Cat's eye color

Cat's eye refers to a cat's eyes. Cat's eye is similar to human eye, and it is also composed of cornea, iris, lens, retina and other structures. Cats are binocular vision animals, with a single cat's eye vision of 100 degrees and a wide-angle vision of 200 degrees. Cats' eyesight is six times that of humans. They not only have good eyesight during the day, but also are extremely keen at night. They can clearly distinguish things even when the light is bad at night.

Cat's eyes are blue, green, yellow, brown and other colors. There is no clear boundary between these colors, and these colors are mainly determined by the iris. Iris is a colored part around the pupil, mainly composed of sphincter, which controls the light throughput like the aperture of a camera. People's iris will not change obviously with the light, while cats' iris can be reduced to only a thin seam.