Dry eyes are common ocular surface disease, among them dry eye correlated with operation is very special. After many eye surgery, quality and quantity of tear are unusual or abnormal, which can cause dynamic tear film unstable and ocular surface is damaged, resulting in operation derived eye dry. Oculists should pay more attention to understanding their causes and characteristics, and take preventive measures. Surgery had to maintain the normal structure of the tear film and reduce mechanical injury to cornea and conjunctiva.In postoperative, we should pay attention to drugs’ standardization and rationality, so that patients can get better surgical results and quality of life.