色盲是指缺乏或完全没有辨别色彩的能力。通常说的色盲多是指红绿色盲。人类的视网膜上有一种锥细胞,这是一种有红、绿、蓝三种感光色素的感光细胞,每一种感光素负责对一种原色光产生兴奋,对于其他两种原色光产生的反应程度则较弱。当其中某种色素缺乏的时候,就会产生对那种颜色的感觉障碍,于是呈现出色盲或者色弱的症状。通过下面一组图片,可以测测自己的辨色能力: Color blindness refers to the lack of or no ability to discern color. Color blindness is usually referred to as red-green blindness. Human retina has a cone cell, which is a photoreceptor cell with three kinds of light-sensitive red, green and blue light-sensitive elements, each light-sensitive element is responsible for the excitement of a primary light, for the other two primary light reaction The degree is weaker. When one of the pigments is lacking, it produces a sensory disturbance of that color and presents with symptoms of color blindness or color weakness. Through the following set of pictures, you can test your ability to identify color: