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Strabismus in Children: When One Eye Does Not Track With the Other

Dr. Anna Saylor smiling beside a young patient in one of our treatment rooms

Somewhere between two and four percent of young children have strabismus, a condition where the eyes do not line up and point at the same object together. One eye may drift in, out, up, or down while the other stays steady, pointed straight ahead, sometimes all the time and sometimes only when your child is tired or focused closely on something. Left unaddressed, it can affect depth perception and lead to a weaker eye that the brain starts to ignore, called amblyopia.

Most conversations about strabismus stay focused on the eye itself, glasses, patching, or surgery. Those are genuinely important tools, and your child's eye doctor plays an essential role in managing them. There is also a nervous system piece to this picture that deserves more attention than it usually gets.

What Strabismus Looks Like

Strabismus can be constant or it can come and go, showing up more when a child is tired, sick, or concentrating on something up close. The eye involved can switch sides too, sometimes the right eye drifts, other times the left. When both eyes are properly aligned, the brain merges two slightly different images into one three dimensional picture, which is how we judge depth and distance. If one eye points a different direction than the other, the brain has to sort out two mismatched pictures at once, and at a young age it often copes by tuning out the weaker signal entirely, which is how amblyopia develops over time. Catching and addressing strabismus early gives your child's visual pathways the best chance to develop normally.

The Different Types

Not all strabismus looks the same, and understanding the type can help you talk with your child's eye doctor.

  • Exotropia, where an eye drifts outward, often intermittent at first and more noticeable when a child is tired or daydreaming
  • Esotropia, the most common type in young kids, where one or both eyes turn inward. It can appear in the first months of life or show up later, often linked to farsightedness that makes the eyes work extra hard to focus
  • Hypertropia and hypotropia, less common vertical misalignments where one eye sits higher or lower than the other

What Causes Strabismus

Most sources stop at listing risk factors without going much deeper. Here is the part worth understanding. Six muscles control each eye's movement, and those muscles take their orders from three specific nerves that all begin in the brainstem. Getting your child's eyes to move together and stay lined up depends on those nerves sending clear, coordinated signals. When that communication between the brainstem and the eye muscles is not efficient, misalignment can result. In other words, strabismus is often as much a coordination issue as it is a purely mechanical eye problem.

Known risk factors include farsightedness, a family history of strabismus, prematurity and low birth weight, certain neurological conditions, and birth related stress including cesarean delivery or a NICU stay. What jumps out here is that so many of these risk factors trace back to the nervous system rather than to the eye itself.

Watching for the Signs

  • Eyes that visibly do not line up with each other
  • Tilting or turning the head to compensate
  • Squinting, or closing one eye in bright sunlight
  • Older kids mentioning double vision, headaches, or trouble reading

Some babies appear to have crossed eyes simply because of a wide nasal bridge, which is not true strabismus and typically resolves on its own. If your baby's eyes still seem to cross or wander after four to six months of age, or you notice these signs at any point, a comprehensive exam with a pediatric eye doctor is the right next step.

The Brainstem Connection

The three nerves that control eye movement all originate in the brainstem, the same region that coordinates breathing, heart rate, digestion, and sleep. When there is tension or stress in the upper neck and brainstem area, whether from birth stress, prenatal stress, or other early challenges, the downstream effects can show up far from where the original tension started. Eye coordination trouble can be one expression of a broader pattern of nervous system stress.

The vagus nerve, which also travels through this same brainstem region, plays a central role in regulating the body's rest and digest functions. When there is dysfunction here, it rarely stays contained to just one system. That is part of why many kids with strabismus also show other signs of nervous system stress, like motor delays, sensory sensitivities, or digestive troubles, that seem unrelated on the surface but often are not.

How Early Stress Can Contribute

A few overlapping patterns tend to show up in kids with more complex strabismus presentations. Significant maternal stress during pregnancy can affect a developing baby's brainstem and cranial nerve structures through elevated stress hormones. Birth interventions like a C-section, vacuum extraction, or forceps assistance can create physical tension in the delicate upper neck, right where the nerves controlling eye movement begin. Research has connected cesarean delivery and NICU stays with higher rates of strabismus, and being born at a low birth weight, frequently a sign of a more difficult pregnancy or delivery, shows up as its own separate risk factor too.

How We Support Nervous System Function

Our doctors use INSiGHT scanning, heart rate variability, sEMG, and thermal scanning, to get an objective look at how well your child's nervous system is regulating. This technology is not an eye exam or a diagnostic test. It helps identify patterns of tension, particularly in the upper cervical and brainstem region, that may be contributing to broader nervous system stress alongside your child's eye coordination challenges.

Using Koren Specific Technique and Talsky Tonal Chiropractic, our doctors work with light, nervous system focused contacts to ease tension in this area and support clearer communication between the brainstem and the rest of the body. Many parents notice changes across several areas at once, not just eye coordination, since the nervous system controls and coordinates all of it together.

Working Alongside Your Child's Eye Care Team

Your child's pediatric ophthalmologist plays the central role in monitoring alignment, prescribing glasses, managing amblyopia, and deciding whether surgery is appropriate. Nervous system focused care works alongside that relationship. If you notice sudden eye misalignment, especially past age six, or misalignment accompanied by headache, vomiting, or changes in alertness, seek an eye exam right away, since that combination can signal something that needs prompt attention.

Where to Go From Here

If your child's eyes do not seem to track together, or you are noticing other signs of nervous system stress alongside it, our doctors in Royal Oak would love to take a look. Learn more about our approach to strabismus and eye coordination in children. You can book online, or call us at (248) 616-0900.