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Orthokeratology, also known as Corneal Refractive Therapy

Tired of wearing contact lenses during the day? We can change that.

Worried your contact lens will pop out while you are playing sports? Do you swim frequently and want to be able to see clearly while in the water? Orthokeratology (Ortho-k) also known as Corneal Refractive Therapy (CRT) is a great alternative for swimmers, athletes, and patients who are around dust, pollen, or other eye irritants, or for patients who are considering LASIK but don’t want to commit to surgery.

As an added benefit, OrthoK lenses have proven effective in slowing the yearly change in a nearsighted, or myopic, child’s prescription.

What is OrthoK / CRT?

OrthoK lenses are specially designed gas permeable contact lenses that you wear overnight. While you sleep the lenses gently reshape the cornea, the front surface of the eye. This reshaping allows you to see clearly during the day without any correction whatsoever. This correction lasts throughout the day but is reversible if you stop wearing the lenses every night.

How Paragon CRT® Contact Lenses Work from CooperCompanies on Vimeo.

Can I, or my child, wear CRT lenses?

CRT works best in people who have myopia, or nearsightedness. If you are nearsighted and interested in these lenses, schedule an exam today so we can evaluate your eyes to determine if you are a good candidate for CRT. To learn more, and see if CRT lenses are right for you, schedule an appointment today at 225-767-3937.Paragon CRT logo

Here is how to put on and take off your CRT lenses:

Care of OrthoK lenses using Hydrogen Peroxide Solution

  • Take your contact lenses off and place underneath the shield on either side of the lens case.
  • Fill the case with solution till you reach the line marked on the case wall. Never pour the red cap solution into your eyes.
  • Leave contacts in solution for at least 6 hours to neutralize the solution and deep clean the contact lenses. Occasionally the solution in the case will bubble over – this is okay and is frequently due to environmental changes like humidity.
  • After at least 6 hours, you can remove your lenses from the case and put them on.
  • Make sure to discard your case once the bottle of solution it came with runs out. The case is only good for as long as the bottle of solution it came with
  • If you still have questions, you can watch this video.

If you have any redness, pain, or discharge, or blurry vision, please call us at 225-767-3937. We take the health and safety of your eyes very seriously at Achord Eye Clinic.