Ortho-k

Ortho-k is most commonly used to treat nearsightedness, also called myopia. When you are nearsighted, distant objects appear blurry because your eye focuses light in front of the retina instead of directly on it. Ortho-k lenses flatten the center of your cornea slightly, which moves the focal point back to where it should be.

We typically achieve the best results with low to moderate myopia, up to about -6.00 diopters. Higher prescriptions may be correctable in some cases, but the results can be less predictable and may require more careful monitoring.

Astigmatism occurs when your cornea has an irregular shape, more like a football than a basketball. This causes light to focus at multiple points, creating blurred or distorted vision at all distances. Ortho-k lenses can correct mild to moderate astigmatism, commonly up to about -1.75 diopters, though selected cases with higher amounts may be considered.

• Custom lens designs account for the unique irregular shape of your cornea
• Treatment may take slightly longer to achieve stable results with astigmatism
• Higher levels of astigmatism may not respond as predictably to ortho-k

One of the most valuable uses of ortho-k is slowing down the progression of myopia in children. Current evidence suggests that ortho-k can reduce the rate at which nearsightedness worsens, with many studies showing reductions of about 30 to 60 percent compared to wearing regular glasses or contacts, though individual results vary based on age, baseline myopia, and wear consistency. Slowing myopia progression is important because high myopia in adulthood increases the risk of serious eye problems like retinal detachment and glaucoma.

Myopia control with ortho-k slows but does not stop progression, and success depends on long-term consistent use and monitoring of both refraction and axial length. Some children may experience catch-up progression if treatment is discontinued. We often discuss combining ortho-k with other strategies for optimal results. Children as young as six or seven can often successfully wear ortho-k lenses if they can follow instructions for insertion, removal, and care. Our eye doctor will evaluate whether your child is mature enough and motivated to handle the lenses responsibly.

• Other myopia control options include low-dose atropine eye drops and multifocal soft contact lenses
• Myopia-control spectacle lenses are also available in many cases
• Lifestyle factors like increased outdoor time and managing near-work habits may help
• Combination therapy may be considered based on progression rates and individual needs

Ortho-k is not typically used to correct farsightedness, also called hyperopia, because the corneal changes required are more complex and less predictable. While some research exists on hyperopic ortho-k, it is not a standard treatment in most practices currently.

Presbyopia, the age-related loss of near focusing ability that usually begins in your forties, is also not corrected by standard ortho-k. Some multifocal ortho-k designs are available but less common, with more variable outcomes. These may be considered only in specific cases after discussing realistic expectations with our eye doctor.

For ortho-k to work effectively, you need to wear your lenses every night while you sleep during the initial adaptation period. Most people need at least six to eight hours of wear to maintain the corneal reshaping. Consistent nightly wear is the key to stable, clear daytime vision.

• Insert your lenses before bed as part of your evening routine
• Remove them when you wake up in the morning
• Wear them nightly at first for best results
• After stabilization, some patients can maintain their correction with less frequent wear as directed by our eye doctor
• Do not nap in your lenses or extend wear beyond what we prescribe unless specifically instructed

Many patients notice significant vision improvement within the first few days of wearing ortho-k lenses. However, it can take one to two weeks to reach your target vision, and full stabilization may take up to a month. The timeline depends on your prescription strength and how your cornea responds to treatment.

Your vision may fluctuate slightly during the adaptation period, with some days clearer than others. This is normal as your cornea adjusts to the new shape. Once you reach stability, your vision should remain consistently clear throughout each day.

After removing your lenses in the morning, you should have clear vision for most or all of your waking hours. Some patients describe their vision as crisp and sharp, while others may notice slight fluctuations, especially in the first few weeks. You might experience better vision early in the day with a gradual, minor decrease by evening.

Visual quality is usually excellent, though some people notice mild glare or halos around lights at night, particularly in the early stages of treatment. These effects typically improve as your eyes adapt, but we will discuss realistic expectations during your evaluation.

Skipping even one night can cause your cornea to start returning to its original shape, leading to blurred vision the next day. If you miss a night, you may need to wear glasses or daytime contact lenses temporarily. Consistent wear maintains the corneal reshaping and keeps your vision stable.

If you do skip a night occasionally, simply resume wearing your ortho-k lenses the following night. Your vision should improve again within a day or two. However, frequent or prolonged skipping will prevent successful treatment and may require restarting the adaptation process.

Yes, ortho-k is considered safe for children when they are mature enough to handle the lenses responsibly and follow proper hygiene practices. In fact, children often adapt more quickly than adults, and the myopia control benefits make ortho-k particularly valuable for young patients. We carefully evaluate each child's readiness and provide thorough training for both the child and parents to ensure success and safety.

Mild dry eye may not prevent you from wearing ortho-k lenses, especially since you wear them while sleeping when your eyes are closed. However, moderate to severe dry eye can increase discomfort and the risk of complications. We will evaluate your tear film during your initial exam and may recommend treatments to improve your dry eye before starting ortho-k, or we may suggest alternative vision correction methods.

Both ortho-k and LASIK correct your vision by reshaping the cornea, but ortho-k is completely non-surgical and reversible while LASIK permanently alters your cornea with a laser. Ortho-k requires nightly lens wear and ongoing costs, whereas LASIK is a one-time procedure with upfront costs. Ortho-k is often preferred for children, people whose prescriptions are still changing, or anyone who wants a reversible option without surgery.

If you stop wearing your ortho-k lenses and have not had complications, your cornea will gradually return to its original shape over a period of days to weeks. Your vision will revert to what it was before treatment, and you will need to go back to wearing glasses or regular contact lenses. The reshaping effect is not permanent, which makes ortho-k a flexible option if your needs or preferences change in the future.

Most medical insurance plans do not cover ortho-k because it is considered an elective vision correction procedure, similar to LASIK. However, some vision insurance plans or flexible spending accounts may offer partial reimbursement or discounts. We recommend checking with your insurance provider about your specific benefits, and our staff can provide documentation of the costs and procedure codes to help you explore coverage options.