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1
The study assessed visual acuity and refractive errors in 59,319 students from northeastern Sichuan, achieving a screening rate of 97.23%.
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2
Poor visual acuity and suspected myopia prevalence reached 90.81% and nearly 90% in senior high school students, indicating significant educational stage impact.
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3
Female students exhibited a higher prevalence of suspected myopia, with regional disparities showing Nanbu County at 80.49% and Langzhong City at 46.41%.
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4
Urban students had a significantly higher prevalence of myopia compared to township students, with ordinary schools showing greater rates than key schools.
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5
The findings provide essential data for developing targeted myopia prevention strategies in northeastern Sichuan, addressing regional disparities and risk factors.
