Summary
This large cross-sectional study of over 30,000 Chinese primary school students found that sleeping less than 8 hours per night was strongly associated with greater myopia severity, with risk increasing across school grades. These findings suggest that lighting and schedule design in schools and homes should prioritize conditions that support adequate sleep duration to help mitigate myopia progression in children.
Key Findings
- Boys sleeping <8h/d had 12.29x higher odds (95% CI: 11.28–13.39) of a one-grade increase in myopia severity compared to those sleeping ≥8h/d.
- Girls sleeping <8h/d had 12.71x higher odds (95% CI: 11.61–13.91) of a one-grade increase in myopia severity.
- Risk of myopia grade progression with <8h sleep increased with school grade: Grade 1 OR=5.20, Grade 2 OR=8.78, Grade 3 OR=11.83, Grade 4 OR=13.57, Grade 5 OR=16.28.
- All associations were statistically significant (p<0.001), suggesting a cumulative relationship between sleep deprivation and myopia worsening over the school years.
Categories
Eye Health & Vision: Study directly examines myopia severity in relation to sleep duration across grades 1–5.
Sleep & Circadian Health: Sleep duration (<8h vs. ≥8h) is the primary independent variable linked to myopia progression risk.
Student Learning: Study population is Chinese primary school students, with findings relevant to school health and lighting/schedule design.
Author(s)
L Yin, P Liu, S Li, S Wei, J Sun, F Ren, Y Song, H Xie
Publication Year
2024
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