Why do babies darken the eyes: Explanations of scientists

Babies’ eye color changes not only through genetics

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The eyes of some babies can change their color and over time become darker. And babies born blue -eyed during the first year of life can become karaoke.

This is due to biological processes, the effects of the sun and genetics, She told Doctor Rebecca with Cleveland Clinic.

« The eyes of not all babies change their color. But if children are born with light eyes, sometimes they gradually darken during the first year of life »– the scientist explained.

How does the color of babies change?

Melanocytes – specialized cells that produce melanin protein – are responsible for the color of the eyes in the human body. This compound makes the skin darker as well as the colored part of the eye.

Scientists have found that a large amount of melanin in the front of the iris changes the color of the eyes on darker. So people with brown eyes, who consider the most common shade in the world, have more of this protein than the owners of light eyes.

People with blue eyes do not have melanin at all in the front of the iris, They say at the American Academy of Ophthalmology. Instead, people with green eyes have this light brown pigment.

According to Rebecca, Tarnovitz, melanocytes become more active and produce melanin as soon as babies find themselves in the sun. In order for the color of the toddler’s eyes to change, there are enough regular walks on the street or enough scattered sunlight at home.

How much melanin the iris will produce depends on heredity. However, the color of the eyes determines not one gene, but a few genetic markers, so the color of the baby’s eyes is not always easy to predict.

If both parents have brown eyes, it does not mean that their children will not have blue.

« Two people with light eyes are more likely to have a baby with the same eye color.

In this case, pairs with dark eyes have a probability of having a baby with dark eyes. But if the grandparents (babies) are light eyes, they can be transmitted « – explained the Tarnovitz.

The scientist noted that parents with light eyes have a little chance of having a baby.

If the color of the baby’s eyes changes, then parents notice it during the first six months of her life. The possibility of such a transition from light to dark can be indicated by the turbidity of the color of the eyes.

There are times when parents should pay attention to the eyes of their babies. In some cases, a special color may indicate the disease. For example, people with Vaardenburg genetic syndrome sometimes have one blue eye and the other darker.

Earlier we toldWhat the color of the eyes depends, whether it is possible to predict it in the baby and why some people have different colors.