Table 4 Axial length in different degrees of myopia inthe ortho-k and spectacle groups during the study period
From: Effects of orthokeratology on the progression of low to moderate myopia in Chinese children
Total | Axial length (mm, initial) | Axial length (mm,1 year) | Axial elongation (mm) | P-value | |
|---|---|---|---|---|---|
Low myopia | |||||
Ortho-k | N = 91 | 24.57 ± 0.72 | 24.85 ± 0.66 | 0.28 ± 0.18 | <0.05 |
Control | N = 68 | 24.46 ± 0.61 | 24.85 ± 0.63 | 0.38 ± 0.15 | <0.05 |
Moderate myopia | |||||
Ortho-k | N = 50 | 24.97 ± 0.66 | 25.22 ± 0.71 | 0.25 ± 0.16 | <0.05 |
Control | N = 62 | 25.34 ± 0.68 | 25.72 ± 0.69 | 0.38 ± 0.12 | <0.05 |