An estimated 300 million people worldwide are color-blind. This typically means they can't distinguish certain shades of color, they struggle to tell how bright colors are or, more rarely, they can't see any colors at all. Color blindness doesn't affect males and females equally, though. According to Cleveland Clinic, the condition affects about 1 in 12 males, compared with 1 in 200 females.
So why are so many more males color-blind than females?
