Vision Development (Eye Formation)
Eyes begin forming at week 4, eyelids close at week 12 and reopen at week 28. Baby can detect light through belly in third trimester.
Development Timeline
Weeks 4-40 (continues developing after birth)
Overview
Your baby's eyes begin as small grooves on the sides of the head around week 4, gradually moving forward and developing into complex structures. The lens, retina, and cornea all form during the first trimester, though the eyes remain sealed shut by fused eyelids from week 11 until week 28.
While your baby can't see much in the womb due to darkness, the visual system continues developing throughout pregnancy. The retina - the light-sensitive layer at the back of the eye - doesn't fully develop until after birth. The optic nerve, which transmits visual information to the brain, forms and matures during the second and third trimesters.
Around week 28, when the eyelids reopen, your baby can open and close their eyes and may even blink. If you shine a bright light on your belly in the third trimester, your baby may turn away from it. However, true vision requiring focus, depth perception, and color recognition continues developing after birth.
🗓️ Week-by-Week Milestones
Tap any week to open its full pregnancy guide — baby size, symptoms, and what else is developing that week.
Eye grooves form on sides of head
Eyes move to front of face, lens forming
Retina begins developing, eyes becoming pigmented
Eyelids present but eyes remain closed
Eyelids fused shut to protect developing eyes
Eyebrows and eyelashes growing
Eyes structurally complete but remain closed
Eyelids open, baby can blink
Baby may respond to bright light shone on belly
Pupils can dilate and constrict in response to light
👀 What to Expect
- •You might feel baby move if a bright light is shone on your belly
- •Ultrasounds may show baby opening and closing eyes after 28 weeks
- •Baby may face toward light sources in the womb
- •At birth, baby will briefly open eyes and try to focus
- •Newborns are most interested in faces, especially mom's
- •Baby blinks at bright lights after 28 weeks
💡 Tips for Parents
- ✓Taking DHA omega-3 supplements supports eye development
- ✓Baby can detect light through your belly in third trimester
- ✓Newborns can only see about 8-12 inches - the distance to your face while nursing
- ✓High contrast patterns are easier for newborns to see than subtle colors
- ✓Vision continues developing significantly in first year after birth
- ✓Vitamin A in your diet supports retina development
- ✓Most babies are born with blue-gray eyes that may change color
🛍️ Supplements & Reads for This Development Stage
Comfort and preparation products other expecting parents find helpful at this stage. These are convenience picks, not medical advice — always follow your provider's guidance.
Prenatal Vitamins (with Folate & DHA)
Daily folate, iron and DHA support that doctors recommend before and throughout pregnancy.
Check Price on Amazon →DHA Omega-3 Supplement (Prenatal)
Doctors recommend DHA throughout pregnancy for baby's brain and eye development — especially the third trimester.
Check Price on Amazon →What to Expect When You're Expecting
The classic week-by-week guide trusted by millions of expecting parents.
Check Price on Amazon →Amazon Associates Disclosure: As an Amazon Associate, we earn from qualifying purchases at no extra cost to you. These recommendations are editorially chosen comfort and preparation products and are not medical advice.
✨ Amazing Facts
All babies are born with blue or gray eyes due to lack of pigment
Newborns are extremely nearsighted - they see best at 8-12 inches
Babies can see in the womb, but it's mostly dark
Your baby practices blinking even though eyelids are fused until week 28
The eye color your baby is born with may change in the first year
❓ Frequently Asked Questions
When do a baby's eyes form during pregnancy?
Your baby's eyes begin as small grooves on the sides of the head around week 4. By week 7 they move toward the front of the face and the lens starts forming, and the retina begins developing around week 8. By the end of the first trimester the basic eye structures — lens, retina, and cornea — are all present, though the eyes remain sealed shut.
When do a baby's eyes open in the womb?
Your baby's eyelids fuse shut around week 11 to protect the developing eyes, and they reopen around week 28. After that, your baby can open and close their eyes, blink, and their pupils can constrict and dilate in response to light by about week 32.
Can my baby see in the womb?
There is very little to see in the dark environment of the womb, so true vision develops mostly after birth. However, once the eyelids reopen around week 28, your baby can sense light. If you shine a bright light on your belly in the third trimester, your baby may turn toward or away from it. Focused vision, depth perception, and color recognition continue developing well into the first year of life.
What eye color will my baby be born with?
Most babies are born with blue or blue-gray eyes because the pigment (melanin) in the iris is not yet fully developed at birth. Over the first 6-12 months, melanin production can increase and the eye color may deepen to green, hazel, or brown. The final color is determined by genetics and is usually settled by the first birthday.
How can I support my baby's eye development during pregnancy?
DHA, an omega-3 fatty acid, is a key structural fat in the retina, so a prenatal vitamin with DHA plus fatty fish like salmon (or algae-based DHA if you are vegetarian) supports eye development. Vitamin A — from sources like sweet potatoes, carrots, leafy greens, and dairy — is also essential for retina formation. A varied, nutrient-rich diet alongside your prenatal vitamin covers the most important bases.
How well can a newborn see after birth?
Newborns are very nearsighted and see best at about 8-12 inches — roughly the distance to your face while feeding. They are most drawn to faces and high-contrast patterns rather than subtle colors. Vision sharpens rapidly over the first few months, with color vision, focus, and depth perception maturing throughout the first year.
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👶 Planning Ahead?
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