What Age Should a Child Have an Eye Test?

Wondering what age a child should have an eye test? The reassuring answer is that there is no minimum. An optometrist can examine a child of any age, even a baby of a few weeks old. As a general guide, children should have their first full eye test from around the age of three to four, and then every one to two years after that. If something is worrying you before then, please do not wait. We will happily see your child sooner.

The tricky part is that children rarely tell you their sight is blurry because they have nothing to compare it with. To them, the way they see is simply normal. That is why a routine eye test matters so much, and why it is worth understanding the timeline below.

The children’s eye test timeline at a glance

Here is how your child’s eye care typically unfolds in the UK, from birth through the school years.

This is a general guide. If you ever have a concern, book a test rather than waiting for the next scheduled check.

Why a first eye test matters more than parents often realise

Most children have healthy eyes and will not need glasses. The point of an early test is to catch the small number of problems that are far easier to treat when they are found young. The College of Optometrists found that, on average, children in the UK are five years old before their first eye examination, which is later than ideal.

Among children who had seen an optometrist, more than a third turned out to be short-sighted, and around one in five had a lazy eye. For those children, an early test made a real difference, because a lazy eye that is missed can lead to permanently reduced vision in that eye.

Timing is the key. A lazy eye is most successfully treated before the age of seven, and the earlier the better. After that window, it becomes much harder, and sometimes too late, to fully correct. An early eye test is genuinely protective, not just a box to tick.

Can a baby or toddler have their eyes tested?

Yes, and your child does not need to be able to read, talk, or even sit still. Rather than asking your child to read letters, we use lights, pictures and clever, age-appropriate tests that watch how their eyes respond to what they see. It is calm, gentle and often feels more like play than a medical appointment.

The newborn and six-week checks are valuable, but they look for obvious physical problems rather than giving a full picture of how well your child sees. A proper eye examination goes further.

If eye problems run in your family, do not wait. A history of squint, lazy eye or strong glasses from a young age is a good reason to bring your child in early. We see children of all ages, so there is no need to hold off.

Why you should not rely on the school screening alone

Starting school is one of the most common moments parents think about an eye test, and a good one. Around this age, many assume the school vision screening will catch any problem. It is a helpful safety net, but there are two important catches.

First, it is not offered everywhere. Whether your child is screened at school depends on where you live, so it is something of a postcode lottery. If your area does not run it, your child may not be checked at all unless you arrange it yourself.

Second, a screening is not a full eye examination. It mainly checks distance vision and looks for a lazy eye. A child can pass and still have an issue with focusing, near vision or how their eyes work together. A full eye test is far more thorough.

It is worth knowing that children’s eye tests are free on the NHS, yet many parents are not aware of this, and a good number rely on the school check alone. You do not have to.

How often should children have their eyes tested?

As a minimum, every one to two years. Some children should be seen more often, for example, every six to twelve months, if your optometrist advises it, if your child already wears glasses or contact lenses, or if there is a family history of eye conditions.

Regular checks matter most through the school years, because short-sightedness usually appears and progresses between the ages of six and thirteen. Catching it early means it can be corrected and managed before it affects your child’s learning or confidence. You can read more in our children’s eye health guide.

Children’s eye tests are free on the NHS

In England, Wales and Northern Ireland, NHS sight tests are free for all children under sixteen, and for young people under nineteen who are in full-time education. In Scotland, NHS eye examinations are free for everyone. You do not need a referral, so you can book directly.

If your child needs glasses, you will also receive an NHS optical voucher to help with the cost. Depending on the prescription, the voucher often covers a pair of glasses in full, or you can put it towards a frame you both love from our children’s range.

Trust your instincts and do not wait for the next scheduled test

Scheduled checks are only part of the story. If you notice your child sitting very close to the screen, squinting, rubbing their eyes, tilting their head to look at things, or struggling more than expected at school, book a test rather than waiting for a routine appointment or the school screening.

Acting on a hunch costs nothing and can make all the difference. Our children’s eye health guide covers the everyday signs to watch for in more detail.

Booking your child’s first eye test at Perspective

At Perspective Optometrists in Belsize Park, we see children of all ages in a relaxed, unhurried setting. There is no rushing, no jargon and plenty of patience, with picture-based tests for little ones and a warm welcome for nervous first-timers. You are welcome to stay with your child throughout.

Whether it is a first test from age three, a follow-up, or simply a check because something has caught your attention, we will look after your child’s eyes as carefully as we look after our own.

Frequently asked questions

At what age can a child first have an eye test?

There is no minimum age. An optometrist can examine a baby a few weeks old. The recommended age for a first full eye test is around three to four, but if you have any concerns before then, do not wait to bring your child in.

Does my child need to be able to read?

No. Children do not need to read, talk or sit still to have their eyes examined. We use lights, pictures and tests that watch how the eyes respond, so even very young children can be assessed accurately.

Is my child’s eye test free?

Yes. NHS sight tests are free for all children under sixteen, and for under-16s in full-time education. In Scotland, they are free for everyone. If glasses are needed, an NHS voucher helps with the cost.

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

Ideally yes. A school screening is a quick check that mainly looks at distance vision, and it is not offered in every area. A child can pass and still have a problem with focusing or how the eyes work together, which a full eye examination would pick up.

Should I wait until my child starts school to book an eye test?

No need to wait. The recommended first full eye test is from around three to four years old, before school begins. A school vision screening is helpful, but it is not offered in every area and is not a substitute for a full eye examination, so booking one yourself gives you a clearer picture.