Formula | N | Arithmetic IOL PE (D) | Absolute IOL PE (D) | Variances (D2) | ||
---|---|---|---|---|---|---|
Mean ± SD | Median (Quartile ) | Mean ± SD | Median (Quartile) | Median (Quartile) | ||
ZZ IOL | 38 | -0.00 ± 0.47 | -0.02 (-0.33 to 0.35) | 0.38 ± 0.26 | 0.33 (0.18 to 0.57) | 0.11 (0.03 to 0.33) |
Shammas | 33a | -0.40 ± 1.84 | -0.69 (-1.23 to -0.31) | 1.18 ± 1.46 | 0.77 (0.42 to 1.34)b | 0.60 (0.18 to 1.81)b |
Haigis-L | 33a | 0.21 ± 2.07 | -0.08 (-0.52 to 0.48) | 1.09 ± 1.76 | 0.46 (0.29 to 0.93)b | 0.22 (0.08 to 0.87)b |
Barrett True K (no history) | 38 | 0.19 ± 1.98 | -0.16 (-0.59 to 0.30) | 1.04 ± 1.68 | 0.52 (0.28 to 0.80)b | 0.27 (0.08 to 0.65)b |
Ray tracing | 38 | 0.65 ± 1.97 | 0.20 (-0.24 to 1.11)b | 1.10 ± 1.76 | 0.71 (0.20 to 1.25)b | 0.51(0.04 to 1.57)b |