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The Eye Practice
The Eye Practice
Ortho-k contact lenses are used for myopia.

Ortho-k for myopia

Ortho-k contact lenses are used to treat myopia. Worn at night, they gently correct the shape of the eye to give clear distance vision.

What is ortho-k?

Ortho-k (clinically known as orthokeratology) uses bespoke contact lenses to treat myopia (short-sightedness). These contact lenses temporarily reshape the front surface of the eye, so correcting vision.

Ortho-k contact lenses are usually worn overnight. While asleep they gently correct the shape of the cornea. Next morning the orthot-k lenses are taken out, leaving the patient with clear distance vision.

Treatment using ortho-k lenses is non-invasive (no surgery) and completely reversible. It is suitable for both children and adults, although it is most effective for children who have myopia.

Ortho-k FAQs

No, the vision improvement is only temporary. Indeed, the effect wears off after about a day or two.

Yes. It is a proven method of reducing the rate at which myopia worsens.

Children as young as 8 years of age can have ortho-k treatment.

There is a slightly higher risk of complications like eye infections by comparison with people who don’t wear contact lenses.

Free ortho-k eBook

About myopia ortho-k contact lenses

Ortho-k treatment uses hard contact lenses. These are tailor-made specifically for each patient, moulding the surface of the eye to a new shape when worn. They are usually worn each night (or every second night) and removed first thing in the morning.

Like all hard contact lenses, they need cleaning and storing after use.

Benefits of treating myopia with ortho-k lenses

Ortho-k improves vision without the need for expensive eye surgery or the use of other eye wear. In addition, the treatment does not perminently change the cornea. The eye will return to its original shape after a few weeks.

This makes ortho-k an ideal alternative to surgury for people who don’t want to wear glasses or contact lenses.

Another benefit of ortho-k is that it is one of the most effective treatments for myopia. Studies have show that wearing the lenses reduces the progression of myopia in children, teenagers and young adults.

Ortho-k offers freedom from glasses and the hassle of wearing contact lenses during the day. It is also a great option anytime glasses or contact lenses become a nuisance, like when swimming, playing sport, or when working in dusty environments.

In addition, beacuse patients no longer need to wear contact lenses during the day they experience less eye irritation and dry-eye.

How to get ortho-k contact lenses

There are several steps in fitting someone with ortho-k contact lenses for myopia:

Initial consultation

An initial consultation determines if ortho-k is likely to be successful. This involves mapping the shape of the cornea, as well as a complete eye test.


Petients see their optometrist for a contact lens fitting to find the perfect lens for their eye.

Learning to put in ortho-k lenses

Patients learn how to insert, remove and clean the lenses with the help of an optometrist.


Myopia patients return to their optometrist after wearing their ortho-k lenses for a week. At that time measurements are take to see how effective the lenses are and if they need tweaking for better effect. This may happen a number of times until the perfect pair of lenses found. It’s worth noting that there is no additional charge for lenses during the review period.

Learn more about myopia

Eye diseases caused by myopia

Myopia can cause eye disease like cataract, glaucoma and retinal detachment. It happens when the eye elongates, stretching delicate tissues.

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