Keratometric measurement | Preoperative (Mean diopter ± SD) | Postoperative (Mean diopter ± SD) | * p value | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
corneal power | astigmatism | corneal power | astigmatism | corneal power | astigmatism | |||||||
magnitude | J0 | J45 | magnitude | J0 | J45 | magnitude | J0 | J45 | ||||
Automated K | 43.68 ± 1.51 | 0.81 ± 0.75 | −0.11 ± 0.50 | 0.04 ± 0.21 | 43.68 ± 1.50 | 0.71 ± 0.60 | −0.07 ± 0.42 | 0.03 ± 0.20 | 0.84 | 0.008 | 0.06 | 0.66 |
Scheimpflug Anterior K | 43.66 ± 1.50 | 0.89 ± 0.75 | −0.15 ± 0.52 | 0.03 ± 0.22 | 43.64 ± 1.67 | 0.70 ± 0.60 | −0.07 ± 0.41 | 0.03 ± 0.19 | 0.65 | < 0.001 | 0.003 | 0.96 |
Scheimpflug Posterior K | −6.39 ± 0.28 | 0.30 ± 0.73 | 0.14 ± 0.09 | −0.02 ± 0.05 | − 6.40 ± 0.23 | 0.31 ± 0.18 | 0.14 ± 0.09 | −0.03 ± 0.06 | 0.43 | 0.27 | 0.53 | 0.30 |
Scheimpflug EKR 3.0-mm | 43.47 ± 1.49 | 0.81 ± 0.70 | −0.01 ± 0.49 | 0.00 ± 0.24 | 43.45 ± 1.46 | 0.73 ± 0.54 | 0.07 ± 0.40 | −0.01 ± 0.21 | 0.87 | 0.14 | 0.025 | 0.61 |
Scheimpflug EKR 4.5-mm | 43.68 ± 1.46 | 0.81 ± 0.60 | −0.03 ± 0.46 | 0.01 ± 0.22 | 43.71 ± 1.49 | 0.69 ± 0.55 | 0.03 ± 0.39 | 0.00 ± 0.20 | 0.28 | 0.005 | 0.023 | 0.61 |
Scheimpflug TCRP 2.0-mm ring | 42.90 ± 1.63 | 0.94 ± 0.79 | −0.02 ± 0.55 | 0.00 ± 0.29 | 42.90 ± 1.64 | 0.83 ± 0.61 | 0.10 ± 0.46 | 0.00 ± 0.22 | 0.35 | 0.10 | 0.003 | 0.78 |
Scheimpflug TCRP 3.0-mm zone | 42.93 ± 1.62 | 0.90 ± 0.71 | −0.01 ± 0.52 | 0.01 ± 0.26 | 42.93 ± 1.63 | 0.80 ± 0.59 | 0.09 ± 0.44 | 0.00 ± 0.21 | 0.45 | 0.10 | 0.002 | 0.82 |
Scheimpflug TCRP 4.0-mm zone | 43.03 ± 1.60 | 0.86 ± 0.64 | −0.03 ± 0.49 | 0.00 ± 0.23 | 43.04 ± 1.63 | 0.71 ± 0.59 | 0.06 ± 0.42 | 0.00 ± 0.19 | 0.31 | < 0.001 | 0.002 | 0.85 |