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Updated: May 13, 2026
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Binocular Dynamic Visual Acuity in Eyeglass-Corrected Myopic Patients
Published on: March 29, 2022
Myopization factors affecting urban elementary school students in Taiwan
Ching-Ying Cheng1, Walter Huang, Kuo-Chen Su
1School of Optometry and Department of Ophthalmology, Chung Shan Medical University, Taichung, Taiwan.
Summary
Lag in optimal correction and spectacle wear significantly impact myopia progression in Taiwanese elementary students. Reading and writing hours also play a role, while outdoor time has minimal effect.
Area of Science:
- Ophthalmology
- Public Health
- Pediatrics
Background:
- School myopia is a growing concern among urban elementary students.
- Understanding the factors influencing myopia progression is crucial for early intervention.
Purpose of the Study:
- To investigate factors contributing to myopia development in urban elementary school students in Taiwan.
- To assess the predictive value of various lifestyle and management variables on refractive error changes.
Main Methods:
- Refraction and visual acuity assessment of 1894 students (grades 1-6).
- Parental questionnaires on potential myopization variables.
- Statistical analysis including correlation and linear regression.
Main Results:
- Refractive error increased with grade level, with significant prevalence differences between grades.
- Lag in optimal correction, outdoor spectacle wear, use of different spectacles for working distances, and weekday reading/writing hours explained 65.9% of refractive error change.
- Outdoor time and dietary factors showed minimal predictive value.
Conclusions:
- Individual factors influencing refractive error have varying predictive values.
- The combined effect of these variables determines the pattern and severity of school myopia.
