High order aberrations before and after enhancement
Mean ± Standard Deviation
Variable 3mm pupil       5mm pupil
preoperative postoperative p value preoperative postoperative p value
RMS (μm) 0.553 ± 0.20 0.307 ± 0.19 <0.0001 1.369 ± 0.61 0.642 ± 0.51 <0.001
Coma (μm) 0.055 ± 0.05 0.064 ± 0.06 0.536 0.193 ± 0.23 0.169 ± 0.20 0.673
Trefoil (μm) 0.053 ± 0.04 0.054 ± 0.04 0.948 0.158 ± 0.162 0.137 ± 0.13 0.580
SA (μm) -0.005 ± 0.02 0.003 ± 0.03 0.225 -0.019 ± 0.08 -0.007 ± 0.07 0.561
RMS: Root mean square; SA: Spherical aberration; t: test; 2- sample assuming unequal variances
Table 2: Higher Order Aberrations (HOA) before and after enhancement.