Entropion and ectropion procedures:
Entropion is the case where the lid margin is turned in, which cause eye irritation due to the misdirect eyelashes. The entropion is usually age related, however it could be related to scaring of the eyelid conjunctiva.
Treatment is with addressing the involutional (age-related) changes, which is usually the lid laxity.
The surgery is made by reattaching the eyelid retractor muscles back to the eyelid tarsus and increasing the tone of the eyelid.