People who lack color receptors for the wavelengths of red are most likely to experience

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Dichromatic vision refers to having only two types of color receptors (cones) instead of the usual three. People who lack color receptors for the wavelengths of red have a form of dichromatic vision called protanopia or red-green color blindness. They have difficulty distinguishing between red and green hues. Prosopagnosia refers to difficulty recognizing faces, blindsight refers to the ability to respond to visual stimuli despite being consciously unaware of them, and tinnitus refers to a ringing in the ears.

People Who Lack Color Receptors for the Wavelengths of Red