The symptoms for color blindness are based on the extremeness of the disease. Sometimes, people may not even know that they are color blind. They probably don't even know that they see color differently than anyone else. In other cases, people's eyes can be severely affected, and they can only make out a few shades of color. There are certain times when people are only capable of seeing black, white, and gray. Color Blindness can also lead to other vission loss, or someone might even turn out to be blind.
Color Blindness- Topic Overview. 31 Oct. 2007. 26 Feb. 2009
What is Color Blindness?. 1 Oct. 2007. 26 Jan.