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Adjusted mean change from baseline spherical equivalent refraction (left panel) and axial length (right panel) in each treatment group over a 1-year period. Error bars represent 1 SE of the mean. 0 M=0-month baseline; 6 M=6-month follow-up; 12 M=12 month follow-up. HAL, spectacle lenses with highly aspherical lenslets; SAL, spectacle lenses with slightly aspherical lenslets; SVL, single-vision spectacle lenses.
