Entropion is the medical term used to describe rolling inward of the lower eyelid. Most cases of entropion are due to relaxation of the tissues of the eyelid as a result of aging. Lashes rubbing against the eye can lead to tearing, crusting of the eyelid, mucous discharge, a feeling that something is in the eye, irritation of the cornea, and impaired vision. The surgery to repair entropion is performed under local anesthesia as an outpatient.