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A color blindness test is a type of perceptual assessment designed to identify color vision deficiencies.

These tests utilize various chart patterns, such as color wheels, color hexagons, or pseudo-isochromatic grids, which help highlight distinct color differences that people with normal color vision can easily distinguish. Still, those who are color blind are unable to perceive.

There are also computerized versions of these tests that can be used to quickly and efficiently evaluate color differentiation ability. While color blindness tests are primarily used for medical purposes, they can also be used in other settings, such as workplaces or schools, where it is essential to ensure color perception accuracy.

Overall, a color blindness test is a valuable tool for assessing the extent of color vision impairment and identifying the appropriate treatment options.