Entropion is a deformity in which the lid margin rolls inward toward the eye. The direction of the eyelashes then turns inward after the lid is turned inward, which is called entropion. In this case, the eyelashes wear away at the cornea, causing pain, tearing and, over time, corneal ulcers, vision loss and even blindness. The consequences of upper lid entropion are more severe than those of lower lid entropion. There are two types of entropion, non-scarring and scarring, depending on the cause of the condition. (1) Non-scarring entropion: This occurs for two reasons: (1) it is mostly self-healing, but if it causes keratitis, surgery is required; (2) Age-related entropion: it is mainly seen in the lower lid and is caused by spasmodic contraction of the orbicularis oculi muscle of the lid. In the elderly, the eye sockets have less fat, the skin is lax, the muscle tone is reduced, and the eyeballs are sunken and atrophied, thus causing the eyelid to turn inward. (1) Simple suture ligation: three pairs of mattress sutures are inserted through the conjunctival surface of the inferior fornix and exited through the front of the lid to 2-3 mm from the lower lid margin, with a 3-4 mm spacing between the two sutures, which are fixed on a small cotton pad and removed 5-7 days after surgery; (2) Excision of some eyelid skin sutures: mainly for age-related lid entropion, a skin incision is made 2 mm from the lower lid margin parallel to the The skin incision is made parallel to the lower lid margin, and the orbicularis muscle is peeled away to reveal the orbicularis muscle underneath, and a strip of skin, subcutaneous tissue, and orbicularis muscle is cut out in the direction of the incision, penetrated through the skin surface of the lower edge of the incision, passed through the orbital diaphragm to the lower edge of the lower lid plate, and then sutured from the skin surface of the upper edge of the incision. 2. Scarring lid entropion: This can be caused by trachoma, trauma, burns, and chemical erosion deformities. (1) Hotz method: mainly corrects scarring entropion of the upper lid. The skin is incised along the heavy lid line, a strip of lid is excised, the needle is stabbed in from the lower edge of the skin incision, the needle is exited and then the upper edge of the lid is sutured, the needle is exited between the lid and the skin, through the upper edge of the skin incision, and the stitches are removed 5-7 days after surgery; (2) Uchida method: the skin is incised along the incision line and a narrow strip of skin and orbicularis oculi muscle is excised, the eyelid is turned over, the lid is cut along the lid furrow, the lid is stabbed in from the front of the upper lip of the lid incision, through the lid incision (3) Conjunctival lid excision method: expose the conjunctiva of the fornix, cut the lid conjunctiva and lid plate 2-3 mm from the lid margin, peel the diamond-shaped excised lid flap in front of the lid plate, pierce the skin through the conjunctiva forward with three sutures of a double needle, and tie three knots.