Regular eye tests are essential for children's development, learning, and wellbeing. All children in the UK are entitled to free NHS eye tests, and the first test should happen before your child starts school, ideally around age three or four.
Good vision is critical for learning. Around 80% of what children learn comes through their eyes, and undetected vision problems can significantly affect their progress at school. Common childhood eye conditions include amblyopia (lazy eye), which affects around 1 in 50 children and is most effectively treated before age seven; squint (strabismus), where the eyes do not look in the same direction; long-sightedness, short-sightedness, and astigmatism; and colour vision deficiency.
Signs that your child may have a vision problem include sitting too close to the television or holding books very close, squinting or tilting their head to see, rubbing their eyes frequently, one eye turning inward or outward, difficulty concentrating or completing tasks, avoiding reading or close work, complaining of headaches, and poor performance at school. However, many children with vision problems show no obvious signs — which is why regular testing is so important.
During a children's eye test, the optometrist uses age-appropriate techniques. For younger children, this includes picture matching games, shape recognition, and objective measurement techniques that do not require verbal responses. For older children, standard letter charts are used. The optometrist will also check how well the eyes work together (binocular vision), look for squint or lazy eye, and examine the general health of the eyes. The appointment typically takes 20 to 40 minutes.
Children should have annual eye tests throughout their school years. If glasses are prescribed, an NHS optical voucher is provided to help with the cost. Most opticians offer a dedicated range of children's frames that are durable, flexible, and designed for active young wearers — many are fully covered by the voucher value.