What is Color Blindness?

Color blindness is a disorder of ability of differentiating the colors. It is a widespread disease which can be mainly observed in the males. Not to be able to differentiate red and green can be observed as a type which is most frequently seen. In some cases that can rarely be seen, it can be argued that cases of not to be able to differentiate all colors and cases of seeing the world black and white can be encountered. Color blindness can be seen in per 20 males and per 200 females. Most of people cannot realize that they are color blind.