Is it better to have brown eyes or black eyes

We all know that Chinese people are generally of the yellow race, with yellow skin and black eyes, and they look particularly friendly. Especially when you are in a foreign country, it is really a happy thing to meet a fellow countryman. Westerners generally have white skin and blue eyes, and they always seem less friendly than our fellow countrymen. So, are brown eyes better or black eyes?

As we all know, most people in China have black eyes, but there are also some with brown eyes, and some mixed-race people have dark brown eyes. Such eyes are very beautiful, deep and transparent. As we all know, foreigners' eyes are different from ours. Theirs are blue and green. Many people wonder why foreigners' eyes are so beautiful? In fact, our brown eyes are also beautiful because they suit the yellow skin of us Asians. Otherwise, yellow skin and blue eyes would not be beautiful.

Scientists have discovered that the iris of our human eye is made up of five layers of tissue. They are the endothelial cell layer, anterior limiting membrane, stromal layer, posterior limiting membrane, and posterior epithelial layer. Among these five layers of tissue, the matrix layer, anterior limiting membrane and posterior epithelial layer contain many pigment cells. The amount of pigment contained in these cells determines the color of the iris.

The more pigment the pigment cells contain, the darker the color of the iris and the darker the color of the eyeball; the less pigment the less the color of the iris and the lighter the color of the eyeball.

The pigment content in pigment cells is consistent with skin color and is related to racial genetics. Orientals are colored races with more pigment in their irises, so their eyeballs appear black; Westerners are white races with less pigment in their irises and blood vessels distributed in the matrix layer, so their eyeballs appear light blue.