Table 4 Lens thickness and refractive lens power stratified by the refractive status and sex.
From: Refractive lens power and lens thickness in children (6–16 years old)
Refractive status | Lens thickness (mm) | Refractive lens power (Diopter) | ||||||
|---|---|---|---|---|---|---|---|---|
Boys | Girls | Total | P | Boys | Girls | Total | P | |
Medium to marked hyperopia (spherical equivalent [SE] > 2.0D diopters) | 3.39 ± 0.18 | 3.46 ± 0.15 | 3.43 ± 0.16 | 0.49 | 25.54 ± 1.19 | 28.13 ± 2.33 | 27.05 ± 2.30 | 0.047 |
Mild hyperopia (0.5 < spherical equivalent [SE] ≤ 2.0D) | 3.33 ± 0.15 | 3.35 ± 0.15 | 3.34 ± 0.15 | 0.51 | 25.22 ± 1.68 | 26.36 ± 1.52 | 25.70 ± 1.71 | < 0.001 |
Emmetropia (− 0.5D < spherical equivalent [SE] ≤ + 0.5D) | 3.31 ± 0.15 | 3.34 ± 0.14 | 3.32 ± 0.15 | 0.18 | 24.70 ± 1.35 | 26.16 ± 1.65 | 25.33 ± 1.65 | < 0.001 |
Moderate myopia (− 6.0D ≤ spherical equivalent [SE] ≤ − 0.5D) | 3.25 ± 0.17 | 3.29 ± 0.16 | 3.27 ± 0.16 | 0.02 | 23.55 ± 1.74 | 24.89 ± 1.93 | 24.24 ± 1.96 | < 0.001 |
High myopia (spherical equivalent [SE] < − 6.0D) | 3.13 ± 0.15 | 3.34 ± 0.14 | 3.27 ± 0.17 | 0.004 | 23.10 ± 1.65 | 25.37 ± 1.55 | 24.54 ± 1.91 | < 0.001 |
F = 7.897, P < 0.001 | F = 21.97, P < 0.001 | |||||||
