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Short answer Optical filters can optimize color contrast, but never restore color blindness. However, glasses like this can prove helpful for certain sub-populations of people that are partially color blind. Background First, the term color blindness is deceptive. It is better to talk about colour vision deficiency (CVD). This, because many people labeled ...


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My theory and answer is the red receiving cones in your eyes has to be more sensitive because the red light wavelength is longer requiring a more sensitive cone to convert the red photon to an electrical signal. I also theorize that (along with genetics misdiagnosis) boys in traditional working roles are more exposed to out door work (sun burn to the eyes) ...



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