When light enters the eye, it passes through the cornea, which is the clear, outermost layer of the eye, and then through the pupil, which is the black circular opening in the centre of the iris. The iris is the colored part of the eye, and its main function is to control the amount of light that enters the eye by adjusting the size of the pupil. The light that enters the eye is then focused by the lens, which is located behind the iris. The lens is responsible for adjusting the focus of the incoming light, allowing the eye to see objects at different distances. As the light reaches the back of the eye, it is absorbed by the photoreceptor cells in the retina. The cones in the retina are responsible for detecting the different wavelengths of light that correspond to different colors. When a cone is stimulated by a particular wavelength of light, it sends an electrical signal to the brain, which is then interpreted as a specific color. The brain receives signals from all the cones in the retina, which allows it to perceive the various colors that make up the objects we see. The brain then combines this information with other sensory input, such as depth and movement, to create a complete picture of our surroundings. Color perception in the eyes is a complex process that involves different components of the eye working together to interpret the different wavelengths of light that make up the colors we see. The three types of cones in the retina are responsible for detecting the primary colors of light, which the brain then combines to create the full range of colors that we perceive in the world around us.