What color is the eyeball? Bad personality.

People in the world have white, black and yellow skin colors, and people's eyeballs also have different colors. The color of eyes is related to race. White people's eyes are mostly blue or gray, black people's eyes are mostly brown and black, and yellow people are in between, mostly brown or black-brown. Of course, this is just the general situation. Even brothers and sisters of the same nation and even the same family have different eye colors. Strangely, a person's eyes have different colors. A white woman named Chanel in South Africa has a blue eye and a brown eye. The color of the eyes is determined by the color of the iris behind the cornea. Iris is composed of muscles, elastic fibers, pigment cells and pigments deposited on iris. If there are many pigment cells and a lot of pigment is deposited on the surface, then the iris is black; On the contrary, the iris is gray or blue. Because the cornea is colorless and transparent, we can see the color of iris, that is, the color of eyes. By the way, does the color of eyes have anything to do with personality? /kloc-in the 0/8th century, a Swiss scholar believed that people with brown or dark green eyes were often grumpy; People with dark gray eyes are more depressed; Quiet people usually have blue eyes. This can only be experience, not a basis. But the color of eyes is related to vision and reaction ability, but there is a certain basis. An American vision research institution reported: "No matter whether the eyes are light gray, light blue or green, the vision is not as good as black eyes." Black eyes are also more discriminating. Some people think that this may be because the iris with black eyes can "emit" more light. Another scientist said that people with black eyes are the most sensitive, followed by those with brown eyes. It is said that China people are smart, which may coincide with this theory!