Signs Your Child Needs an Eye Test: A Parent’s Symptom-Spotting Guide

Reviewed by Rupal Shah, Optometrist and Director at Perspective Optometrists, Belsize Park

Children rarely tell you their eyesight is blurry. Most have never known anything different, so they assume that what they see is exactly what everyone else sees. Rather than complaining, they simply adapt, and the clues tend to show up in how they behave instead of in what they say.

The reassuring news is that most children have healthy sight and will never need glasses. When something is not quite right, though, spotting it early gives your child the best possible start.

This guide covers the signs worth watching for, what each one might mean, and when to act. If anything here feels familiar, an unhurried children’s eye examination is the simplest way to put your mind at rest.

The signs at a glance

Here is a quick summary you can scan in a moment. Each sign is explained in more detail below.

They sit close to the screen or hold things up to their face

If your child edges closer to the television, holds a tablet almost against their nose, or brings books right up to their face, it may be the only way things look clear to them. It is one of the most common early signs of short-sightedness, known as myopia. The odd close-up moment is fine, but a steady habit is worth a check.

They squint or tilt their head to focus

Screwing up the eyes briefly sharpens a blurred image, and tilting or turning the head can help line the eyes up. Done often, either can point to a refractive error such as short-sightedness, long-sightedness or astigmatism, or to an eye-alignment issue worth looking into.

They rub their eyes or blink a lot

Frequent rubbing and heavy blinking can mean the eyes are tired, dry or straining to focus. A tired child rubbing their eyes at bedtime is perfectly normal. The pattern to watch for is rubbing or blinking during reading or screen time, when your child is otherwise wide awake.

They get headaches or tired eyes after school

When the eyes strain to focus all day, the result is often a headache or sore, tired eyes by home time. Some children simply say their eyes hurt after reading or close work. Regular after-school headaches are always worth investigating.

They lose their place when reading or avoid close-up work

Watch for a child who tracks with a finger, skips or re-reads lines, or quietly avoids reading, drawing and puzzles. Younger children often cannot put into words that the page is hard to see, so they steer clear of the activity instead.

They struggle or lose focus at school

So much of the school day is visual, from the board at the front to the book on the desk. A child who cannot see clearly may find it harder to concentrate or keep up, which is easily mistaken for inattention. Vision problems and learning difficulties are not the same thing, and one does not cause the other, but a sight test is a simple way to rule vision in or out.

One eye turns or drifts

If one eye turns in, out, up or down, whether constantly or now and then, have it checked without much delay. A turning eye, known as a squint, along with a lazy eye, is most treatable when it is picked up early.

Two more to keep in mind: unusual sensitivity to bright light, and clumsiness or poor coordination that seems out of step with your child’s age. Both can have an eye-related cause and are worth mentioning at a test.

Why spotting it early matters

Children’s eyes are still developing, and the window for treating some conditions is wider when they are young. A lazy eye, for example, responds best to treatment before around the age of seven, and short-sightedness commonly begins between the ages of six and thirteen, just when many children are concentrating hard at school. Catching a problem early usually means simpler treatment and a better long-term result.

What if my child shows no signs at all?

This is the part that surprises many parents. A child can have a vision problem and show no obvious signs, simply because they have nothing to compare their sight to. No symptoms is not the same as no problem.

It is also worth booking if eye problems run in the family. Short-sightedness, squints and lazy eye can all be inherited, so if you or close relatives needed strong glasses from a young age, keep a closer eye and test regularly.

For that reason, the College of Optometrists recommends regular eye tests from around the age of three to four, usually every one to two years unless your optometrist advises otherwise. School screening helps, but it is a quick check rather than a full examination and does not catch everything. Our broader guide to children’s eye health covers how to support healthy vision at home.

What happens if you book a test

If anything here rings true, a children’s eye examination is the simple next step. We keep it relaxed and unhurried, and for little ones who are not yet reading, we use pictures and matching games rather than letters, so nobody feels put on the spot.

If your child does need a little help, we will talk you through the options, from durable, fun children’s frames to myopia management that can slow short-sightedness down. You can read more about all of that, and exactly what the examination involves, in our children’s eye health guide.

Frequently asked questions

My child passed the school vision screening. Do they still need an eye test?

Quite possibly. School screening is a brief check that looks mainly at distance vision and can miss things a full examination would pick up, such as focusing difficulties or long-sightedness. If you have noticed any of the signs above, it is worth booking a proper test even when the screening was fine.

Do these signs mean my child definitely needs glasses?

Not necessarily. Some signs do point to a need for glasses, but others can suggest a squint, a lazy eye or simple eye strain, which are managed in different ways. The only way to know is a test, which is exactly what it is for. Glasses are one possible outcome, not a foregone conclusion.

My child only shows a sign now and then. Is it still worth checking?

Yes. Intermittent signs, especially an eye that occasionally drifts or squinting that comes and goes, are still worth a look. It is far easier to reassure you after a quick examination than to leave you wondering.

Could these signs be something other than their eyes?

Sometimes. Eye rubbing can be due to tiredness or allergies, and headaches have many possible causes. That is perfectly fine. An eye test simply takes vision off the list, or catches it if it is the cause, so you know where to look next.

How quickly should I act if I notice a turning eye?

Fairly quickly. A constant turn, or a new one that appears suddenly, deserves a prompt appointment, because squints and lazy eye respond best to early treatment. An occasional turn in a very young baby can be normal, but if you are unsure, have it checked.