近年来，医学上发现了一种鲜为人知的视觉障碍性疾病——立体盲。所谓立体盲，就是患者多为先天性单眼弱视或屈光不正，而另侧视力正常，观察景物时，仅有健侧眼睛处于“工作”状态，双眼不能同时将所见景物的信息反馈给大脑视觉中枢。所以，在视物时缺乏立体感，只能凭经验感 In recent years, the medical discovery of a little-known visual disorder, three-dimensional blindness. The so-called three-dimensional blind, the patient is mostly congenital monocular amblyopia or refractive errors, and the other side normal vision, observation of scenery, only the healthy side of the eye in the “working” state, both eyes can not see the scenery information back to the brain Visual center Therefore, the lack of three-dimensional sense of the matter, only by sense of experience