When a dog's eyelids roll inwards, hair rubs on the surface of the eye each time the dog blinks. This causes pain, and increased tear production, and will eventually damage the cornea if left untreated.If entropion has developed because of a condition that will eventually resolve, your vet may temporarily suture the eyelids until the eyelids return to normal. In other cases, surgery may be necessary to permanently repair abnormal eyelid anatomy.