Abstract: Abstract: Dry eye is a kind ocular surface disease and the most common complaint of discomfort after cataract surgery. Many factors can lead to the occurrence of dry eye. With the continuous development of research on dry eye at home and abroad, the understanding of dry eye is gradually deepening. In this review, the discussion was conducted in the aspects of surgical incision, tearfilm secretory glands, operative duration, drugs and psychology，in order to find the factors related to the dry eye during perioperative period of cataract surgery, so as to help ophthalmologists to carry out clinical diagnosis and treatment better.

Key words: cataract, phacoemulsification, anxiety, depression, dry eye syndromes, ocular surface