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色觉异常或色觉障碍(以下简称色障)可分先天性色障(即色盲),它是X—性连锁隐性遗传病,不伴视力障碍。后天性色障是因眼底疾病所致的眼病性色障,色障仅限于患眼。患眼有视力障碍,视野改变并有中心暗点,可单眼或双眼色障,如疾病治愈,视力恢复,色障也就消失。著者自80～86年间,对视神经与黄斑病变的色觉情况作一报导:
Color vision abnormalities or color vision disorders (hereinafter referred to as color barrier) can be divided into congenital color (ie, color blindness), which is X-linked recessive genetic disease, without visual impairment. Acquired color vision is due to eye diseases caused by ocular pathology, color vision is limited to the affected eyes. Eyes with visual impairment, visual field changes and dark spots can be monocular or binocular color vision, such as disease cure, visual acuity, color barriers also disappear. Author from 80 to 86 years, on the optic nerve and macular degeneration of the color to make a report: