Table 2.
Mean corneal astigmatism prediction error and intraclass correlation coefficient between estimated and measured (or calculated) corneal astigmatism
IOLMaster | SimK | Baylor - IOLMaster | Baylor - SimK | Barrett - IOLMaster | Barrett - SimK | Wavefront | TNP | TCP | Vector | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | 1 M | 3 M | |
WTR eyes | ||||||||||||||||||||
Mean prediction error (D) | ||||||||||||||||||||
WTR/ATR | −0.33* | −0.42* | −0.46* | −0.56* | 0.54* | 0.45* | 0.57* | 0.48* | 0.32* | 0.23 | 0.38* | 0.29 | −0.26* | −0.35* | 0.12 | 0.03 | 0.02 | −0.07 | 0.06 | −0.03 |
Oblique | −0.25* | −0.28* | −0.23 | −0.25* | −0.23 | −0.26 | −0.18 | −0.22 | −0.20 | −0.07 | −0.18 | −0.21 | −0.19 | −0.22 | 0.04 | 0.01 | 0.05 | 0.02 | −0.16 | −0.19 |
ICC of | ||||||||||||||||||||
WTR/ATR | 0.74 | 0.66 | 0.92 | 0.87 | 0.75 | 0.67 | 0.90 | 0.83 | 0.81 | 0.78 | 0.83 | 0.82 | 0.94 | 0.90 | 0.70 | 0.61 | 0.69 | 0.61 | 0.94 | 0.90 |
Oblique | 0.60 | 0.43 | 0.79 | 0.84 | 0.60 | 0.45 | 0.71 | 0.80 | 0.41 | 0.46 | 0.42 | 0.49 | 0.79 | 0.82 | 0.53 | 0.62 | 0.53 | 0.63 | 0.76 | 0.82 |
ATR eyes | ||||||||||||||||||||
Mean prediction error (D) | ||||||||||||||||||||
WTR/ATR | −0.34 | −0.22 | −0.17 | −0.15 | 0.06 | 0.18 | 0.43* | 0.55* | 0.31 | 0.43 | 0.14 | 0.26 | 0.21 | 0.33 | −0.26 | −0.14 | −0.17 | −0.05 | −0.08 | 0.04 |
Oblique | −0.20 | 0.02 | −0.06 | 0.16 | −0.06 | 0.16 | −0.05 | 0.17 | −0.18 | 0.04 | −0.01 | 0.20 | 0.17 | 0.39* | 0.06 | 0.28 | 0.07 | 0.29 | −0.09 | 0.13 |
ICC of | ||||||||||||||||||||
WTR/ATR | 0.41 | 0.32 | 0.71 | 0.56 | 0.21 | 0.16 | 0.52 | 0.47 | 0.41 | 0.32 | 0.47 | 0.36 | 0.65 | 0.75 | 0.67 | 0.56 | 0.59 | 0.47 | 0.74 | 0.74 |
Oblique | 0.43 | 0.51 | 0.64 | 0.64 | 0.14 | 0.18 | 0.50 | 0.66 | 0.45 | 0.52 | 0.38 | 0.42 | 0.57 | 0.60 | 0.57 | 0.60 | 0.54 | 0.76 | 0.77 | 0.78 |
TNP true net power, TCP total corneal refractive power, M month, WTR with-the-rule, ATR against-the-rule, D diopters, ICC Intraclass correlation coefficient
*Significantly different from zero (all P < .05)