Usually, this color-changing process takes around six months. However, sometimes eye color continues to change until the age of three. Eye color is determined by melanocytes, which are cells that secrete the protein melanin. Melanin is what influences skin, hair, and eye color. The iris contains melanocytes, and these cells respond to light by increasing melanin production, usually over the first year of life. Depending on how much melanin is secreted, your baby's eye color may slowly begin to change after birth.
If your baby has blue eyes, their melanocytes are secreting only a little melanin. If they secrete just a little bit more, your baby's eyes will look green or hazel.
If your baby has brown eyes, the melanocytes are secreting a lot of melanin. These genes control for brown or blue and green or hazel. For years, brown eye color was considered the "dominant" trait, and blue eye color was considered the "recessive" trait. But today, we know that determining eye color is not that simple because eye color is not influenced by just one or two genes.
Ultimately, your baby's exact eye color will depend on the combination of these 16 genes that they inherit from both of their parents. This is why, though rare, two parents with brown eyes can have a baby with blue eyes. Sometimes children are born with irises that do not match in color. This condition, known as heterochromia, is typically present at birth where it is called congenital heterochromia.
But heterochromia can also result from a health condition or trauma. For example, Horner's syndrome, which is a disruption of the nerve pathway from the brain to one side of the face and eye, can cause unexpected changes in eye color.
Waardenburg syndrome is a group of genetic conditions that can also cause changes in eye coloring. Children with this condition often have very pale blue eyes, have one blue eye and one brown eye, or have one eye that segments into two different colors.
If you notice any unusual appearance in your baby's eye color, contact your pediatrician. They may refer you to an ophthalmologist. Because there is still a lot that is not understood about the interplay among genes and their role in determining eye color, it is hard to make predictions about what shade your baby's eyes will end up being.
But there are some probabilities that are worth noting:. Generally, changes in eye color go from light to dark. So if your child initially has blue eyes, their color may turn green, hazel, or brown. But if your baby is born with brown eyes, it is unlikely that they are going to become blue. It is impossible to predict a baby's eye color just by looking at the parents' eyes. The process is much more complicated than that.
People with blue, grey, or green eyes tend to be more light-sensitive than people with brown or black eyes. In fact, people with lighter eyes often experience photophobia, or light sensitivity, causing them to squint in sunlight or feel fatigued after sitting under fluorescent lights for a while.
This sensitivity is due to the fact that people with light eyes have less pigmentation in multiple layers of their eyes. As a result, they are unable to block out the effects of bright lights or sunlight. With this in mind, parents should keep an eye on their kids when they are outside and look for signs that their child may need a break from the sunlight. Sometimes the color change can continue for several years before the eye color becomes permanent.
Eye color is determined by genetics. One specific chromosome is largely responsible for determining eye color. It carries two genes, one that determines the amount of melanin in the iris, and the other that controls the activity of the melanocytes. These genes act together in determining eye color. Some other genes play smaller roles. If you and your partner both have blue eyes, your baby is highly likely to have blue eyes. If you and your partner both have brown eyes, your baby is highly likely to have brown eyes.
This is just one more of her many physical and personality traits that will start to unfold before your eyes in the months and years to come. That said, if your baby was born with brown eyes, it means they already have the amount of melanin assigned by their genetic code, so their eye color won't change.
Also, not every baby with light-colored eyes experiences a darkening in color; sometimes the blue, green, gray, or hazel is here to stay! Typically, you'll see the biggest eye color change in the first 6 to 9 months of life, Dr. Moorjani says. Over several weeks or months, you may notice your baby's eyes getting darker. The change is so gradual that you may not notice until, one day, they wake up and surprise you with a different eye color!
By 12 months , most babies will have their permanent eye color, although Dr. Fredrick says that some children's eye color may still change up until age 6 but this occurrence is rare and the change won't happen overnight. Generally, your baby's eye color will change without affecting their vision or causing any problems. But if only one eye changes color which is very rare or if you notice cloudiness in your baby's eye, contact the pediatrician or pediatric ophthalmologist.
Why do I keep reading this? I was born with dark brown eyes and so was my mother and by age 1 we both have very vivid GREEN eyes. My husband and I also both have green eyes, and our mothers both have green and our fathers both have blue!
My dad's are blue-green and his dad's are light blue. My sister has blue. My son was born with dark brown. There is no genetic chance of his eyes staying brown. By Tamekia Reece Updated May 07,
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