ptosis ['toʊsɪs]

例句:

• To determine the factors causing diplopia and ptosis after cataract extraction.
  目的:探讨白内障术后复视及上睑下垂的机制.
  
• To sum up the etiology, manifestations, diagnosis and surgical techniques of ptosis.
  总结上睑下垂的病因 、 临床表现 、 诊断及手术方法.
  
• Finally, the application of the anatomy in the ptosis surgery is discussed.
  讨论了上述解剖在上睑下垂外科中的意义.