View source for Young-Helmholtz theory

[[Category:Biology]]
== Explanation ==
Young–Helmholtz theory is a [[trichromatic]] theory of color [[vision]] that explains how human [[eye|eyes]] perceive vision by reacting to the [[wavelength]]s of [[light]] falling on the [[retina]]. Eyes have three types of [[cone cell|cone cells]] – short-wavelength preferring, medium-wavelength preferring and long-wavelength preferring. The difference in wavelengths detected by the brain from the retina gives the color perception.