Ectropion is the medical term used to describe sagging and outward turning of the lower eyelid and eyelashes. This sagging can lead to excessive tearing, crusting of the eyelid, mucous discharge and irritation of the eye. Tearing occurs when the eyelids are not able to properly protect the corneal surface. Most cases of entropion are due to relaxation of the tissues of the eyelid as a result of aging. The surgery to repair entropion is performed under local anesthesia as an outpatient.