| http://www.w3.org/ns/prov#value | - Myopia is a common ocular disorder especially in Asian countries such as Hong Kong, Singapore, Korea, Taiwan, and China.1???6 Orthokeratology (ortho-k) uses specially designed rigid contact lenses to temporarily reduce myopia.7???11 Recent reports have shown ortho-k to be effective in slowing the progression of myopia in children.10,12,13 The rate of axial elongation of the eyeball in children wea
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