I-Trace | Pre-operation | Post operation 1 year | p |
---|---|---|---|
Defocus (μ) | |||
Positive | |||
Min. – Max. | 0.075–6.288 | 0.023–1.304 | Zp=0.109 |
Mean ± SD. | 2.290 ± 1.859 | 0.266 ± 0.411 | |
Median | 2.233 | 0.069 | |
Negative | |||
Min. – Max. | −1.256 – –0.029 | −0.437 – –0.008 | – |
Mean ± SD. | − 0.319 ± 0.525 | −0.112 ± 0.162 | |
Median | −0.101 | − 0.046 | |
Astig (μ @) | |||
Min. – Max. | 0.014–1.122 | 0.030–0.619 | Zp=0.043* |
Mean ± SD. | 0.434 ± 0.372 | 0.237 ± 0.187 | |
Median | 0.367 | 0.170 | |
HO Total (μ) | |||
Min. – Max. | 0.066–0.602 | 0.061–0.500 | Zp=0.345 |
Mean ± SD. | 0.271 ± 0.163 | 0.161 ± 0.115 | |
Median | 0.254 | 0.127 | |
Coma (μ @) | |||
Min. – Max. | 0.013–0.298 | 0.010–0.200 | Zp=0.500 |
Mean ± SD. | 0.126 ± 0.087 | 0.068 ± 0.049 | |
Median | 0.114 | 0.066 | |
Spherical (μ) | |||
Positive | |||
Min. – Max. | 0.018–0.135 | 0.0–0.049 | – |
Mean ± SD. | 0.056 ± 0.038 | 0.023 ± 0.020 | |
Median | 0.047 | 0.021 | |
Negative | |||
Min. – Max. | −0.472 – –0.003 | − 0.169 – –0.001 | – |
Mean ± SD. | − 0.168 ± 0.206 | −0.042 ± 0.046 | |
Median | −0.071 | − 0.023 | |
2ry Astig (μ @) | |||
Min. – Max. | 0.005–0.331 | 0.004–0.149 | Zp=0.500 |
Mean ± SD. | 0.059 ± 0.081 | 0.036 ± 0.037 | |
Median | 0.033 | 0.021 | |
Trefoil (μ @) | |||
Min. – Max. | 0.026–0.242 | 0.016–0.340 | Zp=0.893 |
Mean ± SD. | 0.117 ± 0.055 | 0.104 ± 0.088 | |
Median | 0.129 | 0.079 | |
RMS (mm) | |||
Min. – Max. | 2.30–5.60 | 2.0–4.0 | tp=0.030* |
Mean ± SD. | 3.847 ± 1.053 | 2.767 ± 0.581 | |
Median | 3.70 | 2.60 |