What Ortho-K does
Orthokeratology uses individually fitted rigid lenses worn during sleep to temporarily change the front surface of the cornea. Suitable wearers remove the lenses after waking and may have clearer unaided daytime vision.
Ashfield NSW local optometrist
Orthokeratology and Ortho-K assessment in Ashfield.
Orthokeratology, often called Ortho-K, uses specially fitted rigid contact lenses worn overnight to temporarily reshape the front surface of the eye. It requires careful fitting, hygiene and regular review.
Key facts
- Ortho-K uses specially designed rigid lenses worn overnight; its corneal reshaping effect is temporary and requires continued wear as advised. Source: International Myopia Institute
- Evidence supports Ortho-K as a myopia-control option for suitable children, but outcomes vary and ongoing monitoring is required. Source: International Myopia Institute
- Overnight contact-lens wear carries an infection risk, so hygiene, correct handling and scheduled reviews are essential. Source: International Myopia Institute
General information only. Individual suitability, benefits and risks depend on an eye examination and may vary between patients.
Orthokeratology assessment at iFocus Optometrists
Learn about orthokeratology in Ashfield, including overnight contact lens assessment, suitability, reviews and myopia control discussions at iFocus Optometrists.
At a glance
- Ortho-K suitability discussion
- Overnight lens hygiene advice
- Children's myopia control conversation
- Regular review planning
Reviewed by: Dr. Shirley Wang, Optometrist
Qualifications: Bachelor of Optometry, UNSW
Languages: English, Mandarin and Cantonese
Last medically reviewed: 28 July 2026
The suitability assessment
The optometrist considers prescription, corneal shape, eye health, tear comfort, age, expectations and whether the patient and family can follow the required cleaning, handling and review routine.
Myopia-management role
For suitable children, Ortho-K may be considered as an evidence-supported myopia-control option. It is not a permanent correction, does not suit every child and needs objective follow-up to assess response.
Safety, hygiene and urgent symptoms
Overnight lens wear requires strict hand hygiene, approved cleaning and storage, no water exposure, correct replacement and scheduled reviews. Remove lenses and seek prompt professional care for pain, marked redness, light sensitivity, discharge or sudden blur.
What the fitting journey involves
The process may include baseline measurements, trial or ordered lenses, early after-wear checks and ongoing reviews. Timing, fees, lens replacement and aftercare are confirmed before treatment starts.
Compare myopia options
Clinical and consumer references
Common questions
What is Ortho-K?
Ortho-K is orthokeratology: specially fitted rigid contact lenses worn overnight to temporarily reshape the cornea and provide clearer daytime vision for suitable patients.
Is Ortho-K suitable for children?
Some children may be suitable, especially when myopia management is being discussed, but suitability requires an optometrist assessment and ongoing reviews.
Can I sleep in normal contact lenses instead?
No. Ortho-K uses specially designed lenses and should only be worn overnight under professional advice. Do not sleep in regular contact lenses unless specifically prescribed for that use.
Where can I ask about Ortho-K near Ashfield?
You can book an appointment with iFocus Optometrists in Ashfield to discuss Ortho-K suitability and myopia control options.