Entropion is a hereditary condition in which the eyelid turns inward into the eye, causing the eyelashes and fur to rub against the eyeball. It is obviously irritating to the dog and usually requires surgery to correct it.

Ectropion shows itself in drooping of the lower eyelid, exposing its interior. In mild cases, your veterinarian may prescribe eye drops and antibiotic and corticosteroid ophthalmic ointment. In severe cases, surgery may be required.