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What Are Ortho-K Lenses?

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A person stares at a contact lens balanced on their index finger.

If you’re tired of reaching for glasses in the morning or struggling with contact lenses all day, ortho-k lenses offer an exciting alternative. These specially designed contact lenses gently reshape your cornea overnight to provide clear vision during the day. That’s right—no glasses, no contact lenses, just crisp and clear vision from morning until night.

This innovative option isn’t just convenient; it could also be a game-changer for managing myopia in children. The choices you make now will have huge impacts on your child’s future vision. It all starts here.

Reshaping Vision While You Sleep 

Ortho-k, short for orthokeratology, offers a unique solution to address refractive errors like myopia (nearsightedness). Traditional contact lenses sit on the eye and change how light rays focus on the retina. Unlike other lenses, ortho-k lenses are worn at night while you sleep. Their rigid design gently reshapes the surface of your cornea, altering how light enters your eye and correcting vision problems.  

When you wake and remove the lenses in the morning, the cornea holds its new shape, allowing for clear vision throughout the day. However, this effect isn’t permanent. By bedtime, the cornea gradually returns to its original shape, which is why ortho-k lenses need to be worn nightly to maintain the results. 

While this might sound complex, the process itself is straightforward and comfortable. Ortho-k technology provides a nonsurgical option for vision correction that’s suitable for both children and adults seeking an alternative to traditional glasses or daytime contact lenses.

Why Choose Ortho-K Lenses? 

Ortho-k lenses provide several key advantages over other methods of vision correction, from convenience to long-term benefits.

Your glasses may be stylish, but they can still get in the way for some people. With ortho-k lenses, there’s no need to worry about smudges on your glasses or losing a contact lens midday. You’ll enjoy the freedom of living your daily life without the limitations of traditional lenses. 

Whether you’re an athlete, a busy parent, or a professional on the go, ortho-k gives you freedom and flexibility. Activities like swimming, running, and traveling become easier when you can ditch your glasses and lenses during the day. 

But the true standout benefit is how ortho-k lenses address myopia in children. 

How Ortho-K Helps With Myopia Control 

Myopia, or nearsightedness, often develops during childhood as the eye elongates more than normal or the cornea becomes too curved. This growth increases the risk of future eye problems, including retinal damage, cataracts, and glaucoma. Common symptoms of myopia in children include:

  • Blurry vision when looking at distant objects
  • Headaches
  • Frequent squinting
  • Eye strain 

We can’t reverse myopia’s changes, but when treated early, there are ways to slow this progression. Ortho-k lenses have become a popular option. By gently reshaping the cornea, these lenses reduce the eye’s elongation, which can slow myopia progression by up to 50%

For parents concerned about their child’s vision, combining ortho-k lenses with other treatments, like atropine eye drops, can offer significant long-term benefits. Slowing myopia early minimizes future complications, giving children the chance to protect their vision as they grow.

A parent supervises their child as they put in their ortho-k contact lenses.

Is Ortho-K Safe?

Orthokeratology has evolved significantly over the past 60 years, with advancements in lens materials, design, and patient education helping today’s lenses stay safe and effective. Early concerns about risks like bacterial infections have been addressed through better hygiene protocols and improved manufacturing.  

Complications from ortho-k lenses are now comparable to those of traditional contact lenses. That said, proper care and handling remain critical. Follow the care guidelines provided by your optometrist so you can minimize risks. This way, you or your child can enjoy ortho-k as a safe, reliable option for vision correction. 

How to Start Your Ortho-K Journey 

Getting fitted for ortho-k lenses is a straightforward process that starts with a visit to your optometrist and a contact lens fitting. During your appointment, your doctor will:

  • Assess your overall eye health and determine the extent of your refractive error. 
  • Use corneal topography to map the surface of your cornea so they can custom-tailor your lenses to your unique eye shape. 
  • Provide instructions on how to wear, clean, and care for your ortho-k lenses. 

You may receive a temporary pair of lenses to test the fit and see how ortho-k works for you. While it can take a little getting used to, most people find the sensation of wearing ortho-k lenses fades quickly with regular use

Caring for Your Ortho-K Lenses 

Proper lens care is essential for maintaining eye health and keeping your ortho-k lenses effective. Here are some tips to keep them clean and safe:

  • Wash your hands thoroughly before handling your lenses. 
  • Clean your lenses daily with the optometrist-recommended solution. 
  • Replace your lens case regularly to avoid contamination. 
  • Follow replacement schedules carefully to avoid complications caused by aging lenses. 

Your optometrist will also provide specific guidelines tailored to your lens type, so be sure to follow their advice closely. By adopting these simple habits, you can enjoy clear vision for years to come. 

See the World Clearly with Ortho-K 

Life is all about perspective, and ortho-k lenses offer a fresh one—with clear vision, improved convenience, and life-changing possibilities for myopia control. Whether you want to enjoy life without glasses or give your child the best chance at preserving their vision, orthokeratology is a reliable, effective solution worth exploring. 

If you’re ready to take the first step, there’s no better time than now to book an appointment with Forest City Optometry’s experienced team. Visit us today to see how ortho-k lenses can transform your vision!

Written by
Dr. Wes McCann

Dr. McCann earned his two Bachelor of Science degrees (both with honours) at Western University in London, Ontario, before going on to earn his Bachelor of Vision Science, accelerated MBA, and Doctor of Optometry degrees at the Nova Southeastern University (NSU) of Optometry in Fort Lauderdale, Florida.

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Dr. Wes McCann
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