The vision check before a new sport

The uniform is bought. The racquet, or the shin guards, or the swimming goggles, are bought. Somewhere on the list, between registration and the first practice, there is usually no line at all for finding out how well your child actually sees, or what their eyes need once the ball starts moving.

It is an easy thing to skip, because nothing about it feels urgent. It is also one of the more useful checks a family can do before a new sport, precisely because it is cheap, quick, and catches problems before repeated impact does.

Why does my child need a vision check before starting a sport, if nothing seems wrong?

Because a weak or reduced-vision eye is often invisible in daily life. A child with meaningfully weaker sight in one eye can still read, walk, and play normally, because the stronger eye is doing enough of the work that nothing looks wrong from the outside, and the child themselves may not know to mention it. Sport is where that gap tends to show up first, in misjudged catches, poor depth judgement, or simply favouring one side without realising why. A basic vision check finds this before the sport does, rather than after.

Which sports carry the highest risk of eye injury for children?

Basketball, baseball and softball are named among the sports with the highest risk of eye injury in children. A wider list of higher-risk sports includes ice hockey, lacrosse, racquetball, squash, cricket, fencing, field hockey, and full-contact martial arts. What most of these share is a fast, relatively hard, roughly eye-sized ball, or a stick or racquet swung near head height, which is exactly the combination that tends to injure an eye. Eye injuries are a major, largely preventable cause of reduced vision in children, and a substantial share of them happen during exactly this kind of sport.

Do regular glasses or sunglasses protect my child's eyes during sport?

No, and this surprises a lot of parents. Regular eyeglasses and sunglasses do not provide enough protection for sport, and standard lenses can shatter under an impact they were never built to withstand, occasionally turning a blow into a cut. Protective eyewear for sport is generally made from polycarbonate, an impact-resistant, shatterproof plastic, and sports goggles are expected to meet a recognised safety standard with a minimum lens thickness, not simply look like protective gear.

How do I know what protective eyewear my child actually needs?

It depends on the sport, and the requirements genuinely differ. Ice hockey and male lacrosse call for a helmet with full-face protection; fencing needs a full-face cage; football uses a polycarbonate shield on the helmet. Basketball, racquetball and soccer call for sports goggles with polycarbonate lenses. Baseball and softball need a polycarbonate face guard or other certified protection built into the batting and base-running helmet. Lower-risk sports such as cycling and tennis can generally use sturdy, well-fitted frames with polycarbonate or CR-39 lenses. Some sports, including ice hockey, fencing, racquetball and squash, already require certified protective eyewear as part of their own rules, which makes the choice simple; for others, an eye doctor or the sport's own equipment guidance can point you to the right standard. One general rule holds everywhere: goggles without proper lenses are not effective, whatever they look like.

This is also worth knowing if your child already wears glasses day to day: prescription glasses correct vision, but ordinary frames and lenses are not built to withstand a fast ball or a direct blow, and a broken lens near the eye can cause more harm than the original impact. A child who needs vision correction and plays a higher-risk sport generally needs sport-specific protective eyewear made to their prescription, rather than their everyday glasses worn underneath a mask or relied on alone. What happens after a child needs glasses covers the everyday side of wearing them; sport is a case where the everyday pair and the sport pair genuinely need to be different objects.

My child has reduced vision in one eye. Does that change anything?

Yes, meaningfully. A child with significantly reduced vision in one eye, sometimes called functionally one-eyed, should wear appropriate protective eyewear for every sport, not only the higher-risk ones, because an injury to the stronger eye in that situation carries far higher stakes: there is no second eye to fall back on. Boxing and full-contact martial arts should be avoided altogether in this situation, since proper eye protection is impractical or simply not permitted in those sports. If your child has a known weak or amblyopic eye, our piece on the hidden weak eye explains how that can go unnoticed for longer than parents expect, which is one more reason a vision check belongs before the sport starts, not after an injury prompts one.

A quick pass-fail screen is a reasonable start. It is not the same as knowing your child's eyes have been properly looked at.

Is a school or club vision screening the same as a proper eye check?

Not quite. A quick pass-fail vision screening, of the kind some schools already run, is a reasonable start and can flag a child who clearly falls short of a basic visual standard. It is not designed to catch everything a full eye examination would, including some children who would genuinely benefit from glasses, or a specific finding relevant to their particular sport. Research on pre-participation vision screening in older athletes has found it reasonably good at confirming a minimum standard was met, but poor at identifying who would actually benefit from corrected vision or who had a significant eye finding worth knowing about. If your child has never had a full eye check, and particularly if we are talking about how a child's eyes are actually tested, a new sport is a sensible, low-drama moment to arrange one, rather than relying on the school screening alone.

My child plays badminton specifically. Is there anything different to know?

Badminton carries its own well-recognised injury pattern, because a shuttlecock travelling at speed and roughly the size of an eye socket is a genuinely dangerous combination at close range. Our piece on the shuttlecock and your child's eye covers that specific injury risk and the eyewear it calls for. This article is about the broader, upstream step that applies before any sport: finding out how your child actually sees, and making sure whatever eye protection they wear is built for the sport they are about to start, not borrowed from everyday life.

Common questions