Many parents are surprised to learn that babies can open their eyes before they are born.
During pregnancy, the eyes go through an amazing process of growth and development. While the eyes begin forming very early, the eyelids remain closed for several months before finally opening later in pregnancy.
So when does this happen?
When Do the Eyes Begin Developing?
The baby’s eyes start developing during the first trimester.
Around weeks 4 to 6 of pregnancy, the early structures of the eyes begin to form.
As pregnancy progresses, the retina, lens, optic nerve, and other important parts of the eye continue to develop.
Why Are the Eyelids Closed?
During early fetal development, the upper and lower eyelids fuse together.
This is a completely normal process that helps protect the developing eyes.
The eyelids remain closed while the delicate structures inside the eye continue to mature.
When Do Babies Open Their Eyes?
Most babies begin opening their eyelids around:
👀 26 to 28 weeks of pregnancy
Once the eyelids separate, babies can open and close their eyes while in the womb.
They also begin cycling through periods of sleep and wakefulness.
Can Babies See Inside the Womb?
The womb is a very dark environment, so babies cannot see clearly as they will after birth.
However, during the third trimester, babies may be able to detect bright light that passes through the mother’s abdomen.
Some studies suggest that fetuses can respond to strong light by moving or changing their position.
Can Ultrasound Show a Baby Opening Their Eyes?
Sometimes, yes.
During 3D and 4D ultrasound examinations, parents may occasionally see:
👶 Eyes partially open
👶 Blinking movements
👶 Facial expressions involving the eyes
However, this depends on the baby’s position and activity level at the time of the scan.
Common Misconceptions
Many parents worry when they cannot see their baby’s eyes during an ultrasound.
Remember:
❌ Closed eyes are not a sign of a problem.
❌ Not seeing the eyes during a scan does not mean anything is wrong.
❌ Babies spend much of their time sleeping in the womb.
What is seen during an ultrasound often depends on timing and fetal position.
Fascinating Facts About Fetal Vision
As pregnancy progresses, the visual system continues developing.
The eyes, optic nerves, and brain pathways responsible for vision mature throughout pregnancy and continue developing after birth.
In fact, a newborn’s vision is still developing during the first months of life.
Final Thoughts
A baby’s eyes begin forming early in pregnancy, but most babies do not open their eyes until around 26 to 28 weeks.
Even before birth, babies are preparing for the world around them through remarkable stages of growth and development.
Every week brings new milestones as your baby’s senses continue to mature. 💙👶👀
