From: Prevalence of reduced visual acuity among school-aged children and adolescents in 6 districts of Changsha city: a population-based survey
Districts
prevalence
95% CI
Furong
59.9%
57.9–61.8%
Tianxin
62.3%
60.5–64.0%
Wangcheng
47.8%
46.8–48.8%
Kaifu
58.5%
58.0–58.9%
Yuhua
47.0%
46.7–47.4%
Yuelu
52.6%
52.3–52.9%