Orthokeratology, or Ortho-K, is the science of changing the curvature of the cornea to alter the way light focuses on the retina at the back of the eye.
The cornea is a clear, dome-shaped structure that overlies the colored iris. Its tissue is most similar to clear, wet skin. Like skin, the cornea is pliable. Because the cornea has a curvature that bends light towards the back of the eye, it is responsible for most of the eye’s corrective power, and contributes to various conditions such as nearsightedness (myopia), farsightedness (hyperopia), and the blur of astigmatism.
When you choose Ortho-K, a few key tests must be performed. The most important step is to determine the health of your eyes. Dr. El Hage will examine the retina, the cornea, and the overall structure of the eye. The other key procedure is the mapping of your cornea, or Corneal Topography. Just like the earth’s surface topography shows hills, plains, and valleys, the topography of the eye shows the shape and features of the cornea. The information from your corneal mapping, along with the diameter of your cornea and the prescription needed to correct your vision, is used to design the reverse geometry contact lens (or corneal molds) needed to create the Ortho-K effect.
We provide instructions on how to insert, remove, and take care of your Ortho-K retainer lenses. The fit of your retainers will be evaluated, and you will be scheduled to be seen after your first night wearing these lenses. After the first day, Dr. El Hage will re-evaluate the fit and your newly corrected vision, and will perform another mapping of your cornea.
Orthokeratology can produce results in a surprisingly short period of time. Contact us today to learn more about how Orthokeratology can help you.