Nearsightedness, also called myopia, makes faraway objects look blurry. Most people correct it with glasses or daytime contact lenses. Orthokeratology (ortho-k) corrects your vision while you sleep instead.
Many parents look into ortho-k as part of myopia control for their kids, and some adults choose it for convenience. Like any vision correction option, it comes with trade-offs. The biggest pros of ortho-k are clear daytime vision without glasses or contacts and the potential to slow myopia in children, while the main cons are the nightly commitment and a higher upfront cost.
How Ortho-K Lenses Work
Ortho-k lenses are rigid contacts that gently flatten your cornea, the clear front surface of your eye, while you sleep. You take them out in the morning, and your cornea holds that new shape long enough for you to see clearly through the day. The effect is temporary, so you put them back in each night.
These lenses are firmer than the soft contacts most people know. Each pair is custom-made from a detailed map of your eye’s surface, which is why an ortho-k fitting takes more time than a standard one.
The Pros of Ortho-K
Ortho-k has several benefits to weigh, whether you’re considering it for your child or for yourself.
Clear Daytime Vision Without Glasses or Contacts
Once you remove the lenses in the morning, you can go about your day with nothing on or in your eyes. That’s handy for kids who play sports or swim, since they won’t have glasses to knock loose during a game.
Adults who find daytime contacts uncomfortable may appreciate it too. Wearing lenses only at night can help if your eyes tend to feel dry by mid-afternoon.
Ortho-K Can Slow Myopia in Kids
A child’s nearsightedness tends to get worse as their eyes grow longer. Studies suggest ortho-k may slow that progression, and the effect could be stronger when kids start between ages 6 and 8.
Severe nearsightedness can raise the risk of eye conditions like retinal detachment later in life, so slowing myopia now may help protect your child’s eye health.
Kids also have fewer long-term options. No lasers are approved for LASIK in anyone under 18, and prescriptions often keep changing into the early 20s. Ortho-k gives younger patients a way to manage their vision in the meantime.
Ortho-K Is Non-Surgical & Reversible
If you’re not ready for laser eye surgery or would rather avoid it, ask your optometrist about ortho-k. And if you ever stop wearing the lenses, your cornea gradually returns to its original shape.
The Cons of Ortho-K
Before you commit, it helps to know what ortho-k asks of you.
Ortho-K Requires Nightly Wear
The reshaping effect only lasts about a day. If you skip a night or 2, your vision may get blurry again as your cornea returns to its natural shape.
For kids, parents usually need to help with the routine, especially in the first few months. Ortho-k tends to work well for families who can make lens time a regular part of bedtime.
Ortho-K Costs More Upfront
Each pair of lenses is designed specifically for your eyes, so the upfront cost runs higher than standard contacts. The fitting also involves more appointments. Ask your optometrist what’s included and check your insurance coverage before you start.
Adjusting to Ortho-K Lenses
Like any new contacts, ortho-k lenses take some getting used to. They may feel strange for the first few nights, and mild discomfort is common early on. Your vision can take anywhere from a few days to 2 weeks to settle, so you might still need your glasses for part of the day during that time.
What Age Is Right for Ortho-K?
Ortho-k can work for kids and adults, though the goals often differ. Myopia usually first appears in school-age kids and progresses until about age 20, so childhood is when ortho-k can do the most for myopia control. Regular children’s eye exams help your optometrist notice prescription changes early.
Most adults who wear ortho-k want clear daytime vision without glasses or contacts. Your optometrist will look at a few things to see if ortho-k suits you:
- Your prescription strength
- The shape and health of your cornea
- How dry your eyes tend to feel
- Your sleep schedule and daily habits
What to Expect at an Ortho-K Fitting
Your fitting starts with corneal topography, a painless scan that maps the curves of your eye’s surface. Your optometrist uses that map to design your lenses.
Plan on a few follow-up visits over the first several weeks. These give your optometrist a chance to see how your cornea responds and adjust the fit if needed.
Keeping It Safe
Lens hygiene matters with any contact lens wear, and ortho-k is no different. Build these habits into your nightly routine:
- Wash and dry your hands before you handle your lenses
- Clean and store your lenses with the solution your optometrist recommends
- Keep tap water away from your lenses and case
- Replace your lens case regularly
- Take your lenses out and call your optometrist if your eye turns red or painful
Is Ortho-K Right for You or Your Child?
For many families, ortho-k comes down to whether your child can stick with nightly wear during the years their myopia changes fastest.
At Total Vision Tierrasanta, our optometrists fit ortho-k lenses for kids and adults and can track how your child’s eyes change over time. Book an appointment and we’ll help you decide whether ortho-k fits your eyes and your routine.
