lacrimal gland secretory neurectomy

The lacrimal gland secretes neurotomy, and the nerves secreted by the lacrimal gland are parasympathetic fibers from the facial nerve, which enter the lacrimal gland through the lacrimal gland of the maxillary nerve. The purpose of the surgery is to cut the nerve to improve the symptoms of tearing. Treatment of diseases: excessive tear secretion Indication Unable to repair due to severe damage to the lacrimal passage, to reduce the troubles caused by intractable tears. Contraindications Serious conjunctival scars and sputum adhesions. Preoperative preparation 5 ml of 2% lidocaine was used for infiltration anesthesia in the lateral space of the eyeball and the lateral wall of the ankle, and under the skin of the external iliac crest. Surgical procedure 1. Cut the skin from the lateral malleolus to the temporal side, about 25mm long, and pull the skin up and down. 2. Separate the orbicularis muscle along the muscle fibers, open the muscles, and expose the periosteum and external hemorrhoids. Cut the external malleolus and the lateral ligament, and cut the upper and lower septums 15mm each along the rim. 3. Pull the content to the side. The pupil was found about 15 mm below the lateral nodule and 5 to 10 mm after the temporal margin. The vascular nerve was seen to penetrate, and the nerve was the facial nerve. 4. Find the nerve along the nerve, the phrenic nerve below, and the phrenic nerve and tear branch upward, and cut off the nerve. 5. Layered sutures, sutured the septum with a 4-0 nylon thread, and sewed the outer membrane to the periosteum. Suture the orbicularis muscle. The skin is sewn 4 to 5 needles. Gently bandage with a bandage. complication Very few patients have dry eyes after surgery, and artificial tears (such as balance solution) can be relieved.