Red-Green Color-Blindness By Chima & Chidi Iroegbu

Symptoms  An inability to differentiate between red and green.  Seeing other colors in place of green( dollar bills that look blue)

Where it is/Genetics  Color blindness is an x-linked recessive disorder  The gene that causes color blindness is carried on the X chromosome, making the handicap more common among men, who have just one X chromosome, than among women.  Males inherit the trait from their mothers

History of Color-blindness  The English chemist John Dalton first wrote about color blindness in 1798 after realizing he was unable to distinguish between red and green colors.  As a result, and early name for the handicap was often called Daltonism  In 1837, August Seebeck color vision tests and found two different types of red-green color blindness with differences in severity from weak to strong

Treatment & Prevention  There is no known treatment.  Wearing colored contact lenses may help you see differences between colors, however these lenses don't provide normal color vision and can distort objects.  Inherited color blindness cannot be prevented.

What It’s like for people with red- green color blindness  A red-green color blind person is generally unable to :  interpret some chemical reactions  identify a material by the color of its flame such as lead blue  red deficient individuals cannot tell whether their piece of meat is raw or well done. Many can not tell the difference between green and ripe tomatoes or between ketchup and chocolate syrup.  Many red-green color blind people cannot tell whether a woman is wearing lipstick or not.

Famous People with Color blindness

Sources  97  blindness-topic-overview?page=2  m  s-health/page2_em.htm

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