ORTHOKERATOLOGY
Ortho-K Treatment: Non-Surgical Vision Correction for Myopia Control at Orthokeratology Sydney
Ortho-K uses specially designed contact lenses during sleep to temporarily alter the corneal surface and improve daytime distance vision.
For suitable children, it may also help slow the eye growth associated with myopia. For adults, the main goal is usually reducing reliance on daytime vision correction.
Ortho-K is not laser surgery and is not a permanent cure. Refractive surgery corrects focus but should not be presented as treatment to stop childhood myopia progression.
A comprehensive examination is needed before recommending overnight lenses. Prescription, corneal shape, ocular health and the ability to follow lens-care instructions all matter.
Research supports an average myopia-control benefit in children, but study results do not guarantee that progression will stop in an individual child. Compare evidence across specific treatments and follow-up periods.
Temporary changes in corneal shape should not be described as reversal of the underlying myopia. Continued monitoring is needed even when daytime vision is clear.
How Does Ortho-K Work?
The fitted lens and tear layer alter the distribution of cells at the corneal surface. The effect wears off after lens wear stops, so regular wear is usually needed to maintain the result.
Who Can Benefit from Ortho-K?
Suitability is assessed individually, rather than assumed from age or lifestyle alone.
Children need reliable adult support where appropriate. Adults should discuss prescription range, work and driving requirements, dry-eye symptoms and any existing eye condition.
Benefits and Limitations of Ortho-K
Overnight contact lens wear carries an infection risk. Pain, redness, light sensitivity or reduced vision require lens removal and urgent eye-care advice.
- Non-surgical: no laser procedure is involved.
- Temporary: the effect usually reduces when lens wear stops.
- Daytime convenience: suitable patients may need less daytime eyewear.
- Myopia management: a possible option for selected children with regular monitoring.
The Ortho-K Treatment Process
The fitting process includes assessment, lens selection, handling instruction and scheduled reviews. The practitioner will explain expected adaptation and what to do if vision or comfort changes.
- Assessment: prescription, corneal mapping, eye health and practical suitability.
- Fitting: lenses selected for the individual corneal shape.
- Training: cleaning, insertion, removal and a personalised wearing schedule.
- Reviews: checks of vision, lens fit, corneal health and treatment response.
Your Ortho-K questions answered
How soon will vision improve with Ortho-K?
The adaptation period varies with prescription, lens fit and individual response. Follow the review schedule and use any recommended backup correction until vision is adequate for your activities.
Is overnight lens wear risk-free?
No. Infection and other complications can occur. Proper cleaning, avoiding water, following the wearing schedule and prompt assessment of symptoms reduce avoidable risks.
Arrange an individual assessment · Ortho-K benefits and risks · Daily lens care
Further reading: International Myopia Institute evidence review. For broader childhood myopia information, visit Myopia Prevention.