ArticleBMJ open2024
Association between myopia and sleep duration among primary school students in minority regions of Southwest China: a school-based cross-sectional research.
Article in BMJ open, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.
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Who cites it
5 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Association of physical activity, sedentary behaviour, sleep and myopia in children and adolescents: a systematic review and dose-response meta-analysis.BMC public health · 2025Pooled it
- A quasi-experimental design study on myopia preventive intervention based on the MMHEM health promotion model.BMC public health · 2026Article
- Protecting children's vision is a systematic project-a cross-sectional survey on myopia among preschool children in Shantou, China.Journal of translational medicine · 2025Article
- Exploring the link between BMI and physical fitness in Sichuan's ethnic minority primary school students: insights from quantile regression analysis.BMC pediatrics · 2025Article
- Exploring the influences of myopia in primary and secondary school students in Xinjiang using propensity score matching.Frontiers in medicine · 2025Article
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Authors and funding
11 authors.
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Abstract
objectiveTo investigate the relationship between sleep duration and myopia among primary school students in minority regions of Southwest China.
methodsThe school-based, cross-sectional study was conducted from October 2020 to January 2021. All participants underwent a comprehensive ocular examination and completed a questionnaire on demographic characteristics, ophthalmological history and major environmental factors for myopia. Spherical equivalent (SE) and ocular biometric parameters were measured after cycloplegia, with myopia being defined as SE ≤-0.5 D (Diopter). Multivariate regression models were used to examine the association of sleep duration with myopia, SE and axial length (AL).
resultsA total of 857 students from grades 2 to 4 were included in the analysis, of which 63.6% were myopic and 62.0% belonged to ethnic minorities. Boys had a slightly higher prevalence of myopia compared with girls (66.7% vs 60.6%, p=0.06). Myopic students had longer AL, deeper anterior chamber depth and thinner central corneal thickness compared with non-myopic students (all p<0.05). There was no significant association between sleep duration and myopia in both boys and girls (p=0.319 and 0.186, respectively). Moreover, girls with a sleep duration of 8-9 hour/day had higher SE and shorter AL compared with those with less than 8 hour/day of sleep (β=0.41 and -0.32, respectively, all p<0.05).
conclusionThis cross-sectional study did not find a significant association between sleep duration and myopia. However, it suggests that 8-9 hours of sleep per day may have a protective effect on SE progression and AL elongation in girls. Future studies with objectively measured sleep duration are needed to validate the findings.
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