The trichromatic theory provides the best explanation for the most common form of color blindness.

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The trichromatic theory, also known as the Young-Helmholtz theory, states that color vision is based on the response of three types of cones in the eyes. The most common form of color blindness, known as red-green color blindness, occurs when one or more of these cone types are dysfunctional or missing, supporting the trichromatic theory.

The Trichromatic Theory Provides the Best Explanation for the Most