John Dalton was the first person to describe color blindness; which is a visual impairment that prevented him from recognizing all the color hues perceived by normal eyes resulting

Take our color blind test and find out if you suffer from this disorder and what you should do if you do. 

Color blindness afflicts approximately 8% of all males and less than 1% of all females. But what does it mean to be color blind? How is it tested and what are the available treatments?

There are 3 main types of color blindness that are broken down as red-green color deficiency, blue-yellow color deficiency and complete color blindness. But what causes these disorders and how due they impact a person's vision?