Where do the green pupils come from?

Not all people in China have black eyes. Although there are no detailed statistics, you can take a closer look at the eyes of people you know. In fact, many people are brown. Therefore, China people and other Asians are generally brown or black. In western countries, immigrant countries and non-immigrant countries are different. The United States, Canada, Australia and other immigrant countries have different races, so there is no uniform standard. Non-immigrant countries in Europe, basically northern Europe and western Europe have more blue-green eyes, some brown eyes and a few gray eyes. About half of the eyes in eastern Europe are blue or green, and half are brown. Spain, Portugal and Italy in southern Europe are mainly brown-eyed. South America is basically brown-eyed, and Latin Americans (Hispanics or people mixed with South America) are basically brown-eyed. Black people are similar to Asians, with black and brown eyes.