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Baseline characteristics of different periods.
| Stage 1 | Stage 2 | |
|---|---|---|
| Gender, male, N (%) | 66 (57.40) | 66 (57.40) |
| Gender, female, N (%) | 49 (42.6) | 49 (42.6) |
| Age | 9.34 ± 2.00 | 9.60 ± 2.30 |
| Spherical refractive errors (D) | −2.31 ± 1.33 | −2.51 ± 1.54 |
| Astigmatism (D) | −0.56 ± 0.94 | −0.59 ± 0.98 |
| AL (mm) | 24.55 ± 1.04 | 24.65 ± 1.03 |
Stage 1, Baseline before the COVID-19 pandemic; Stage 2, Baseline at the beginning of home confinement. AL, Axial Length. Data were expressed as mean ± standard deviations.
