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概况当一只眼平直往前注视某一点,而同时可以见到的空间,即我们的“视野”范围。注视的那一点,即我们的“中心视力”,它只占视野上约5°范围。中心视力以外的视力又称为“周边视力”,它是非常重要的视功能之一,对保卫机体的安全有密切的关系。在现代化工农业建设事业中,合格的中心视力固然重要,但视野的完整也是同样的重要或更重要。某些国家对汽车司机及飞行员的体格检查对视野都定出了合格要求。有不少疾病可以用视野协助诊断和定位。颅内病变及一些中毒性疾病,如烟中毒、乙胺丁醇
Overview When one eye looks straight ahead at a certain point, at the same time you can see the space, that is, our “field of vision” range. The point of attention, our “center of vision”, accounts for only about 5 ° of the field of view. Vision outside the eyesight, also known as “peripheral vision”, it is one of the most important visual function, to defend the body’s security are closely related. In the modern construction of chemical industry and agriculture, qualified central vision is of course important, but the vision is also equally important or more important. In some countries, the physical examinations of motorists and pilots have set a good standard of vision. There are many diseases can be used to help diagnose and visual field positioning. Intracranial lesions and some toxic diseases, such as cigarette poisoning, ethambutol