干眼症(dry eye)是由泪液低分泌或其他原因引起泪膜异常而发生眼表上皮干变的一组疾病的总称。目前公认的干眼症是以液性泪液产生减少、黏液分泌异常和睑板腺功能障碍等各种原因引起的泪液膜液性成分的绝对和相对缺乏、眼表泪液分布异常、泪液蒸发增加为共同特征的综合征。可导 Dry eye (dry eye) is a collective term for a group of diseases caused by abnormal secretion of tears or other causes of tear film abnormalities and ocular epithelial dry lesions. The current recognized dry eye syndrome is the absolute and relative lack of liquid components of the tear film caused by a variety of causes such as decreased production of liquid tears, abnormal mucus secretion and meibomian gland dysfunction, abnormal distribution of ocular surface tears, and increased tear evaporation Syndrome of common features. Can guide