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. 2021 Sep 16;14:5795–5805. doi: 10.2147/IJGM.S326046

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© 2021 Wu et al.

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Prevalence of high myopia, myopia, emmetropia, mild hyperopia and medium to marked hyperopia, stratified by age in the Qinghai children. Participants were classified according to SER into high myopia (SER≤−6.0D), myopia (SER≤−0.5 D), emmetropia (SER>−0.50 D and ≤+0.5 D), mild hyperopia (SER>+0.50 D and ≤+2.0 D), and medium to marked hyperopia (>+2.0 D).