Table 4.
Vector analysis of postoperative astigmatism between TICL and ICL/LRI groups
| Time | ICL/LRI | TICL | p-value1 |
|---|---|---|---|
| TIA | 1.50 (1.25,1.75) | 1.75 (1.38,1.75) | 0.125 |
| SIA | |||
| 1 day | 1.74 (1.40,1.98) | 1.73 (1.45,2.14) | 0.641 |
| 1 week | 1.34 (1.11,1.92) | 1.75 (1.31,1.97) | 0.082 |
| 1 month | 1.26 (1.00,1.56) | 1.69 (1.31,1.98) | 0.009 |
| 3 months | 1.21 (1.00,1.75) | 1.65 (1.26,1.94) | 0.021 |
| 6 months | 1.17 (1.00,1.64) | 1.68 (1.26,1.96) | 0.010 |
| p-value2 | 0.001 | 0.420 | |
| CI | |||
| 1 day | 1.10 (1.00,1.39) | 1.09 (0.96,1.28) | 0.491 |
| 1 week | 1.00 (0.71,1.26) | 1.02 (0.88,1.18) | 0.56 |
| 1 month | 0.89 (0.65,1.05) | 1.00 (0.85,1.18) | 0.035 |
| 3 months | 0.84 (0.67,1.05) | 1.00 (0.80,1.20) | 0.089 |
| 6 months | 0.80 (0.61,1.04) | 0.98 (0.78,1.25) | 0.018 |
| p-value2 | 0.001 | 0.420 | |
| Left-eye | |||
| TIA | 1.50 (1.25, 1.50) | 1.75 (1.25, 1.75) | 0.078 |
| SIA | |||
| 1 day | 1.53 (1.25, 1.92) | 1.77 (1.36, 2.17) | 0.259 |
| 1 week | 1.37 (1.04, 1.83) | 1.74 (1.04, 1.97) | 0.377 |
| 1 month | 1.18 (1.00, 1.53) | 1.69 (1.20, 2.00) | 0.046 |
| 3 months | 1.17 (1.01, 1.60) | 1.57 (1.20, 1.98) | 0.125 |
| 6 months | 1.14 (1.02, 1.53) | 1.66 (1.07, 1.97) | 0.079 |
| p-value2 | 0.270 | 0.676 | |
| CI | |||
| 1 day | 1.03 (0.94, 1.28) | 1.09 (0.91, 1.33) | 0.989 |
| 1 week | 0.97 (0.82, 1.28) | 1.02 (0.67, 1.16) | 0.817 |
| 1 month | 0.88 (0.67, 1.02) | 1.04 (0.72, 1.22) | 0.150 |
| 3 months | 0.88 (0.72, 1.07) | 0.97 (0.72, 1.18) | 0.550 |
| 6 months | 0.80 (0.68, 1.02) | 0.95 (0.72, 1.27) | 0.334 |
| p-value2 | 0.270 | 0.676 | |
| Right-eye | |||
| TIA | 1.50 (1.25, 1.75) | 1.63 (1.50, 1.75) | 0.588 |
| SIA | |||
| 1 day | 1.85 (1.46, 2.00) | 1.69 (1.48, 1.96) | 0.714 |
| 1 week | 1.34 (1.23, 1.97) | 1.77 (1.39, 1.97) | 0.109 |
| 1 month | 1.31 (1.00, 1.83) | 1.62 (1.34, 1.94) | 0.131 |
| 3 months | 1.25 (1.00, 1.75) | 1.74 (1.42, 1.91) | 0.054 |
| 6 months | 1.21 (1.00, 1.83) | 1.70 (1.34, 1.92) | 0.049 |
| p-value2 | 0.007 | 0.724 | |
| CI | |||
| 1 day | 1.13 (1.00, 1.46) | 1.09 (0.98, 1.25) | 0.438 |
| 1 week | 1.00 (0.70, 1.23) | 1.02 (0.93, 1.30) | 0.289 |
| 1 month | 0.92 (0.63, 1.08) | 1.01 (0.88, 1.15) | 0.112 |
| 3 months | 0.82 (0.63, 1.04) | 1.02 (0.88, 1.21) | 0.075 |
| 6 months | 0.79 (0.60, 1.08) | 1.00 (0.94, 1.24) | 0.025 |
| p-value2 | 0.007 | 0.724 |
1: Wilcoxon rank sum test
2: Friedman’s test
Note: data are presented as median (IQR)
TIA, target induced astigmatism; SIA, surgically induced astigmatism; CI, correction index = SIA/TIA