Color Blindness and Men
Mostly men inherit color blindness. Color blindness affects about 1 in 20 men to every 1 in 200 women.
http://menshealth.about.com/od/geneticconditionsinmen/a/color_blind.htm
Ray Charles FAQ -- Blindness
Answer: Although the young Ray began to lose his sight at the age of five, not long after witnessing his brother's drowning, his eventual blindness by the ...
http://oldies.about.com/od/rbandblues/f/rayblind.htm
Blindness
Blindness has many causes. In the United States, the leading causes are diabetes , glaucoma, macular degeneration, and accidents (such as chemical burns or ...
http://adam.about.com/encyclopedia/Blindness.htm