Strabismus affects roughly one in 50 children and can appear at any age, though parents most often notice it in the first few years of life. The term describes a condition where the two eyes do not point in the same direction at the same time: one may turn inward (esotropia), outward (exotropia), or drift vertically.
Signs to watch for
- A visible turn in one eye, especially when the child is tired or in bright light
- An unusual head position (tilted to one side or turned) to compensate for the misalignment
- Spontaneously covering one eye, or frequent squinting in sunlight
- Crying or strong resistance when one eye is covered, which may mean the other sees less well
Strabismus does not correct itself with age, and it is not simply a cosmetic concern. A misaligned eye that goes untreated can lead to amblyopia (“lazy eye”), a permanent reduction in vision in the affected eye, even when there is no structural problem with the eye itself.
Why timing matters
The brain goes through a critical period of visual development in the first seven or eight years of life. During this window, the neural connections between the eyes and the brain form and consolidate. The earlier treatment begins, the better the brain can adapt and the greater the chances of full visual recovery.
Treatment is not always surgery
Many parents worry that a strabismus diagnosis means an immediate operation. In most cases, the first step is optical correction (glasses). For some children, glasses alone correct the deviation completely. If amblyopia is also present, patching is added to the plan: the stronger eye is covered for part of the day to stimulate the weaker one. Surgery is reserved for cases where the deviation persists after optical correction or is too large to be influenced by glasses alone.
An early assessment commits you to nothing, but it can make a lasting difference to your child’s vision.