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LivingWhy are some babies born with blue eyes?
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Why are some babies born with blue eyes?

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One of the first things that draws attention to the appearance of the baby when it arrives in the world is that when we open our eyes we can notice that the newborn has light eyes , a grayish-blue tone, regardless of the color of the child’s eyes. His parents.

This may make us think that our baby will have blue eyes , but it is still too early to tell, since that is not his definitive color . The baby’s eye color will be defined in the following months.

It is not seen in all babies, as some are born with a deep brown or black color that will remain the final color.

Why are babies born with light eyes?

It is because the cells that produce melanin , the substance responsible for coloring skin, hair, and the iris (the colored part of the eye), are still immature and make little pigment.

Progressively, these cells will give color to the eyes, as the baby grows and the cells mature. For this reason, in a newborn the eyes can be blue but at six months they can be black.

Throughout the first six months, they will define the color they will have according to genetics. Even in some cases, during the first year or more, the pigmentation of the iris can continue to increase.

Around two years they will already have their final color. However, although the base color will not change, they can continue to change slightly in intensity and shades.

What eye color will it have?

Eye color is defined by genetic inheritance, and of course this is very capricious , since not only the genes of both parents influence but also the genes of the grandparents (and it is believed that also of other ancestors) through the chromosomes 15 and 19.

It should also be taken into account that dark colors are the dominant genes and light colors are recessive genes. But as we say, genetic rules can surprise us and it is possible, for example, that a couple with brown eyes have a child with blue eyes.

Here are some examples of the possibilities of eye color that a baby can inherit according to the eye color of the parents.

 

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