Orthokeratology is designed to provide excellent vision and oxygen transmission to the eye. The design of the Ortho-K lens is believed to provide a reduction in the degree of a treated eye. This change is completely reversible and temporary in nature.
Ortho-K has also shown up to 77% effectiveness in controlling myopia progression.
This service is only available at our Oasis Terraces branch located at 681 Punggol Drive #01-18 Singapore 820681.
Call 6244 4420 to book a FREE Ortho-K pre-fitting assessment now!
Orthokeratology (Ortho-K) contact lenses are designed to gently reshape the central surface of the cornea systematically, similar to the effect of lasers in correcting Myopia. However, unlike laser surgery, the effect of ortho-k treatment is temporary and reversible.
While Ortho-K can help most individuals (including those with certain types and amounts of astigmatism and moderately high myopia) improve their vision, other factors that may affect candidate’s vision include individual cornea rigidity and shape factors as well as an ability to wear contact lenses. A thorough consultation and examination using advanced computerised diagnostic instrumentation can easily determine if Ortho-K is right for an individual.
This is a non-surgical, safe and painless procedure. Surprisingly, children are able to handle this special contact lenses much better than what adults thought they could be. In most cases, the children can independently manage everything by themselves within the first month!
While Ortho-K can be performed on practically anyone with healthy eyes, it might decrease the success rate for people with very high prescription, pupils size that are larger than normal (>6mm in normal light) and those having irregular cornea astigmatism or any cornea disorder such as keratoconus.
Ortho-K is believed to be safe when appropriately fitted and managed properly by experience optometrist. Many people have been able to eliminate their dependence upon their glasses and standard contact lenses with no adverse effects. Unlike surgical procedures like radial keratotomy (RK), photorefractive keratectomy (PRK), laser assisted in-situ keratomileusis (LASIK), and laser assisted subepithelial keratectomy (LASEK), the cornea tissue is not incised or vaporized by a laser. As with all contact lenses, proper lens care and handling must be performed to maintain eye health. The state-of-the-art, high permeability Gas Permeable materials now available provide adequate amounts of oxygen to the tissues of the eye.
It is not permanent.
After maximum result is achieved, Ortho-K lenses are worn to stablise and maintain the cornea shape. Failure to wear the Ortho-K lenses on an ongoing basis will result in a return to the pre-existing prescription. The wearing schedule will be determine by your optometrist.
Risks can be eliminated or reduced significantly with proper care and regular follow-up with our optometrists. The parents/guardian monitoring their child/ward using Ortho-K is extremely important.
The complications of wearing contact lenses include cornea in-growth of blood vessels, ulcers, and abrasions. The risks associated with wearing contact lenses overnight are higher than wearing contact lenses only while awake. Contact lenses cannot become lost behind the eye and it is rare for Ortho-K lenses to become decentered from the cornea.
It generally requires four to seven consecutive nights of wearing the Ortho-K lenses to achieve the desired result. It may take longer for those with higher degrees of myopia.
Overnight wearing of the Ortho-K lenses is surprisingly comfortable. Most patients are unaware of their presence within a very short time after insertion, because the lenses are made in large diameters and worn during sleep. The normal adaptation process is very short.
Once the desired correction is obtained, regular glasses/contact lenses are usually not needed. Glasses may be needed for part-time usage, depending on the cornea condition.
During the initial treatment period, if corrected vision does not last a full day, the patient might need temporary glasses/contact lenses to maintain normal distance vision.
The first follow-up visit will be on the next day after the Ortho-K lenses have been prescribed. This is followed by a one week, two weeks, one month and three-month regular follow-up visits.
During the follow-up visit, our optometrist will assess the condition of your corneas and rule out contact lenses related complications. This is also a chance for us to monitor the patient myopia progression, if any, and make changes as early as possible.
Most people will need to wear the Ortho-K lenses six to seven consecutive nights in order to enjoy good, unaided vision during the entire day. Patients with lesser degrees of myopia may find that wearing them every other night is satisfactory. However, this will be determined on an individual basis by the eye care practitioner.
Rapid visual improvement normally occurs in the first few days. Stablisation then follows over the next few weeks and months. Once the wearer’s eyes are stablised, improved eyesight is maintained by wearing Ortho-K lenses as recommended to maintain vision at the desired level.
The wearer’s eyes will return to their pre-treatment myopia after about two weeks, depending on how long Ortho-K lenses have been worn, this process may be as long as 30 – 90 days. In order to provide good vision during this transitional period, patients are refitted with gas permeable lenses or disposable soft contact lenses while the corneas recover their pre-treatment shape.
Unlike laser surgery that cannot be reversed, corneas can usually be remodeled to accommodate the change in prescription by changing the design of the maintenance lenses to correct for near vision using a technique called monovision.
Ortho-K fitting requires a trained optometrist and it is a programme that might need a few consultations. The actual cost will depend on the complexity of the case, depending on length of treatment and number of Ortho-K lenses needed. The optometrist will be able to provide a better estimate for each patient after a thorough pre-fitting assessment.
Contact us if you have further inquiries