Abstract:  Visual quality is an ability which is more important than vision. Meanwhile, it is a comprehensive visual perception on object. The most distinguished difference between refractive surgery and other surgery is that refractive surgery is not only to improve vision, but also to improve visual quality. Therefore, postoperative visual quality is extremely important. Following the development of techniques, the outcomes of refractive surgery are elevated. However, some patients still have suffered low contrast sensitivity, monocular diplopia, glare, haloes etc. after refractive surgery. This article analyzes the reasons of effecting on the visual quality after surgery and the effective control measures to cause the attention to the visual quality.

Key words: corneal refractive surgery/complications, visual quality