I just skimmed this but it looked pretty good. A link at the bottom of the second page takes you to charts that test for color blindness. * SHADES OF GRAY: COLOR BLINDNESS IN MEN If you've always suspected that the world is a lot more colorful to your friends and family, you may be one of the 9 million people (primarily men) who are "color blind." What do color blind people see - and is it the same for everyone? http://www.bewell.com/healthy/man/1998/colorblnd/index.asp Joyce Morris Public Health Sciences Wichita State University
