Image: ConeMosaics

Description: Illustration of the distribution of cone cells in the fovea of a individual with normal color vision (left), and a color blind (protanopic) retina. Note that the center of the fovea holds very few blue-sensitive cones.
Title: ConeMosaics
Credit: http://rit-mcsl.org/fairchild/WhyIsColor/images/ConeMosaics.jpg
Author: Mark Fairchild
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