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Pei-Chang Wu, Ken-Kuo Lin, Chi-Chin Sun, Chien-Neng Kuo, Chuehtan Chen, Yi-Hsin Yang; After-school tutorial classes associated with myopia and longer axial length in Chinese children in Taiwan. Invest. Ophthalmol. Vis. Sci. 2015;56(7 ):2951.
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© ARVO (1962-2015); The Authors (2016-present)
To evaluate the factors associated with myopia and axial lengths in the school children included in the Recess Outside Classroom-711 trial.
In total 24 elementary schools located at 4 different areas of Taiwan, cycloplegic autorefraction and axial length by noncontact optical low-coherence reflectometer (Lenstar) were measured at baseline in 1336 grade 1 children. The children and parent questionnaires were obtained.
The myopia prevalence was 20.88%. The mean refraction error (spherical equivalence) was 0.15 +/- 1.18 D. The mean axial length was 22.83 +/- 0.78 mm. In the multivariate analysis, the factors of male, parent myopia, near work and after-school tutorial classes were significant associated with myopia status. For the axial length, the factors of male, age, less outdoors and after-school tutorial classes were associated with longer axial length.
After-school tutorial classes was an important factor associated with myopia and axial length in junior grade elementary schoolchildren in Taiwan.
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