Public

Baby's eye color

Baby's eye color


We are searching data for your request:

Forums and discussions:
Manuals and reference books:
Data from registers:
Wait the end of the search in all databases.
Upon completion, a link will appear to access the found materials.

Baby's eye color It depends on the genetic information transmitted by chromosomes 15 and 19. The genetic inheritance that collects the baby's eye color is transmitted not only from parents to children, but also takes into account the eye color of the grandparents. Generally speaking, eye color is inherited in a similar way to hair color: genes for darker colors are dominant.

Depending on the combination that occurs between these chromosomes, the child's eyes will be one color or another, so to have them green, parents have to have genetic information of the green color on one of their chromosomes to transmit it to their child.

Eye color depends on the structure of the iris, that is, on the amount of pigment it contains. This pigment forms during the first months of the baby's life and, for this reason, many newborns tend to have an undefined color that looks like a gray-blue color, but this color is not usually definitive.

At birth, the baby has little coloring matter, not only on his skin, but also in his eyes. Many newborns have light eyes (blue or green) because the melanin has not fully deposited in the iris or has not darkened from exposure to sunlight. Progressively, as pigmentation increases due to the growth and development of the baby, the eye color tends to define itself, going from gray to brown, and varying less from gray to blue or green in babies with light eyes.

For the baby to have pure eye color, all genes have to be the same. In the case of different genes, a mixed eye color will appear. In addition, it must be borne in mind that brown is dominant over green or blue.

Change in eye color in babies is very common. Between brown and gray, there are many possible shades, depending on the melanin deposited in the iris and the structure of the eye itself. In gray, blue, green or brown eyes there are innumerable shades of color that have given rise to other colors such as hazelnut, dark brown, aquamarine and even violet. all these shades, all of them unique and unrepeatable. However, certain rarities are also observed such as heterochromia (one eye of each color) or black eyes (not dark brown) due to an abnormality called aniridia (a disease that causes the total absence of iris).

The final color can be clearly determined from the year of age, although around six months we can already get an idea of ​​our baby's eye color. If the baby has dark eyes from the first months, this color will be its final color, but in children with light eyes, the color with which they were born may persist or changes in tonality may occur, since up to three years of age age, the eyes produce or store melanin enough to modify the initial color.

Eye color is due to genetic factors. The most normal thing is that if mom or dad have the same eye color, your child also has that color. The most common eye color is brown and the least common is green.

Marisol New. Editor of our site

You can read more articles similar to Baby's eye color, in the category of Newborn on site.


Video: Gender Selection Of Babies Is A Growing Trend (May 2022).