ArticleInternational journal of general medicine2021
Prevalence of Refractive Error and Visual Acuity Among School Children in the Plateau Region of Qinghai, China.
Article in International journal of general medicine, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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10 citing papers in PubMed, 13 citations in OpenAlex.
- Characterisation and risk factors of astigmatism among children and adolescents aged 3-20 years in Northwestern China.Journal of global health · 2026Article
- Interaction effect of age and axial length-to-corneal radius ratio on myopia in children and adolescents: a cross-sectional study in China.Journal of translational medicine · 2025Article
- Prevalence and risk factors of myopia among school-aged children and adolescents in Xi'an, China.International journal of ophthalmology · 2025Article
- Article
- Influence of high altitude on choroid thickness, retinal thickness, and myopia: A cross-sectional study comparing adolescents in Shanghai and Tibet.Indian journal of ophthalmology · 2024Article
- Is refractive error a factor affecting scoliosis?PloS one · 2024Article
- Refractive and corneal astigmatism in Chinese 4-15 years old children: prevalence and risk factors.BMC ophthalmology · 2023Article
- Association of Axial Length and Refraction with Near Horizontal Heterophoria in Chinese Children: An Observational Cross-Sectional Study.Journal of ophthalmology · 2022Article
- Myopia progression and associated factors of refractive status in children and adolescents in Tibet and Chongqing during the COVID-19 pandemic.Frontiers in public health · 2022Article
- Progression of Vision in Chinese School-Aged Children Before and After COVID-19.International journal of public health · 2022Article
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Authors and funding
11 authors at 1 institution in 1 country.
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Abstract
purposeThis study aimed to investigate the prevalence of refractive error and visual acuity among school children in the plateau region of Qinghai, China.
methodsThe school-based, cross-sectional study was performed in Menyuan, Qinghai, China. Three kindergartens and three primary schools were randomly enrolled from both rural areas and county towns. The participants had undergone ophthalmic examinations of the intraocular pressure (IOP), uncorrected visual acuity (UCVA), presenting visual acuity (PVA) and best corrected visual acuity (BCVA), cycloplegic refraction, and axial length (AL). Regression analysis was applied to investigate the potential risk factors affecting the prevalence of various refractive errors.
resultsA total of 3770 children were invited to participate, and 3524 (93.5%) had undergone examination. Among the 3524 children (51.8% boys) with a mean age of 8.3±2.3 years, 1049 (29.8%) had myopia, 30 (0.9%) had high myopia, 1692 (48.0%) had mild hyperopia, 152 (4.3%) had medium to marked hyperopia and 925 (26.2%) had astigmatism. The mean SER was -0.16±1.86 D and decreased with age. The AL increased with age from 21.80±0.59 mm at 4-years to 23.53±1.05 mm at 12-years. The myopia prevalence increased with age from 2.0% at 4 years to 62.8% at 12-years. Myopia was associated with increasing age, county town habitation and girls. Among the 723 participants with PVA 20/40 or worse in one eye, 564 (78.0%) were due to uncorrected refractive error, and 83 (22.0%) were due to undercorrected refractive error. Among the 1049 children with myopia, only 254 wore glasses, and 151 children with PVA had a worse BCVA and did not have accurate spectacles.
conclusionThe prevalence of myopia is very high among school children in Menyuan. Only 24.2% of myopic children wore glasses, and 59.4% of children did not have accurate spectacles. Strategies to improve access to eye care and affordable glasses are needed.
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