Research Progress of the Effects of Monocular Visual Impairment on Binocular Vision
TAN Si-lei1,2, CHEN Jie-min2, WANG Meng2, ZHOU Shu2, XIA Wen-tao2
1. Department of Forensic Medicine, Medical College of Soochow University, Suzhou 215123, China; 2. Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
Binocular vision refers to a progress of analysing and integrating the binocular visual signals into a whole and three-dimensional sensory perception by higher nerve centre. In this process, the interac- tion between the two eyes results in the changes of output signal, which is called binocular interaction. Through a series of subjective and objective experiments, it can be concluded that binocular interaction can be divided into three types： facilitation, summation and suppression, and the forms of binocular interaction in different visual states are different. In general, the visual signal is processed by binocular interaction, so that there are some differences between binocular vision and monocular vision. The extent of the difference can be affected by the damage of monocular vision and then affects the binocular vision. Thus, it is necessary for forensic scientists to further study the effects of the monocular visual impairment on visual function. Based on relevant data, this paper reviews the mechanism of the monocular visual impairment in binocular vision, the research methods and the application prospect in forensic science.