Pediatric ophthalmology and strabismus
A child's vision finishes developing in the first years of life. A problem missed during that window can leave a permanent limitation, even if the cause is corrected later. That is why in pediatric ophthalmology the timing of the diagnosis matters as much as the treatment.
Lazy eye (amblyopia)
Amblyopia happens when one eye does not receive an adequate visual stimulus while vision is developing, because of an uncorrected refractive error, a squint or a congenital cataract. The brain favors the good eye and stops processing information from the other.
The child does not complain, because they see well with one eye and have nothing to compare it against. Treatment, with optical correction and patching of the dominant eye, is far more effective the earlier it starts.
Strabismus (squint)
This is a misalignment of one of the eyes. It can be constant or intermittent, and present from birth or appear later. It is not a cosmetic issue: it compromises binocular vision and often comes with amblyopia.
Management depends on the type and the cause. It can involve optical correction, treatment of the amblyopia and eye muscle surgery to realign the visual axes.
A squint does not fix itself
Past three or four months of age, a turning eye should always be assessed. The idea that the child will grow out of it costs years that cannot be recovered for visual development.
When to bring your child in
- If one eye turns, even occasionally.
- If they tilt or turn their head to look at things.
- If they sit very close to the television, the page or the phone.
- If they squint, blink a lot or rub their eyes frequently.
- If their eyes water or burn while reading.
- If the pupil looks white in flash photographs. This needs prompt assessment.
- If school performance drops with no clear reason.
- If there is a family history of squint, high myopia or inherited eye disease.
Even with no signs at all, an assessment before starting school is recommended.
What a children's visit is like
The exam is adapted to the child's age: with the youngest we use pictures, lights and fixation tests, not letter charts. Cycloplegic dilation is almost always needed, because a child's eye accommodates strongly and without dilation the prescription comes out wrong. That means your child will have blurred near vision and light sensitivity for several hours.
Frequently asked questions
How young can a child be examined?
Any age, including newborns. The child does not need to be able to read or to answer questions.
Does patching actually work?
Yes, it is the best-evidenced treatment for amblyopia, and how well it works depends on doing it daily and on the age at which it starts. The earlier, the better the result.
Does squint surgery improve vision?
Surgery aligns the eyes. The vision of each eye is treated separately, with optical correction and amblyopia management. Both are often needed.
My child sees well but is struggling at school. Could it be their eyes?
It could. An uncorrected refractive error or a binocular vision problem causes fatigue and loss of concentration when reading, without the child reporting blurred vision. It is worth ruling out.
This information is educational
What is described here is the usual approach and does not replace a medical assessment. The diagnosis and treatment for your case are decided by your treating specialist.
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