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How Does Orthokeratology Work?

Orthokeratology are rigid gas permeable contact lenses that are worn overnight and removed upon awakening. These lenses gently reshape the eye overnight so glasses or contact lenses are not required during the day. 

These contact have a unique design that induce peripheral myopic defocus and provides a stimulus for decreased elongation of the eyes and slows myopia progression. Current evidence suggests that Ortho-K reduces myopia progression and axial length elongation by slightly less than 50%. In a five-year study, myopia progression was reduced by half in the first year of treatment as compared to children wearing single vision glasses. 

One of the common concerns with contact lens wear is the risk of eye infections. There has been extensive studies performed to assess safety of orthokeratology. In retrospective studies, it was noted that the risk of microbial keratitis in Ortho-K was similar to that soft contact lenses. Periodic follow-ups, proper wear and care, and disinfection protocol should be established to prevent eye infection and ensure appropriate treatment.

If you are interested in learning more about your candidacy for orthokeratology, call us today at 905-363-1140.