When Should My Baby Have Their Vision Screened?
The short answer
Vision screening starts at birth with the red reflex test and continues at every well-child visit. The AAP recommends formal instrument-based vision screening (photoscreening) starting at age 1-3 years and traditional visual acuity screening by age 4-5. Early detection of vision problems is critical because many conditions are most treatable when caught in infancy and early childhood.
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By Age
What to expect by age
Your pediatrician checks the red reflex at birth and at early well visits. The red reflex test shines a light into each eye looking for the normal reddish glow from the retina. An abnormal red reflex may indicate cataracts, retinoblastoma, or other conditions. Your pediatrician also checks for structural eye abnormalities and observes eye alignment.
By 3-4 months, your baby should be able to follow moving objects and make eye contact. Your pediatrician assesses eye alignment and movement at well visits. Occasional eye crossing before 4 months can be normal, but constant or persistent crossing needs evaluation. By 6 months, eyes should be well-aligned.
Your pediatrician continues to check eye health at well visits. If there is any concern about eye alignment (strabismus), lazy eye (amblyopia), or other issues, a referral to a pediatric ophthalmologist is made. Treatment for these conditions is most effective when started early.
Instrument-based screening (photoscreening) can be performed starting at age 1 and is recommended by the AAP between ages 1-3. This involves taking a quick photo of your child's eyes that can detect focusing problems, strabismus, and other abnormalities. The test is painless and takes seconds.
Photoscreening should be performed if not already done. By age 3, some children can participate in visual acuity testing using pictures or shapes. The US Preventive Services Task Force recommends vision screening at least once between ages 3-5. If your child has risk factors (family history, prematurity, developmental delays), earlier or more frequent screening is recommended.
What Should You Do?
When to take action
- Your baby has a normal red reflex at birth and subsequent visits
- Your baby follows faces and objects with their eyes by 3-4 months
- Both eyes move together and are aligned by 6 months of age
- Your baby passes photoscreening or other vision tests at recommended ages
- Your baby does not seem to follow objects or make eye contact by 3 months
- You notice one eye turning in or out, even occasionally, after 4 months of age
- You notice your baby consistently tilting their head to one side when looking at things
- You notice a white or abnormal pupil reflex in your baby's eye, especially in photos (could indicate retinoblastoma or cataract)
- Your baby's eye is suddenly misaligned, bulging, or you notice sudden vision loss or behavior suggesting your baby cannot see
Sources
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Trust your instincts. If something feels wrong, reach out to your pediatrician.
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Related Medical Concerns
My Baby Needs Glasses - What Should I Know?
Babies can be prescribed glasses as young as a few months old for conditions like significant farsightedness, nearsightedness, astigmatism, or to help correct eye alignment issues. Infant glasses have flexible frames, adjustable straps, and polycarbonate lenses for safety. While it may seem early, correcting vision problems in infancy is crucial for normal brain visual development and can prevent lazy eye (amblyopia).
My Baby Needs Eye Patching for Lazy Eye
Eye patching (occlusion therapy) is a standard treatment for amblyopia (lazy eye). By covering the stronger eye, the brain is forced to use the weaker eye, strengthening its visual pathway. Treatment is most effective when started early, ideally before age 3-4. Your ophthalmologist will prescribe the number of hours per day based on severity. Consistency is more important than perfection - any patching helps.
Eye Alignment Issues in Infants
Eye alignment issues (strabismus) in infants can involve one eye turning inward (esotropia), outward (exotropia), upward (hypertropia), or downward (hypotropia). Intermittent misalignment in newborns under 3-4 months is very common and usually resolves as eye muscles strengthen. Constant misalignment at any age, or any misalignment persisting after 4 months, should be evaluated by a pediatric ophthalmologist. Many parents also mistake pseudostrabismus (the appearance of crossed eyes caused by a wide nasal bridge) for true misalignment.
When Should My Baby See a Pediatric Ophthalmologist?
A pediatric ophthalmologist is a medical doctor specializing in eye conditions in children. Referral is appropriate for eye misalignment (strabismus), suspected lazy eye (amblyopia), abnormal red reflex, cataracts, excessive tearing from blocked tear ducts that have not resolved, eye injuries, and failed vision screening. These specialists can examine babies of any age and determine if glasses, patching, surgery, or other treatment is needed.
My Baby's Head Shape Looks Abnormal
Many babies develop temporary head shape irregularities that are completely normal. A cone-shaped head from vaginal delivery reshapes within days. Mild positional flattening (plagiocephaly) from sleeping on the back is very common and usually improves with repositioning and tummy time. However, head shape changes involving ridges, a persistently bulging fontanelle, or rapid head growth changes should be evaluated to rule out craniosynostosis.
Achondroplasia (Dwarfism) in Babies
Achondroplasia is the most common form of short-limbed dwarfism, affecting about 1 in 15,000 to 40,000 births. It is caused by a mutation in the FGFR3 gene and is usually apparent at birth with characteristic features including short limbs, a larger head, and a prominent forehead. Intelligence is normal. With monitoring for specific complications and supportive care, children with achondroplasia lead full, active, and independent lives.