With the development of society, the new requirements for visual health are put forward. In the past, visual acuity and contrast sensitivity were used to evaluate the visual function of human eye, but it is subjective and limited, not really reflecting human eye's visual function. In order to pursue a more sensitive and accurate objective evaluation method, experts at home and abroad make some exploratory research on visual quality. The study confirmed that the scattering is an independent factor affecting the visual quality of human eye, it can make a more scientific evaluation of visual function.This article summarizes the influence of scattering for the visual quality of human eye, according to related research at home and abroad in recent years.