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Orthokeratology (Ortho-K, also known under branded names like "dream lens" "Dreim Lens" and "dream vision") is the use of rigid gas-permeable contact lenses, normally worn only at night, to improve vision through the reshaping of the cornea. This method can be used as an alternative to eyeglasses, refractive surgery, or for those who prefer not to wear contact lenses during the day (for example, because lenses may become dislodged during sport.。 |
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