Dichromasy (Noun)
Meaning
A deficiency of color vision in which the person can match any given hue by mixing only two other wavelengths of light (as opposed to the three wavelengths needed by people with normal color vision).
Classification
Nouns denoting natural processes.
Examples
- Those affected with protanopic dichromasy typically see reduced red light sensitivity and struggle distinguishing between red and green hues.
- Dichromasy often results in inconvenience, as those diagnosed cannot perceive and differentiate between colors as the general population can.
- Although dichromasy usually affects the color vision of the entire visual field, some may observe subtle variations in perception dependent on the location.
- There have only been a small number of reported female cases of dichromasy because the related genetic condition primarily affects the X chromosome.
- Research has found that around 8-10% of all males are estimated to have some variation of dichromasy, thus making it relatively common.