当人们谈到眼睛的好坏时,常用视敏度(视力)来作为标准,殊不知最好的眼睛除了视力正常外,还应具有双眼合作的能力即双眼单视的功能。一个外界物体的形象,通过单眼的感觉系统,将信息传达到大脑视中枢,然后大脑中枢将分别来自双眼的物象综合成一个完整的、单一的并具有三维(左右、上下、前后)空间的物象即立体视,这就是人类最高级的视觉功能。 When people talk about the eyes of good or bad, commonly used visual acuity (eyesight) as a standard, not knowing that the best eyes in addition to normal vision, but also should have the ability to cooperate with both eyes that binocular vision. The image of an external object through the monocular sensory system, the information is transmitted to the visual center of the brain, and then the brain center will be from the eyes of the image synthesis into a complete, a single and has three-dimensional (left and right, up and down, before and after) space object That is stereoscopic vision, this is the most advanced human visual function.