先天性色觉障碍通常称为色盲，它不能分辩自然光谱中的各种颜色或某种颜色。而对颜色的辨别能力差的则称色弱，它与色盲的界限一般不易严格区分，只不过轻重程度不同罢了。色盲又分为全色盲和部分色盲（红色盲、绿色盲、蓝黄色盲等）。色弱包括全色弱和部分色弱（红色弱、绿色 Congenital color disorder, often referred to as color blindness, does not distinguish the various colors or colors in the natural spectrum. The poor ability to distinguish between the color, said the color weakness, it is generally not easy to strictly distinguish the boundaries of color blindness, but the severity of different Bale. Color blindness is divided into panchromatic and partial color blindness (red blind, green blind, blue-yellow blind, etc.). Color weakness include full color weakness and partial color weakness (red weak, green