LASIK and PRK (photorefractive keratectomy) surgery are standard procedures that enable patients to see clearly without glasses or contact lenses. Not all patients, however, are good candidates for these procedures. For those patients, Jackman Optometry, offers an advanced corneal reshaping technique known as orthokeratology, or Ortho-K. This non-surgical technique changes the way your cornea refracts light.
To understand the benefits of refractive surgery, 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 the cornea causes incoming light rays to be bent, or refracted, so that the lens can focus them into a clear, sharp image. The focused image falls on the retina and 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 lenses are curved to "pre-refract" incoming light, compensating for your personal degree of corneal deformation. Laser surgery actually corrects the shape of the cornea itself, eliminating most visual errors that might otherwise call for corrective lenses.
Corneal Reshaping While You Sleep
While the thought of permanently correcting vision problems is a satisfying one, 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. In this painless procedure, Dr. Jackman will map the shape of your corneas precisely and then fabricate special contact lenses. Unlike standard contacts, you'll wear these at night. The lenses perform a subtle corneal reshaping as you sleep, meaning that you can take them out the next morning and enjoy clear vision.
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