In the most simplified versions of these charts, brown eyes are considered dominant over both blue and green eyes. And green eyes are thought to be dominant over blue eyes. While these concepts generally are true, the genetics of how eye colors are inherited turn out to be far more complicated than once thought.
Well, because all babies are born with blue eyes, right? Feast your baby blues upon this fun fact: Worldwide, more newborns have brown eyes than blue. And there are plenty of infants gazing out at their new surroundings with hazel and brown eyes, too.
Eye color is a polygenic phenotypic character determined by two distinct factors: the pigmentation of the eye 's iris   and the frequency-dependence of the scattering of light by the turbid medium in the stroma of the iris. In humans, the pigmentation of the iris varies from light brown to black, depending on the concentration of melanin in the iris pigment epithelium located on the back of the iristhe melanin content within the iris stroma located at the front of the irisand the cellular density of the stroma. The brightly colored eyes of many bird species result from the presence of other pigments, such as pteridinespurinesand carotenoids.
Traditionally in China, women with lighter skin are said to be more beautiful and precious than the ones with darker skin. In the past, women avoided sunshine because those with darker skin were thought of as field workers. Today, light skin is still associated with class and many beauty products marketed in China lighten the skin tone. The western ideals of beauty are blonde, thin, and blue-eyed just like Scarlet Johansson.
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For people of European descent, lighter skin and eyes do often seem to go hand in hand. But it doesn't have to be this way. For example, many people from Asia have light skin and brown eyes.
When we talk about Asian eyes, we talk about slantedness, roundness, smooth monolids and deep eyelid folds. To talk about Asian eyes is to have a unique lexicon. And these stereotypes persist today.
GeneticsHealth. Most Asian people have dark colored eyes, but occasionally you can see a blue eyed Asian baby. Before wondering if that Asian baby with blue eyes is actually the descendant of Caucasian parents, keep in mind that recessive genes are present in all parts of the globe and yes, Asians can have naturally blue eyes and green, for that matter.