Ortho-K Lenses Malaysia: What Decides the Fee

Key takeaways

Ortho-k lenses are rigid contact lenses worn in sleep to reshape the cornea. The AAO says the effect lasts only while they are worn, and the short-sightedness returns when they are stopped.
In the ROMIO trial of 102 children aged 6 to 10, the eye lengthened 0.36 mm over two years with ortho-k and 0.63 mm with glasses, about 43% slower. The 2025 Cochrane review found 0.18 mm less growth in one year, at moderate certainty.
The main risk is a corneal infection. One survey estimated 13.9 per 10,000 patient-years in children, with a wide range of 1.7 to 50.4, and neither child affected lost visual acuity.
The fee is decided by the fitting, the custom lenses, replacements, follow-up visits and solutions. Ask any clinic for a written estimate that says what it includes.
No single course length is proven. Stopping suddenly can let the eye grow faster again, so a stop is planned with the doctor.

Ortho-k lenses (orthokeratology) are rigid contact lenses a child wears in sleep to reshape the front of the eye, and in trials they slow how fast short-sightedness worsens, though they carry a small risk of corneal infection. The fee is decided by the fitting, the lenses, replacements, follow-up visits and solutions, so this page names no price and lists what to ask about instead.

Dr Chan Li Yen, paediatric ophthalmologist in Petaling Jaya, writes this journal; the About page says where she practises. The long account of the lens is in overnight lenses (ortho-k) for children, and this page answers the question parents type first: what are we paying for?

What do ortho-k lenses do for a child's eyes?

They flatten the centre of the cornea, the clear window at the front of the eye, while the child sleeps, so distance looks clear in the morning without glasses. The American Academy of Ophthalmology (AAO) says the effect lasts only a short time: once the lenses are stopped, the cornea slowly goes back to its normal shape and the short-sightedness returns.

Ortho-k is one of several ways to slow myopia, alongside low-dose atropine drops, myopia-control glasses and time outdoors. It does not reverse short-sightedness. The AAO describes the aim of all of them as keeping it from getting worse. The options are set side by side in myopia control in Malaysia.

Does ortho-k slow myopia in children?

On average it does. In the ROMIO trial in Hong Kong, 102 children aged 6 to 10 were randomly given ortho-k or ordinary single-vision glasses. After two years the eye had lengthened by 0.36 mm with ortho-k and 0.63 mm with glasses, which is 43% slower. Seventy-eight children finished, and five stopped ortho-k because of adverse events.

The AAO's 2019 review of 13 studies found about half the growth over two years, roughly 0.3 mm against 0.6 mm, which corresponds to about 0.5 dioptres of prescription. It noted the effect may be greater when treatment starts at 6 to 8 years, and that rebound can occur after stopping.

The 2025 Cochrane review of 104 trials rated ortho-k as reducing eye growth by 0.18 mm over one year compared with no treatment, at moderate certainty, in children whose untreated eyes grew a median of 0.33 mm. Moderate certainty means the real figure could still differ. The same review found that adding low-dose atropine to ortho-k probably reduced growth by a further 0.12 mm.

Is there a review of ortho-k in Malaysian children?

There is a small study from Kuala Lumpur, not a consumer review. Researchers at Universiti Kebangsaan Malaysia followed 70 children aged 6 to 12 for 12 months, 45 wearing ortho-k and 25 wearing glasses. The eyes of the ortho-k group lengthened less, and the authors reported mild corneal staining and occasional infections that were more frequent with ortho-k but not statistically different from glasses.

Forty-five children is too few to measure how often a rare infection happens, so a quiet year in a small study does not settle the safety question. Star ratings online do not either; they cannot tell you how a particular child's eyes will respond.

Is ortho-k safe for children? What is the infection risk?

The main risk is microbial keratitis, an infection of the cornea that can scar it and threaten sight. The AAO says there is a risk of infection with ortho-k. One US survey of practitioners covered 677 children and 1,435 patient-years of wear and found two infections in children, an estimated 13.9 per 10,000 patient-years, with a wide range of 1.7 to 50.4. Neither child lost visual acuity. The authors judged the risk similar to other overnight lenses.

Hygiene is the child-sized part of this. Clean hands, fresh solution, a clean case and no water on the lens are the habits that protect, and for a young child a parent usually needs to be there each night. Contact lenses for children and teens covers the routine. If the eye turns red, painful, watery or sensitive to light, take the lens out and have the eye seen the same day; when a child's eye hurts explains what to do.

What does an ortho-k fitting and follow-up involve?

A fitting starts with a full eye examination and a map of the cornea's shape, then a lens is made for that child's eye. The AAO says ortho-k lenses are harder to fit than regular contact lenses and need more follow-up visits.

