how does orthokeratology and overnight vision correction work?

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My friend briefly mentioned that he uses ok lenses (orthokeratology lenses) and that it’s a part of his daily nighttime routine. Does this even work, and can it be used to fix my occasional micropsia?

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Anonymous 0 Comments

It does work, I have myopia (I believe it’s called near-sighted?) and astigmatism and have been using them for almost 2 years now. It doesn’t work for hypermetropia though (far sightedness?).

The way it works is the lens is shaped to flatten the surface of the eyeballs slightly. That way, it changes the way the light breaks inside the eye, and corrects the defect your eye had before. Wear them at night and the correction lasts about 36 for me, after that things start getting a halo and being blurry again.

AFAIK it doesn’t work for any other conditions than that, but it might be worth asking your doctor about it at your next checkup. Do make sure to check with your insurance that it’s covered. In my country it’s considered too experimental and therefore is not covered by insurance.

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