Table 2. Baseline data.
Parameters | L-ICF group (n=22) | L-CCF group (n=22) | t | P | M-ICF group (n=28) | M-CCF group (n=25) | t | P |
Age (y) | 11.32±1.78 | 10.50±1.65 | 1.578 | 0.122 | 12.04±2.36 | 12.52±2.16 | -0.775 | 0.442 |
BCVA (logMAR) | -0.05±0.04 | -0.04±0.03 | -0.654 | 0.517 | -0.05±0.05 | -0.05±0.04 | -0.412 | 0.682 |
SE (D) | -2.08±0.53 | -1.89±0.51 | -1.147 | 0.258 | -4.15±0.74 | -4.33±0.70 | 0.900 | 0.372 |
AL (mm) | 23.97±0.63 | 23.95±0.61 | 0.126 | 0.901 | 24.80±0.82 | 25.02±0.96 | -0.869 | 0.389 |
RMSh (µm) | 0.66±0.31 | 0.57±0.42 | 0.801 | 0.427 | 0.75±0.31 | 0.82±0.37 | -0.768 | 0.446 |
SFChT (µm) | 263.05±23.59 | 259.00±16.15 | 0.664 | 0.511 | 229.07±27.54 | 224.16±25.59 | 0.670 | 0.506 |
L-ICF: Low myopia subjects fitted with increased compression factor (1.75 D) ortho-k; L-CCF: Low myopia subjects fitted with conventional compression factor (0.75 D) ortho-k; M-ICF: Moderate myopia subjects fitted with increased compression factor (1.75 D) ortho-k; M-CCF: Moderate myopia subjects fitted with conventional compression factor (0.75 D) ortho-k; BCVA: Best corrected visual acuity; SE: Spherical equivalent; AL: Axial length; RMSh: Higher-order aberrations expressed as root mean square; SFChT: Subfoveal choroidal thickness.
mean±SD