上睑下垂是一种常见的眼部畸形,其发病率为0·56%,居先天性眼病发病率的第2位。下垂的上睑不仅影响患者外观,更会造成遮盖性弱视,四岁以下患儿视力障碍率高达78·2%,因此,矫治上睑下垂意义重大。国内、外的眼科医生和整形外科医生为矫治上睑下垂设计了上百种手术[1]。在国外,可 Blepharoplasty is a common ocular deformity with a prevalence of 0.56%, ranking the second most common cause of congenital ocular disease. The drooping upper eyelid not only affects the appearance of the patient, but also causes occult amblyopia. The rate of visual impairment in children under four years of age is as high as 78.2%. Therefore, correcting ptosis is of great significance. Ophthalmologists and plastic surgeons at home and abroad have designed hundreds of surgeries for the correction of ptosis [1]. In foreign countries, may