Orthokeratology (Ortho-K)

At Optometrist Parramatta

Correct your eyes while you sleep.

Orthokeratology (Ortho-K) is a safe, reversible, non-surgical method for correcting your vision overnight.

Many common vision problems result from the eye being too long, too short, or misshapen, which interferes with the eye’s ability to focus light.

Ortho-K treatment involves wearing a customised hard contact lens while you sleep, which gently reshapes your eye to correct your vision. The lenses are removed in the morning, and your eyes will retain their corrected shape throughout the day.

Because Ortho-K lenses are worn only while you are asleep, you are less likely to experience the dryness and irritation that can occur with traditional contact lenses.

Ortho-K is suitable for people of all ages, however, it is generally most successful in younger patients. Orthokeratology may also help slow progressive myopia in children and adolescents.

During our Orthokeratology Assessment, our optometrists will perform a comprehensive 360° Eye Test, retinal photography and corneal topography to determine whether Ortho-K is suitable for you or your child.

Benefits of Ortho-K

As orthokeratology is temporary and reversible, it is considered a safe and effective treatment for many common vision conditions.

Because Ortho-K lenses are worn only while you are asleep, you are less likely to experience the dryness and irritation that can occur with traditional contact lenses.

Get started with Ortho-K

Book In!

Book in for a comprehensive Ortho-K Assessment to determine your suitability and order your trial lenses.

Start With Your Trial Lenses

Upon collecting your trial lenses, your optometrist will show you how to insert, remove and care for them correctly and safely.

Enjoy great vision all day!

If any final adjustments are required, your optometrist will make these changes and order your final lenses. 

By the end of the first week, you should start experiencing the benefits of Ortho-K.

Book an Ortho-K Assessment today


We find that patients under the age of 30 experience the greatest success with Ortho-K.

It is most effective for people who are short-sighted with minimal astigmatism, and especially for children.  

As Ortho-K is an incredibly personalised service, prices vary depending on the prescription. Your optometrist will discuss pricing during your consultation. 

Some health funds will partially rebate Ortho-K treatment, depending on your cover.

The initial assessment for Ortho-K is covered by Medicare, subject to eligibility.

Ortho-K has been successfully used since 1962. Because it is a temporary and reversible treatment, orthokeratology is considered a very safe technology with almost no potential negative side effects.

As with regular contact lenses, there is a small risk of infection if the lenses are not handled in a safe and hygienic manner. This risk is greatly reduced by following the cleaning and handling instructions, which your optometrist will discuss with you.  

The great thing about Ortho-K is that after a bit of adaptation, most people don’t feel the lenses at all! They are a hard contact lens, so when you first insert them, you can feel them. However, just like a retainer, your eyes adapt and as you sleep you will forget they’re even there!

If you do decide to discontinue the treatment, your eyes will simply revert to their original, uncorrected state. Ortho-K is temporary, so once you stop wearing the contact lenses, the treatment stops working.

The first step is to book a commitment-free Ortho-K assessment so that we can establish your eligibility and get started with treatment!

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