Clinical Study

Comparison of Two Toric IOLs with Different Haptic Design: Optical Quality after 1 Year

Table 4

Postoperative ocular aberrations, visual quality, rotation, tilt, and decentration in the two study groups.

AT TORBI IOLTecnis toric IOL
Mean ± SDMean ± SD

RMS (μm)0.60 ± 0.340.61 ± 0.330.96
Tilt vertical (μm)0.13 ± 0.320.03 ± 0.350.05
Tilt horizontal (μm)−0.01 ± 0.24−0.01 ± 0.310.93
Strehl0.05 ± 0.040.05 ± 0.040.74
MTF0.26 ± 0.100.25 ± 0.080.74
Higher-order terms
HORMS (μm)0.26 ± 0.150.27 ± 0.180.74
Coma vertical (μm)0.04 ± 0.090.01 ± 0.090.04
Coma horizontal (μm)−0.01 ± 0.07−0.006 ± 0.070.68
SA (μm)0.05 ± 0.060.01 ± 0.04<0.001
HO Strehl0.11 ± 0.080.13 ± 0.090.07
HO MTF0.35 ± 0.110.39 ± 0.120.04
Rotation SL (deg)3.0 ± 2.263.27 ± 2.370.55
Vertical tilt (mm)0.46 ± 1.38−0.29 ± 1.680.013
Horizontal tilt (mm)0.84 ± 1.470.65 ± 1.640.48
Ver. decentration (mm)0.02 ± 0.21−0.06 ± 0.200.04
Hor. decentration (mm)0.07 ± 0.34−0.06 ± 0.040.07

RMS = root mean square; HORMS = higher-order root mean square; MTF = modulation transfer function; SA = spherical aberration; P = difference between the two groups using generalized estimating equation; Rotation SL = rotation measured at the slit lamp.