Well, for people who have color blindness, it means that they have trouble seeing red, green, or blue or a mix of these colors. So you can just check your child with this evidence. And in common, color blindness is a genetically inherited condition. There are many reasons which can lead to color blindness. Some kind of eye problem, including injury of the eye, aging or as a side effect of using certain medications or drugs can be possible. For your child situation, you need to check if he gets inherited color blindness or not, for inherited color blindness will last forever and it can get worse as the time goes by. On the other hand, partial color blindness can be treated by wearing corrective glasses, surgery, or by quitting with consuming certain drugs or medications.