Can Children With High Myopia Use Ortho-K? What Parents Should Know
EMME Visioncare provides custom-fitted Ortho-K in Singapore at The Cathay and Jelita Mall.
If your child has high myopia, Ortho-K may still be an option — but the prescription alone does not determine suitability. In higher prescriptions, careful assessment, lens design and follow-up become even more important.
Orthokeratology (Ortho-K) lenses are worn overnight to temporarily reshape the cornea so that vision can be clearer during the day without glasses or contact lenses. In children, Ortho-K is also used as one option in myopia management. These are related but different goals: daytime vision correction is not the same as slowing the eye’s growth.
Does high myopia automatically rule out Ortho-K?
No. However, higher levels of myopia can make fitting more complex and outcomes less predictable. A larger treatment effect may be needed, and some children may still require residual daytime correction.
Suitability depends on more than the spectacle prescription. Your optometrist will also consider the shape and toricity of the cornea, eye health, the amount of astigmatism, the child’s age and maturity, previous myopia progression, axial length, and whether the child and family can manage lens hygiene and follow-up reliably.
This is why two children with a similar prescription may receive different recommendations.
Why correction and myopia control should be considered separately
For a child with high myopia, the question is not only, “Can Ortho-K correct the prescription?” It is also, “How is the child’s myopia progressing, and how should eye growth be monitored?”
Myopia progression is associated with elongation of the eye. Axial length measurement therefore provides useful information alongside refraction when monitoring childhood myopia. A child may achieve good unaided daytime vision with Ortho-K, but regular myopia reviews are still important.
A real EMME case involving high myopia
EMME optometrist Jaycob YJ Chin published a case report with the Singapore Optometric Association involving a 7-year-old child with approximately -7.00D of myopia and significant corneal toricity.
Because the corneal shape made a standard spherical design more prone to decentration, a toric Ortho-K design was selected. In this individual case, unaided vision reached 6/6 in each eye by about one week, with stable, well-centred treatment zones thereafter. Axial length was followed over 17 months.
The result was encouraging, but it is important to interpret it correctly. This was a single, uncontrolled case and cannot prove that another child with a similar prescription will have the same outcome. The report instead illustrates why detailed corneal topography, individual lens design, ongoing monitoring and a contingency plan matter when Ortho-K is considered for higher myopia.
What does an Ortho-K assessment involve?
At EMME Visioncare, suitability is assessed from the whole clinical picture rather than a prescription cut-off alone. For children being assessed for myopia management, this includes refraction, eye-health evaluation and axial-length measurement. If Ortho-K is being considered, corneal topography is used to map the shape of the cornea and guide lens design.
Parents should also expect a discussion about realistic visual expectations, lens handling and hygiene, possible limitations, and the follow-up schedule. Overnight lens wear carries a small but important risk of eye infection, so good hygiene, parental supervision and prompt review of any red or painful eye are essential.
Should my child with high myopia be assessed for Ortho-K?
If your child has a high prescription or has been progressing quickly, it may be worth discussing Ortho-K as part of a broader myopia-management assessment. High myopia does not automatically mean Ortho-K is suitable — or unsuitable.
The more useful question is whether the child’s corneal shape, prescription, eye health, progression pattern and practical circumstances make Ortho-K a reasonable option.
At EMME Visioncare, we assess these factors before recommending a myopia-management plan. Learn more about our Ortho-K service and childhood myopia-control assessments, or arrange an assessment if you would like to understand which options may suit your child.
References
- Chin JYJ. Toric Orthokeratology in a Young Child with High Myopia. Singapore Optometric Association. Read the case report.
- Singapore Optometric Association. Orthokeratology Fitting and Myopia Management Guideline 2024. View the guideline.