

Ortho-K treatment corrects your vision while you sleep.
Orthokeratology, commonly called Ortho-K, is a non-surgical procedure that eliminates the need for glasses or contact lenses during the day. With Ortho-K you wear specially designed lenses at night while sleeping. These lenses gently change the shape of your eye so that you can see clearly, with your natural vision, during the day.
This gentle and effective technique is primarily used to correct myopia (shortsightedness) but in many cases, can also correct hyperopia, astigmatism and even presbyopia. It is an alternative to LASIK for those who are not prepared to have eye surgery.
Ortho-K is often suitable for children because, as well as correcting vision, the treatment has also been proven to slow or stop the progression of their myopia over time, which lowers the risk of developing sight-threatening eye disease later in life.
For more information, visit https://www.oso.net.au/what-is-orthok/
What you need to know
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
Ortho-K treatment corrects your vision while you sleep. Specially designed rigid gas permeable lenses are worn overnight to remove the need for spectacles and contact lenses through the day.
Ortho-K lenses gently reshape the cornea and can be effective for a range of prescriptions. Ortho-K lenses are removed in the morning and the reshaped cornea provides sharp vision throughout the day.
Ortho-K lenses need to be worn nightly to maintain the new shape, otherwise the cornea will gradually return to its original curvature.
What you need to know
How does Ortho-K work?
Ortho-K lenses are custom-fitted to gently reshape the front surface of your eye while you sleep. This temporary change allows light to focus correctly on the retina, giving you clear vision throughout the day— without the need for glasses or contact lenses.
Who is a good candidate for Ortho-K lenses?
Ortho-K is ideal for:
• Children and teens with progressing increasing myopia (short-sightedness)
• Adults who want freedom from glasses and daytime contacts
• Athletes and active individuals who need clear vision without restrictions
• People who experience dry eye discomfort with regular contact lenses
What are the benefits of Ortho-K?
Clear vision all day – No need for glasses or daytime lenses
Non-surgical and reversible – A great alternative to laser eye surgery
Slows myopia progression – Proven to help protect long-term eye health in children
Perfect for active lifestyles – No hassle with glasses or lenses during sports
How quickly will I see results with Ortho-K?
Most people experience noticeable vision improvement within the first few nights of wearing Ortho-K lenses, with full correction typically achieved in one to two weeks. Our Optometrists are experienced in Ortho-K, ensuring each patient receives the best-fit lenses for rapid and effective results.
How often do Ortho-K lenses need to be replaced?
Ortho-K lenses generally last 12 to 18 months with proper care. Regular reviews check-ups allow us to check they the lenses are working effectively. , making make any necessary adjustments as required.
How effective is Ortho-K at slowing short-sightedness?
Ortho-K is clinically proven to slow the progression of myopia (short-sightedness) in children and teens. By reshaping the cornea, it helps reduce the eye’s elongation, which is linked to worsening myopia. We can tailor Ortho-K treatments to protect your child’s long-term vision. Myopia usually stabilises by the mid twenties.
How long does vision improvement last each day?
Once full correction is achieved, vision remains clear all day long after removing the lenses each morning. Most patients enjoy sharp eyesight for 24+ hours, making Ortho-K an ideal alternative to glasses and traditional contact lenses.
Is Ortho-K a permanent solution?
No, Ortho-K is a non-surgical and reversible treatment. If you stop wearing the lenses, your corneas will gradually return to their original shape, and your prescription will return. However, with consistent nightly wear, you can enjoy clear vision and myopia control for the long-term.