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Showing posts from February, 2018

What is Orthokeratology?

Orthokeratology is a nearsighted control program where a child sleeps with a pair of breathable contact lenses that gently reshapes their cornea.  During daytime, contact lenses are removed and the child will be able to see without their glasses.   A nearsighted patient would have light rays focused in front of their retina: When corrected with regular eyeglasses or contact lenses, the central rays of light will now be focused on the retina, however the rays of light on the side will focus behind the retina.  This would cause the brain to tell the eye to elongate so that they can put the focus back to the retina. This will just begin a cycle again wherein the central rays of light are not focused correctly on the retina. During orthokeratology, the new shape of the cornea alters how light rays enter the eye, thus preventing the elongation of the eyeball.  Orthokeratology does not remove or lessen the grade or prescription, but just controls it from getting higher and higher ea