Each visit checks the health of the cornea and how clear the daytime vision is. Ask for the schedule in writing and for what happens if a visit is missed. A child who cannot reliably get to these visits, or whose bedtime routine would fall to the child alone, may be better served by drops or glasses, which are a fair choice and not a lesser one.

What decides the fee for ortho-k in Malaysia?

Several separate things decide it, and a clinic may bundle some of them and charge others on their own. This page quotes no figure. The parts to ask about are:

The first assessment, including the cornea map and the eye examination.
The lenses themselves: usually one for each eye, custom-made, so the number and the design both count.
Replacements: a lens can be lost, scratched or worn out, and a changing eye may need a new design.
Follow-up visits, which are more frequent than for glasses, and whether they are included or charged one by one.
Solutions, cases and any back-up glasses for the days the lenses are out.
Who sees the child: a doctor, an optometrist, or both.

Ask any clinic for a written estimate that says what the fee includes, what a replacement lens costs and what happens if the lenses turn out not to suit. Ten questions to ask before you pay for myopia control is a checklist for that conversation.

How long does an ortho-k course run?

There is no single proven length. The ROMIO trial ran for two years, and the AAO describes ortho-k as a treatment that works only while the lenses are worn. How long a given child wears them, and when and how to stop, is the doctor's decision after examination.

Stopping suddenly can let the eye grow faster again, which is the rebound the AAO review mentions. A planned stop is described in when can we stop myopia treatment. Over several years the visits, lens replacements and solutions add up, so the question to ask at the start is the cost of the whole course, not only the first month.

Take the lens out and see a doctor the same day if…

The eye is red, painful, watery or sore in light.
Vision is blurred and does not clear after the lens comes out.
There is a white or grey spot on the clear front of the eye.
The child has slept in a lens that touched tap or other water.
A lens will not come out, or the eye hurts every morning.

Is this urgent? Today, this week or routine

Common questions

What are ortho-k lenses for children?

They are rigid contact lenses worn overnight that temporarily flatten the cornea, so distance looks clear in the day without glasses. In trials they also slow how fast short-sightedness worsens. The effect fades when the lenses are stopped.

Do ortho-k lenses work for myopia control in children?

On average they slow it. In the ROMIO trial the eye grew 0.36 mm in two years with ortho-k and 0.63 mm with glasses. The Cochrane review found 0.18 mm less growth in a year at moderate certainty, so the true effect for one child can differ.

What is the ortho-k price in Malaysia?

This page quotes no price, because the fee depends on the fitting, the custom lenses, replacements, follow-up visits and solutions, and clinics bundle these differently. Ask for a written estimate that lists what is included and what a replacement lens costs.

Is ortho-k safe for a child?

The main risk is a corneal infection. A US survey estimated 13.9 per 10,000 patient-years in children, with a wide range because only two cases were found. Careful hygiene and prompt review of a red or painful eye lower the risk.

How long does a child wear ortho-k lenses?

No single length is proven. The ROMIO trial ran for two years. The doctor decides how long to continue and how to stop, because the eye can grow faster again after an abrupt stop.

Are there ortho-k reviews from Malaysia?

There is a 12-month study of 70 children aged 6 to 12 in Kuala Lumpur, which found less eye growth with ortho-k than with glasses and mild corneal staining that was not statistically different between groups. It is small, so it does not settle how often infections happen.

References

American Academy of Ophthalmology · Myopia control in children · www.aao.org
Ophthalmology 2019 · Use of orthokeratology for the prevention of myopic progression in children: a report by the American Academy of Ophthalmology (VanderVeen et al.) · pubmed.ncbi.nlm.nih.gov
Investigative Ophthalmology & Visual Science 2012 · Retardation of myopia in orthokeratology (ROMIO) study: a 2-year randomized clinical trial (Cho and Cheung) · pubmed.ncbi.nlm.nih.gov
Cochrane Database of Systematic Reviews 2025 · Interventions for myopia control in children: a living systematic review and network meta-analysis (Lawrenson et al.) · pubmed.ncbi.nlm.nih.gov
Optometry and Vision Science 2013 · The risk of microbial keratitis with overnight corneal reshaping lenses (Bullimore et al.) · pubmed.ncbi.nlm.nih.gov
Clinical Optometry 2025 · Impact of orthokeratology on corneal morphology, ocular health and myopia control in children: a 12-month assessment in Kuala Lumpur (Low et al.) · pubmed.ncbi.nlm.nih.gov

By Dr Chan Li Yen. General information only. It does not replace a consultation. If you are worried about your child's eyes or vision, please see an eye doctor.

Ortho-k lenses for children in Malaysia: what decides the fee