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Fig. 1 | BMC Ophthalmology

Fig. 1

From: The increasing prevalence of myopia in junior high school students in the Haidian District of Beijing, China: a 10-year population-based survey

Fig. 1

Prevalence of non-myopia and myopia in the whole group. a The incidence of non-myopia, low myopia, moderate myopia, and high myopia are presented. The total myopia group was defined using a refractive error > −0.50 diopters and included students with low myopia, moderate myopia, and high myopia. Overall, the prevalence of myopia increased significantly. b The total myopia group was defined using a refractive error > −3.0 diopters and included the moderate myopia and high myopia groups

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BMC Ophthalmology

ISSN: 1471-2415

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