色盲症,又称为道尔顿症,分先天性色盲和后天性色盲,先天性色盲为性连锁遗传,男多于女,双眼视功能正常而辨色力异常。患者常主觉辨色无困难,而在检查时发现。后天性多继发于一些眼底疾病,如某些视神经、视网膜疾病,故又称获得性色盲。
到底什么是色盲症,你又是怎么发现自己有色盲症的?
What exactly is colour-blindness and how do you find out if you have it?
同样的缺陷导致了大多数常见的人类双色色盲症。
A similar deficiency accounts for the most common form of dichromatic color blindness in humans.
有些人分别不出红色和绿色,因为他们患有色盲症。
Some people can't tell red from green, as they are color-blind.
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