Well, generally speaking, first, we have to talk about the causes of color blindness. As we know that the causes of color blindness can be the improper work or absence of one of three cones in our eyes, which are responsible for distinguishing colors. While, in daily life, some kind of eye problem, such as injury of the eye, aging or as a side effect of using certain medications or drugs can also lead to color blindness. And the aging can be the heaviest risk of getting color blindness. So just be careful about it. Of course, Color blindness can be a genetically inherited condition. And it usually occurs due to the genetics, and is passed from one generation to another.