ArticleEye (London, England)2018
Myopia prevalence in Canadian school children: a pilot study.
Article in Eye (London, England), 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- Myopia and Near Work: A Systematic Review and Meta-Analysis.International journal of environmental research and public health · 2023Pooled it
- The impact of physical exercise with additional visual tasks on UDVA and accommodation sensitivity in children: the mediating role of kinetic visual acuity.Frontiers in public health · 2024Trial
- Incidence and Risk Factors of Refractive Error in Children in Spain: CISViT Project.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2026Article
- Pre-Myopic Children: Trends in Myopia Development and Management in Canada.Journal of clinical medicine · 2026Article
- Cross-sectional associations of nighttime sleep and daytime nap duration with myopia in preschool children: the mediating role of body mass index.Frontiers in medicine · 2026Article
- The global landscape of myopia prevalence and its social determinants in children and adolescents: a cross-regional analysis.Frontiers in ophthalmology · 2026Article
- The prevalence and demographic profile of myopia among school children in Beirut City, Lebanon.BMC public health · 2025Article
- Risk Factors and Cumulative Risk of Comorbid Myopia and Obesity Among Children and Adolescents in Southern China: A Cross-Sectional Study.Health science reports · 2025Article
- Vision screening and refraction of Greenlandic schoolchildren.Acta ophthalmologica · 2025Article
- Prevalence, sociodemographic risk factors, and coverage of myopia correction among adolescent students in the central region of Portugal.BMC public health · 2024Article
- The Myopia Prevalence and Association With Physical Activity Among Primary School Students Aged 6-12 Years: A Cross-Sectional Study in Tianjin, China.Translational vision science & technology · 2024Article
- Myopia prevalence, refractive status and uncorrected myopia among primary and secondary school students in Germany.Frontiers in medicine · 2024Article
- The association between sleep duration and risk of myopia in Chinese school-aged children: a cross-sectional study.Sleep & breathing = Schlaf & Atmung · 2023Article
- A Review of the Role of the School Spatial Environment in Promoting the Visual Health of Minors.International journal of environmental research and public health · 2023Review
- Decision Behavior and Influential Factors of Spectacle Prescription for Schoolchildren in Taiwan.Clinical optometry · 2023Article
- Prevalence and influence factors for myopia and high myopia in schoolchildren in Shandong, China.Central European journal of public health · 2022Article
- Objective and Subjective Behavioral Measures in Myopic and Non-Myopic Children During the COVID-19 Pandemic.Translational vision science & technology · 2021Article
- Recent Epidemiology Study Data of Myopia.Journal of ophthalmology · 2020Review
- Correlation of Myopia with Physical Exercise and Sleep Habits among Suburban Adolescents.Journal of ophthalmology · 2020Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeA pilot study to determine the prevalence of myopia, proportion of uncorrected myopia and pertinent environmental factors among children in a suburban region in Canada.
methodsRefraction with cycloplegia and ocular biometry were measured in children of two age groups. Myopia was considered at a spherical equivalent refraction (SER) ≤-0.50 D in at least one eye. Parents completed a questionnaire that captured the child's daily activities.
resultsA total of 166 children completed the study (83 aged 6-8 and 83 aged 11-13). Myopia prevalence was 17.5% among the overall group, 6.0% among ages 6-8 and 28.9% among ages 11-13. Mean subjective SER in myopic children was -1.10 D (95% confidence interval (CI), -0.34 to -1.86 D) at ages 6-8 and -2.44 D (95% CI, -1.71 to -3.18 D) at ages 11-13. In this study, 34.5% of the myopic children were uncorrected, which represented 6.0% of the entire group of children. Mean axial length (AL) increased by 1.03 mm from ages 6-8 (mean 22.62 mm; 95% CI, 22.45 to 22.79 mm) to ages 11-13 (mean 23.65 mm; 95% CI, 23.45 to 23.84 mm; p < 0.01). The correlation coefficient between AL and SER was -0.618 (p < 0.01). Binary logistic regression between outdoor time and the prevalence of myopia showed that one additional hour of outdoor time per week lowered the odds of a child having myopia by 14.3% (p = 0.007).
conclusionMyopia prevalence increased from 6% at ages 6-8 to 29% at ages 11-13. Thirty-five per cent of the myopes in this study were uncorrected. More time outdoors may be beneficial to protect against myopia onset.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.