Orthok lenses are worn overnight and treat nearsightedness while your child sleeps. in the morning, they remove the lenses for clear vision that lasts all day.
Many patients with vision problems heartily embrace the idea of enjoying vision correction without having to wear eyeglasses or contact lenses. Not all of these patients, however, are good candidates for PRK or Lasik surgery, the two standard surgeries used to alter the way the cornea of the eye refracts light. If that describes you, don't fret -- because here at Optikos Optometry, we offer an advanced corneal reshaping technique known as orthokeratology, or Ortho-K. This non-surgical technique can produce changes to the way your cornea refracts light.
To understand the benefits of Ortho-K, let us first consider how the cornea works. The cornea is a transparent, spherical bulge that sits over the lens of your eye. In addition to protecting the inner parts of the eye, the cornea also performs some lens-like tasks of its own. The shape of cornea causes incoming light rays to be refracted, or bent, in such a way that the lens can focus them into a clear, sharp image before they pass on to the retina and optic nerve. Ultimately, the optic nerve transmits the image to your brain.
Deformations in the shape of the cornea cause refraction to go wrong in various ways, producing the fuzzy images characteristic of nearsightedness, farsightedness, and astigmatism. Glasses and contact lens are curved to "pre-refract" incoming light to compensate for your personal degree of corneal deformation. Laser surgery actually corrects the shape of cornea itself, eliminating most of all of the visual errors that might otherwise call for corrective lenses.
Corneal Reshaping While You Sleep
While you might leap at the thought of permanently correcting vision problems, laser surgery isn't always the best eye care option. For instance, if you suffer from thin corneas, untreated cataracts, diabetes, certain autoimmune diseases, or a corneal disease called keratoconus, you should avoid laser eye surgery.
Some of our patients simply don't like the idea of any kind of surgery, or they want a reversible procedure. Orthokeratology may be an ideal choice for these individuals. Dr. Chang will map the shape of your corneas precisely and then fabricate special contact lenses. Unlike standard contacts, you'll wear these lenses at night. The lenses perform a subtle corneal reshaping as you sleep, meaning that you can take them out the next morning and enjoy perfect or near-perfect vision.
Ortho-K can help you see clearly for one or two days at a time, or possibly even longer. By wearing them regularly at night, you can maintain your clarity of vision for as long as you decide to continue using them. If you decide to use another form of vision correction, simply stop wearing the Ortho-K lenses and your corneas will assume their previous shape once again. Talk to our knowledgeable staff to see whether Ortho-K makes sense for you.
Ortho K contacts are a great way to fix vision issues such as shortsightedness (myopia) and other vision issues such as farsightedness (hyperopia), astigmatism and even presbyopia (farsightedness for the elderly).
What is Orthokeratology, also known as Ortho K?
It is a specially designed RGP contact lens (Rigid Gas Permeable) that you wear at night to reshape the curvature of the cornea while you’re sleeping.Then you take it off while you go about your day and put it on again when you go to sleep.
It is a non-surgical procedure and great alternative to glasses and LASIK. It has also been shown to slow down the deterioration of your vision.
Who Can Wear Ortho K Lenses?
We at Optikos recommend Ortho K for those with low to mild near-sightedness (-4 diopters or less). It is primarily used for the correction of myopia, hyperopia, and astigmatism and helps eliminate their dependence on single-vision glasses or daytime contact lenses. It is especially beneficial to children and teenagers whose vision is changing or who are too young for LASIK or other vision correction surgery.
Particularly appealing to those who are active in sports, we also recommend Ortho K for busy individuals whose work or daily activities constantly exposes them to dirty environments that can make wearing contact lenses highly uncomfortable.
Contact us at 213-386-0001 or [email protected] to see if you’re a good candidate for Ortho K.
How effective is Orthokeratology?
Our experience shows that our patients don’t need their glasses within the first day or two of wearing the lenses. Recent studies also show that orthokeratology proves to be highly effective in slowing down myopic progression in children by 36-56%. The American Academy of Ophthalmology suggests, in a 2018 report, that Ortho K has a greater effect as a treatment for myopia in children and adolescents when initiated at an earlier age (6-8 years old).
What are Ortho K lenses made of?
Ortho K lenses are specialized contact lenses made of FDA approved materials—rigid gas permeable (RGP)—which gently reshapes the cornea towards a spherical shape and can be worn while sleeping.
How long can Ortho K lenses last?
With proper care, ortho k contacts can last up to three years and should be replaced as your prescription changes.
Benefits of Using Ortho K
Most people including children and adults are good candidates for Ortho K. Here are some of the proven benefits of wearing orthokeratology lenses:
- non-surgical vision correction that is safe and reversible
- can prevent a child’s myopia from getting worse
- can free a person from glasses or daytime contact lenses
- can be worn while sleeping
- easy lens care, even for children
- can eliminate the need to replace eyeglasses yearly
- better, clearer vision than with eyeglasses
Optikos Optometry and Ortho K
A comprehensive eye exam will be necessary. During your consultation, the overall health of your eyes, vision and corneal shape will be assessed to determine if your eye are suitable.