Table 2.
Preoperative and Postoperative Corneal Astigmatism Data (D)
| Groups mean ± SD median (range) |
Preoperation | 1 Day Postoperation | 2 Weeks Postoperation | 1 Month Postoperation | 3 Months Postoperation | P a |
|---|---|---|---|---|---|---|
| A1 | 0.37 ± 0.07 0.39 (0.23 to 0.49) |
0.68 ± 0.32 0.82 (0.20 to 1.26) |
0.64 ± 0.22 0.60 (0.26 to 1.05) |
0.55 ± 0.17 0.55 (0.25 to 0.86) |
0.42 ± 0.12 0.44 (0.22 to 0.61) |
0.17 (power = 50.64%) |
| A2 | 0.73 ± 0.11 0.70 (0.58 to 0.99) |
0.63 ± 0.26 0.66 (0.26 to 1.27) |
0.48 ± 0.12 0.45 (0.29 to 0.86) |
0.49 ± 0.09 0.54 (0.36 to 0.60) |
0.44 ± 0.09 0.45 (0.25 to 0.56) |
0.00 (power = 100%) |
| B1 | 0.40 ± 0.07 0.41 (0.27 to 0.49) |
0.80 ± 0.46 0.88 (0.20 to 1.87) |
0.66 ± 0.23 0.62 (0.26 to 1.00) |
0.60 ± 0.22 0.57 (0.25 to 1.00) |
0.47 ± 0.18 0.53 (0.12 to 0.88) |
0.15 (power = 52.65%) |
| B2 | 0.73 ± 0.12 0.68 (0.58 to 0.99) |
1.01 ± 0.38 0.91 (0.66 to 2.16) |
0.79 ± 0.30 0.69 (0.48 to 1.54) |
0.79 ± 0.28 0.83 (0.45 to 1.83) |
0.69 ± 0.21 0.70 (0.43 to 1.35) |
0.22 (power = 31.10%) |
| A1/B1 (P) | 0.21 (power = 40.89%) |
0.32 (power = 25.94%) |
0.73 (power = 8.83%) |
0.42 (power = 21.03%) |
0.29 (power = 28.57%) |
– |
| A2/B2 (P) | 0.98 (power = 5.00%) |
0.00 (power = 99.61%) |
0.00 (power = 99.96%) |
0.00 (power = 99.99%) |
0.00 (power = 100%) |
– |
aComparison between preoperation and 3 months postoperation