What is Ortho-K
Correcting vision for adults & kids overnight.
Orthokeratology — often called Ortho-K or OK lens for short — is a form of safe, reversible, non-invasive and non-surgical vision correction available to both adults and children.
Ortho-K are special night-time contact lenses worn during sleep to restore clear vision without glasses. You may have heard of them advertised as "Dream Lenses", "Good Night Lenses", "Eye Braces" by some practices.
4 STEPS TO CLEAR VISION USING ORTHO-K LENSES
- Insert Ortho K lenses before you sleep.
- Sleep well.
- Remove Ortho K lenses when you wake up.
- Store Ortho K lenses in solution to clean.
As orthokeratology requires specific instruments, skills and training, not all optometrists can prescribed or fit these lenses. An optometrist with expertise and experience in assessing and fitting Ortho-K lenses is sometimes called an orthokeratologist, analogous to how dental braces are fitted by an orthodontist.
Our experienced orthokeratology practitioner is a member of the American Academy of Orthokeratology & Myopia Control, and participates in continuing professional development and training in Ortho-K to stay at the forefront of this treatment technology.
This clinic is equipped with the latest in digital corneal topography, ocular biometry and 3D lens design technologies, all to ensure that our clients can enjoy the best results possible with their Ortho-K vision treatment.
For adults, Ortho-K gives you the freedom to enjoy clear vision without wearing glasses or daytime contacts. Some of our clients are long-time soft contact lens wearers seeking an alternative as their eyes get too dry with regular contacts. Some have considered laser surgery but wish to try a non-invasive option, or their prescription hasn't stabilise enough yet for permanent surgical correction.
For children and teenagers, Ortho-K lenses have two benefits:
Restoring their vision to be glasses-free for school, sport and all their activities
Slowing down the progression of their short-sightedness (myopia) and helping to prevent their prescription from getting stronger, by reducing abnormal elongation of the eye. That means better vision and better eye health.
Ortho-K are a unique type of rigid gas-permeable contact lens. It is precision-designed and shaped that when the lens is worn during sleep the lens and tear layer of the eye together produce a gentle pressure on the cornea, moulding its shape. Each fully customised lens has a treatment effect pre-programmed for each individual's prescription, eye shape and vision needs. Ortho K lenses are comfortable to wear.
It is a safe and completely reversible process. If the lens is not worn for 48-72 hours, the effect wears off and the cornea gradually returns to its natural shape. For many individuals, Ortho-K is a safe, non-surgical and non-permanent alternative to laser corrective surgery. In children, it has the added benefit of significantly slowing down myopia progression that regular glasses and contact lenses simply cannot achieve.
What's new are the technologies that make Ortho-K correction better than ever before. Advances in high-oxygen breathable lens materials, computer-aided lens design software and precision lens shaping technologies, Ortho-K night lenses are now safer, more comfortable, corrects a wider range of prescriptions and give more predictable results than was previously possible. Here at EMME Visioncare, we design and fit the latest-generation 3D custom Ortho-K lens technology.
All our Ortho-K lenses are individually designed using the latest generation, fully-customisable 3D Ortho-K technology, delivering superior results and the ability to correct more complex prescriptions and eye shapes, compared to older Ortho-K systems with limitations in lens parameters.
People who are non-compliant wearers of regular, low-oxygen soft lenses and cosmetic contact lenses are at higher risk than a diligent OK lens wearer. Cases of eye infections across all contact lens use are largely associated with poor hygiene and poor compliance such as not washing hands prior to lens handling, using tap water to rinse lenses, showering or swimming with lenses (does not happen with Ortho-K), improper lens disinfection and re-using cleaning solutions. At our office, we maintain a 100% safety record with no incidence of serious complications involving Ortho K wear.
Kids are great candidates for OK lenses — they can see clearly for school, sports, swimming and all their other activities without the inconvenience of glasses, or the risk of breaking or losing their glasses or day-time contacts. For children with myopia (short-sightedness, or near-sightedness) Ortho K is also one of the most effective treatments for slowing their progressive vision deterioration.
Soft contact lenses for myopia control are also available — these do not correct astigmatism as well as OK lenses and their studied effectiveness is generally slightly less — but are still an excellent options for many kids. Children with more aggressive progression may benefit from combined treatment with both contact lenses and atropine eye drops — recent published studies have shown synergistic myopic control effect when Ortho K treatment is combined with atropine therapy.