Mathematics of the Eye and Color

Eye and color eyes form an "optical image" in the photoreceptor cells of the retina. It is often compared with the camera in it. However, it seems like a camera with in-focus characteristics, but it differs greatly after the light strikes the retina. The camera simply displays a point-to-point display of the image on the film, but this is more complicated and interesting. Visible light is only a fraction of the electromagnetic spectrum, and the various wavelengths of the visible spectrum represent different colors.

As the color perception process in which the color is recorded in the eye, the input is sorted and passed to the brain. Very simply, the eyes function like a camera. Light enters the human eye through the cornea, the outer layer of the eye covers, and the iris muscles control the amount of light entering the eye through the pupil. After that, the light converges on the back of the eyes, the retina. The retina is composed of rod cells and photoreceptors called pyramidal cells. The rod allows us to see the shape in dim light, but the cone works better under bright light, but with only white and black

The color of the human eye is caused by pigmentation of the structure called the iris. It helps to control the amount of light that can surround the small black hole (pupil) in the center of the eye. The color of the iris is a range of very bright blue to dark brown continuum. In most cases, the eye color is divided into blue, green / light brown or brown. Brown is the most common eye color in the world. Visible colors such as blue and green are almost exclusively in European lineage.

Brown eyes are the most common eye color in the world and over 55% of the world's population has brown eyes. The color of brown eyes is a dominant genetic feature and is produced by the presence of melanin in the eye. More than 50% of the world's population has brown eyes. And almost everyone in Africa and Asia has brown eyes. Brown eyes are usually darker than other eyes, and they even appear black in some individuals. The eyes of hazel are similar to brown eyes, but usually the color is thin and greenish yellow is hanging. In the eyes of hazel, the concentration of melanin (pigment) is high near the edge of the eyes, so the multicolor appearance may change between copper and green depending on the light. Most people estimate that about 5 - 8% of the world 's population is twilighting eyes.