Frontiers in public health · 2022
Associations between reading and writing postures and myopia among school students in Ningbo, China.
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Jiang Danjie, Shi Bijun, Gao Hua, Guo Yanbo, Zhou Shaoying, Zhang Yan
Аннотация
BACKGROUND: We conducted this study to investigate the prevalence of myopia among school students in Ningbo and to explore the associations between reading and writing postures and myopia.
METHODS: A population-based and cross-sectional study was conducted, and 3,256 school students aged 8-19 years were recruited. Each enrolled subject was assessed for uncorrected distance visual acuity (UDVA) using a standard logarithmic visual acuity E-chart and a non-cycloplegic autorefraction examination. Self-administered questionnaires were used to investigate myopia-related reading and writing postures and behavioral habits among school students.
RESULTS: The prevalence of myopia among primary school, middle school, and high school students was 61.49, 81.43, and 89.72%, respectively. Regarding the associations between reading and writing postures and myopia, we identified that a reading distance >33 cm is a protective factor for myopia in female students [odds ratio (OR) = 0.31, 95% confidence interval (CI) = 0.15-0.64], in both primary school (OR = 0.55, 95% CI = 0.30-0.99) and middle school (OR = 0.37, 95% CI = 0.15-0.90).
CONCLUSIONS: A reading distance >33 cm can be used as an additional measure to prevent and control myopia. Proper postural measures for reading and writing may have educational and public health benefits.
METHODS: A population-based and cross-sectional study was conducted, and 3,256 school students aged 8-19 years were recruited. Each enrolled subject was assessed for uncorrected distance visual acuity (UDVA) using a standard logarithmic visual acuity E-chart and a non-cycloplegic autorefraction examination. Self-administered questionnaires were used to investigate myopia-related reading and writing postures and behavioral habits among school students.
RESULTS: The prevalence of myopia among primary school, middle school, and high school students was 61.49, 81.43, and 89.72%, respectively. Regarding the associations between reading and writing postures and myopia, we identified that a reading distance >33 cm is a protective factor for myopia in female students [odds ratio (OR) = 0.31, 95% confidence interval (CI) = 0.15-0.64], in both primary school (OR = 0.55, 95% CI = 0.30-0.99) and middle school (OR = 0.37, 95% CI = 0.15-0.90).
CONCLUSIONS: A reading distance >33 cm can be used as an additional measure to prevent and control myopia. Proper postural measures for reading and writing may have educational and public health benefits.