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Fig. 2 | BMC Ophthalmology

Fig. 2

From: Different patterns of myopia prevalence and progression between internal migrant and local resident school children in Shanghai, China: a 2-year cohort study

Fig. 2

Prevalence of myopia and hours spent per week between migrant and local children at baseline. Prevalence of myopia (a) and hours spent on homework (b) and outdoor activities (c) per week in 752 migrant children and 926 resident children of grade 1 to 4 at Year 2010 were shown in Fig. 2. Solid line with square stands for migrant children; dashed line with circle stands for resident children

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