上睑内翻是临床上常见的沙眼并发症之一。睑内翻使睫毛在角结膜表面摩擦,轻者流泪、异物感,重者造成角膜血管翳、角膜溃疡而失明。睑内翻矫正手术有多种术式,常用的为睑板楔形切除术。临床上多见因矫正不足而多次手术的病人,给病人造成了痛苦。这种手术病人多为老年人,麻醉药中 Blepharoplasty is one of the most common trachoma complications in the clinic. Eyelid to eyelashes in the corner of the conjunctival surface friction, the light of the tears, foreign body sensation, severe corneal angina caused by corneal ulcer and blindness. There are a variety of surgical procedures for tonoplasty, commonly used for tarsal cuff resection. Clinically, many patients due to insufficient correction and multiple surgeries, causing pain to the patient. This surgical patients are mostly elderly, anesthetics