Deuteranomalia is a color vision genetic condition
(X-chromosome at Xq28). Approximatly 1 in 20 men and 1 in 200 women see colors in this fashion. There is partial loss of green color vision so that there is an increase in the amount of green needed in a mixture of red and green to match a given yellow. Note the changes to the green and red hues in pencils 7 through 11.
Tritanopia is a rare form of color-blindness resulting from insensitivity to blue light, causing confusion of greens and blues. It is estimated that approximately 1% of the population has this color vision condition.
Protanopia is found in approximately 1% of the male population.
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