Motherhood

When do Babies Eyes Change? We Asked the Expert!

Guest Post: Jenny Altman5 months ago6 min read

One of the first questions new parents ask their doctor is “when do babies eyes change color”? If you’re anything like us, you probably needed to know the sex of the baby during pregnancy (how else would we decorate the nursery?), but babies’ coloring is a little bit of a mystery. They may take on mom or dad’s hair and eye color, or they may not at all. BB may get grandma’s red hair and auntie’s green eyes— this is something we have to wait to find out. It’s such fun to see how bb will look, not just at birth, but during the first year when so many things are changing.

When do Babies Eyes Change

In this article: 📝

  • Do all babies have blue eyes?
  • When do babies’ eyes change?
  • When do babies get their eye color?
  • When will my baby’s eyes change?
  • If babies are born with blue eyes, when do babies’ eyes change from blue?
  • How long until babies’ eyes change color?
  • When do newborn eyes change color?
  • When can you tell what color a baby’s eyes will be definitively?
  • How can you tell if your baby’s eyes will stay blue?
  • What color will GRAY babies’ eyes turn?
  • Can a baby have two different colored eyes?
  • Can we do anything as parents to alter a baby’s eye color?
  • Fun fact:
  • What are the odds of having a blue eyed baby?
  • What are the odds of having a baby with brown eyes?
  • Eye Color Calculator:

We spoke to Ophthalmologist and mom, Debra Guthrie MD from GC Optics, to get the real facts on when do babies get their eye color.

Do all babies have blue eyes?

The real answer is that it’s complicated. Light skinned (Causasian) parents generally have children who are blue eyed at birth, but the color may change during the first year of life. Children of dark skinned parents may have brown eyed children at birth and that won’t change much over time.

Let’s give a little background information first. There’s a pigment called melanin that’s in our hair, skin and iris in varying amounts. The iris is the colored part of our eyes. So, in a sense, the melanin concentration ultimately dictates eye color. Genes are very important, too.

If you want to learn more, read our detailed article about this subject.

When do babies’ eyes change?

Well, if your baby is born with brown eyes, the color doesn’t change much over time. If your child is born with blue or gray eyes- the melanocytes, those little melanin producing machines in the iris, are stimulated to produce pigment in daylight. Generally eye color is known by six months, but the color may continue to change up to one year. In some children color changes until age 2. It’s lots of fun guessing!

When do babies get their eye color?

Well, some babies are born with brown eyes so it’s known at birth. Done deal. For the blue eyed babies eye color will change for up to a year and sometimes into the second year of life.

When will my baby’s eyes change?

If your baby is born with brown eyes the color doesn’t change all that much. If your baby has blue or gray eyes the color will change until 6-9 months. There may be a further deepening of the color after that time.

If babies are born with blue eyes, when do babies’ eyes change from blue?

Eye color changes in the first 6-9 months. If both parents are blue eyed there’s a good chance your child will remain with blue eyes. It’s one of the fun things about being a new parent– watching your child’s eyes change.

How long until babies’ eyes change color?

The baby’s eyes will change color for up to one year. They may deepen in color for a little longer. For the brown eyed bunch, there’s not going to be a change. Enjoy those gorgeous brown eyes smiling at you.

When do newborn eyes change color?

Babies’ eyes start changing at birth. The melanocytes in the iris start producing the pigment, melanin, in response to light. Increase in pigment can continue for 12 months or more.

When can you tell what color a baby’s eyes will be definitively?

For the majority of babies by 12 months of age the guessing game is over and you’ll know your child’s eye color. For a few children the color may continue to change up until age 2. If anything, the color will deepen, not lighten.

How can you tell if your baby’s eyes will stay blue?

Well, there is no foolproof method. Having said that it’s a good bet if both parents have blue eyes your child will have blue eyes. This means less melanocytes making the pigment, melanin.

What color will GRAY babies’ eyes turn?

If your child is born with gray eyes they may stay light or actually turn hazel or brown during the course of your child’s first year of life. It’s part of what makes being a parent so much fun.

Can a baby have two different colored eyes?

Yes, it’s called Heterochromia. If your child is born with two different colored eyes (one brown, one blue) or in the first six months the eyes become two different colors, it’s a good idea to get it checked out. In many people, this is normal, but there are some medical conditions that may cause two different colored irides. Better to have your pediatrician decide if a visit to the eye specialist is warranted.

Can we do anything as parents to alter a baby’s eye color?

No, we can’t. And whether you breastfeed or use formula, it won’t make a difference. Destiny is destiny.

Fun fact:

A newborn cannot produce tears. The lacrimal gland which produces tears is not fully developed. Starting at one month a baby will produce tears….the rest is history.

What are the odds of having a blue eyed baby?

If one parent is brown eyed and the other is blue, the chances are 50/50, leaning more towards brown. Only 8-10% of people worldwide have blue eyes. If both parents have blue eyes, the chances of a blue eyed baby is closer to 99%.

What are the odds of having a baby with brown eyes?

Almost 75% of people worldwide have brown eyes, so it’s pretty likely. Especially if both parents have brown eyes. Unless one or both parents carry the blue-eye gene, it’s almost certain bb will have brown or hazel eyes.

Eye Color Calculator:

If you want a head start on figuring out your baby’s eye color, you can try an eye color calculator. This allows you to enter the eye color of each parent. It then gives you a breakdown as to what percentage chance you have for each eye color. We tested it out with 10 toddlers/children and it was about 80% accurate. It’s super interesting to see your chances, and even more fun to know if it’s right when you finally see bb’s eyes develop for yourself.

👶 More baby milestones:
When Do Babies See Color?
When Do Babies Start Talking?
When Do Babies Roll Over?
When Do Babies Crawl?
When Do Babies Walk?
When Do Babies Sit Up?
When Do Babies Start Teething?
When Do Babies Start Smiling?
When Do Babies Stop Spitting Up?
When Do Babies Start Cooing?