(1) The genetic cause has been determined for several color vision defects, achromatopsia (the loss of all color vision), blue monochromatism, protanopia, deuteranopia , and enhanced S-cone syndrome.(2) Red-green deficiency ( deuteranopia ) is the most frequently diagnosed deficiency.(3) But it's important to remember that a measurable percentage of men have red-green colorblindness ( deuteranopia ); instructing them to click the green box for yes or the red box for no, for example, should be avoided.(4) Here's a handy list: primary atypical pneumonia, humectant, lapis lazuli, magniloquent, magnetohydrodynamic, deuteranopia , bryology, vorlage, Wesleyan.