Orthokeratology, commonly known as Ortho-K, is a revolutionary non-surgical method to correct vision using specially designed gas-permeable contact lenses. These lenses are worn overnight to reshape the cornea temporarily, providing clear vision throughout the day without the need for glasses or daytime contact lenses.
This method is particularly beneficial for individuals with myopia (nearsightedness) and is gaining popularity due to its potential to slow down the progression of myopia in children and teenagers. In this article, we’ll explore how Ortho-K works, its benefits, potential risks, and what you should consider before opting for this vision correction method.
How Ortho-K Works
Ortho-K lenses work by gently reshaping the cornea while you sleep. The cornea, which is responsible for bending (refracting) light to focus on the retina, plays a key role in clear vision. In individuals with myopia, the cornea is slightly elongated, causing light to focus in front of the retina instead of directly on it. Ortho-K lenses apply slight pressure to the cornea, flattening it just enough to refocus light correctly onto the retina.
Once the desired shape is achieved, vision correction can last throughout the day, eliminating the need for corrective eyewear. However, the effects of Ortho-K are temporary, meaning that to maintain clear vision, the lenses must be worn every night or as prescribed by an optometrist.
Who Can Benefit from Ortho-K?
Ortho-K is primarily designed for individuals with mild to moderate myopia. However, it can also be used to correct conditions such as:
- Hyperopia (Farsightedness) – Although less common, Ortho-K can sometimes correct mild hyperopia.
- Astigmatism – Some specially designed Ortho-K lenses can reshape the cornea to correct astigmatism.
- Presbyopia – Multifocal Ortho-K lenses may provide relief for individuals with age-related farsightedness.
- Ortho-K is especially appealing to:
- Children and teenagers whose myopia is progressing rapidly.
- Athletes who find glasses or regular contact lenses inconvenient.
- Individuals who work in dusty or dry environments where wearing contact lenses may be uncomfortable.
- Those who are not suitable candidates for LASIK surgery.
Diamond Valley Optical offers advanced orthokeratology in Melbourne, helping you achieve clear vision without glasses or contact lenses.
Advantages of Ortho-K
- Non-Surgical Vision Correction – Unlike LASIK, Ortho-K does not involve surgery, making it a reversible and non-invasive option.
- Effective Myopia Control – Studies have shown that Ortho-K can slow down the progression of myopia in children, reducing the risk of high myopia later in life.
- Clear Vision Without Glasses or Daytime Contacts – Users experience clear vision throughout the day without relying on traditional eyewear.
- Ideal for Active Lifestyles – Great for athletes and individuals who engage in outdoor activities where glasses and contacts might be cumbersome.
- Reversible and Adjustable – If a user decides to stop wearing Ortho-K lenses, the cornea returns to its original shape, unlike the permanent changes made by LASIK.
Potential Risks and Side Effects
- While Ortho-K is generally safe, there are potential risks and side effects, including:
- Initial Discomfort – As with all contact lenses, users may experience discomfort during the first few days of wearing Ortho-K lenses.
- Risk of Eye Infections – Since the lenses are worn overnight, improper hygiene can increase the risk of infections like keratitis.
- Dry Eyes or Irritation – Some users may experience dry eyes or irritation, particularly if they have sensitive eyes.
- Temporary Vision Fluctuations – During the adaptation period, some users may notice slight vision fluctuations, but this usually stabilizes over time.
The Fitting Process and Maintenance
- Ortho-K lenses require a specialized fitting process carried out by an eye care professional. The process includes:
- Comprehensive Eye Exam – To determine eligibility and measure corneal curvature.
- Lens Fitting and Customization – Ortho-K lenses are custom-designed based on corneal topography measurements.
- Trial Period – Users typically undergo a trial period to assess comfort and effectiveness.
- Regular Follow-ups – Regular check-ups are necessary to ensure eye health and lens performance.
Maintenance Tips:
- Clean and store lenses properly using the prescribed solutions.
- Maintain good hand hygiene before handling lenses.
- Follow the recommended wear schedule to prevent complications.
- Replace lenses as advised by the optometrist to maintain effectiveness and eye health.
Comparing Ortho-K with Other Vision Correction Methods
Ortho-K vs. LASIK:
- Safety: Ortho-K is non-surgical and reversible, while LASIK is a permanent surgical procedure.
- Eligibility: Ortho-K is suitable for children and individuals with thin corneas, while LASIK is restricted to adults with stable prescriptions.
- Convenience: Ortho-K requires consistent nighttime wear, while LASIK provides permanent vision correction.
Ortho-K vs. Traditional Contact Lenses:
- Daily Wear: Ortho-K lenses are worn overnight, while regular contact lenses are worn during the day.
- Comfort: Ortho-K eliminates daytime discomfort, making it ideal for athletes and those with dry eyes.
- Eye Health: Regular contacts can sometimes cause dryness and irritation, while Ortho-K, if maintained properly, has lower long-term risks.
Frequently Asked Questions About Ortho-K
- How long does it take to see results?
Most users notice improved vision within a few days to a week, with full correction achieved within 2-4 weeks. - Can Ortho-K lenses correct high myopia?
Ortho-K is most effective for mild to moderate myopia, typically up to -6.00 diopters. Higher prescriptions may not achieve full correction. - Is Ortho-K covered by insurance?
Most vision insurance plans do not cover Ortho-K, as it is considered an elective procedure. However, some plans may provide partial coverage for myopia control in children. - Can adults use Ortho-K lenses?
Yes, adults can use Ortho-K, but it is more commonly prescribed for children due to its myopia control benefits. - What happens if I stop wearing Ortho-K lenses?
If you stop wearing Ortho-K lenses, your cornea will gradually return to its original shape, and your myopia will revert to its previous level.
Diamond Valley Optical offers advanced orthokeratology in Melbourne, helping you achieve clear vision without glasses or contact lenses. Visit our expert optometrists in Eltham, Watsonia, Doncaster, or Doreen for personalised care.
Conclusion
Ortho-K contact lenses provide a safe and effective alternative to traditional vision correction methods, offering clear daytime vision without glasses or daytime contacts. They are particularly valuable for children with progressive myopia and individuals seeking non-surgical solutions for vision correction.
While Ortho-K requires regular maintenance and commitment, its benefits, such as myopia control and lifestyle convenience, make it an appealing option. If you’re considering Ortho-K, consult with an eye care professional to determine if it’s the right fit for your vision needs.
For effective orthokeratology in Melbourne, trust Diamond Valley Optical to provide expert guidance and personalised vision correction solutions.
