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양순원(Soonwon Yang),나경선(Kyung-Sun Na),김현승(Hyun Seung Kim) 대한검안학회 2015 Annals of optometry and contact lens Vol.14 No.2
Orthokeratology have been effective and safe alternative method as temporary, predictable, and reversible correction of myopia. The improvement of uncorrected visual acuity is attained by flattening of the central corneal curvature using a reverse-geometry lens. With the development of a gas-permeable lens material, application of lenses during sleep became possible. Changes in uncorrected visual acuity, refractive error and corneal curvature have been firmly established for orthokeratology by many investigators. The effect of stabilization of myopia acceleration by orthokeratology lens is unclear. Recently, the effect of stabilization of myopia acceleration by orthokeratology lens is reported by clinical trials. The mechanism by which orthokeratology lenses prevent myopia is not clear, however, possible hypothesis is reported including induction of peripheral myopic defocus, or spherical aberration to reduce accomodation. Further longer-term studies are needed to determine whether there continue to be accrual of the effect of orthokeratology lens wear on myopia progression and to clarify the factors in myopic development, such as genetics and environment, in the progression of myopia in children.
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