Children's Eye Exams in Ontario: When, Why, and What to Expect
Vision problems affect 1 in 4 children and are a leading cause of learning difficulties. In Ontario, children under 20 receive OHIP-insured eye exams — here is what parents need to know.
Updated · Dr. Ema Hazra
An estimated 1 in 4 children has a vision problem significant enough to affect learning, yet many go undetected because children assume their vision is normal — they have no point of comparison.
In Ontario, all children under 20 are entitled to annual OHIP-insured eye exams. This is one of the most accessible and underused health benefits available to Ontario families.
Why early eye exams matter
The visual system develops rapidly in the first decade of life. Conditions caught early — during the period of visual plasticity — can be treated effectively. The same conditions identified late have far worse outcomes:
- Amblyopia (lazy eye) is best treated before age 7–8; outcomes decline sharply after 10
- Strabismus (eye turn) can lead to amblyopia if untreated and causes significant social and developmental impact
- Uncorrected refractive errors (nearsightedness, farsightedness, astigmatism) are a leading cause of reading difficulties and school underperformance
- Colour vision deficiency — identified early, teachers and parents can adapt learning materials accordingly
Recommended exam schedule
| Age | Recommendation |
|---|---|
| 6–9 months | First comprehensive exam |
| 2–5 years | Second exam |
| School entry (5–6 years) | Exam before kindergarten |
| 6–19 years | Annual exam |
These are minimum recommendations. Children with risk factors (family history of amblyopia, strabismus, or high refractive error; premature birth; developmental delay) should be seen earlier and more frequently.
What a children's eye exam includes
A comprehensive pediatric eye exam assesses:
- Visual acuity — how clearly each eye sees, measured separately
- Refractive error — the glasses prescription, determined objectively without relying on the child's responses
- Binocular vision — how the eyes work together (alignment, focusing, depth perception)
- Eye health — internal and external structures examined with specialized instruments
- Colour vision — typically tested at the first school-age exam
The exam is painless. Dilation (eye drops to widen the pupils) may be used to get the most accurate prescription measurement and to examine the retina clearly.
School vision screenings are not enough
Vision screenings done at school check only basic distance acuity — they miss:
- Farsightedness (children can often compensate for mild-to-moderate farsightedness and pass a distance screen)
- Convergence insufficiency (difficulty focusing for near tasks)
- Amblyopia if only one eye is affected
- Binocular vision problems
A child who passes a school screening may still have a vision problem. A comprehensive eye exam is not interchangeable with a screening.
Glasses for children
Children's glasses should be impact-resistant (polycarbonate or Trivex lenses) and have spring-hinge frames for durability. For active children or those in sports, a sports-specific frame or protective eyewear may be recommended.
OHIP does not cover glasses. Families receiving Ontario Works or ODSP may be eligible for a basic frames and lenses subsidy.
Toronto Eye Care
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Book an appointment →Frequently Asked Questions
- At what age should a child have their first eye exam?
- The Canadian Association of Optometrists recommends a child's first comprehensive eye exam between 6 and 9 months of age, a second exam between ages 2 and 5, and annual exams once they start school. Early exams detect conditions like amblyopia (lazy eye) and strabismus that are far easier to treat before age 7–8.
- Does OHIP cover children's eye exams in Ontario?
- Yes. OHIP covers one complete eye exam per year for all Ontarians under 20, at no cost to the patient or family. No referral is needed. Simply book directly with a licensed optometrist.
- Can a child have an eye exam if they cannot read?
- Yes. Optometrists use objective techniques that do not require the child to read or speak — including retinoscopy (shining a light into the eye to measure refraction) and picture-based charts for young children. Infants and toddlers can have their prescription measured accurately.
- What is amblyopia and why does early detection matter?
- Amblyopia (lazy eye) is reduced vision in one eye that is not correctable with glasses alone — it develops because the brain suppresses the weaker eye during visual development. Treatment involves correcting any refractive error and often patching the stronger eye to stimulate the weaker one. Success rates are highest when treatment begins before age 7, and outcomes become significantly worse after age 10.
- What are signs that a school-aged child may have a vision problem?
- Warning signs include: sitting close to the TV or board, squinting, frequent headaches especially after reading, losing their place while reading, avoiding near tasks, covering or closing one eye, a turned or crossed eye, or a teacher reporting attention difficulties. However, many children with vision problems show no obvious signs — regular eye exams are the only reliable way to detect them.
Author
Dr. Ema Hazra, OD — Pending clinical review
Optometrist, Spadina Optometry
A Toronto native, Dr. Ema Hazra earned her Doctor of Optometry from the University of Waterloo in 2018 and returned to Spadina Optometry — where she had previously interned — bringing experience from an ocular disease externship at Eye Associates of Pinellas in Florida alongside leading ophthalmologists specializing in glaucoma, macular degeneration, and retinal disease. Her clinical interests include myopia control, specialty contact lenses, dry eye disease, and refractive surgery, and she is passionate about providing comprehensive care for patients of all ages, especially children.