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上睑下垂系日常诊疗中常见之疾患,其成因在所有病例中并非都能够明确,病因诊断多较困难,而其治疗又随病因之不同而异,由此可见,正确的鉴別诊断十分重要。上睑下垂之种类及治疗方法,在许多眼科书籍及论文中均有记述,以下根据作者的经验,参考文献,试作一分类(各种病例所附照片从略)。Ⅰ、先天性上睑下垂 1.上直肌作用正常(单纯性上睑下垂)。最常见,一般认为因提上睑肌发育不全所致,又因其下垂程度的不同,分为轻度(提上睑肌功能良好,横纹肌纤维清晰可见)、中度(约占54％)和高度(提上睑肌功能不良,横纹肌组织几不可见)三种,上睑下垂属先天性者占90%,其中75%属单眼,25％属双眼。 2.上直肌作用减弱。可为上直肌自身发育
Common causes of ptosis in the routine diagnosis and treatment of diseases, its causes in all cases are not clear, more difficult to diagnose the cause, and its treatment varies with the cause, we can see that the correct differential diagnosis is very important . The types and treatment of ptosis are described in many ophthalmic books and theses. The following is based on the author’s experience, references, try a classification (photos attached to various cases omitted). Ⅰ, congenital ptosis 1. Upper rectus normal (simple ptosis). The most common, generally considered to be due to levator muscle dysplasia caused due to its degree of droop is divided into mild (levator muscle function well, striated muscle fibers clearly visible), moderate (about 54%) and Height (mention levator muscle dysfunction, striated muscle tissue few invisible) three, ptosis is a congenital person accounted for 90%, of which 75% are monocular, 25% belong to the eyes. 2 on the rectus muscle function weakened. Upper rectus muscle can self-development