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 Sumner Vision, we offer an advanced corneal reshaping technique known as Precision Ortho-k, or POK. This non-surgical technique can produce changes to the way your cornea refracts light and help you to see 20/20 without glasses or contact lenses.
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.
POK 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 POK lenses and your corneas will assume their previous shape once again. Talk with Dr. Sumner to see whether POK is right for you.