Table 5.

Changes in 3rd-order aberrations after simulation of stiffening with pattern 4 for 3.0 mm, 6.0 mm, and 9.00 mm pupil diameters.

	Mean (μm) ± SD
	3.0 mm Pupil		6.0 mm Pupil		9.0 mm Pupil
Value	Preop	Postop	Preop	Postop	Preop	Postop	Change
Horizontal coma	–0.03 ± 0.11	0.00 ± 0.03	–0.02 ± 0.14	–0.02 ± 0.15	0.02 ± 0.60	–0.08 ± 0.43	–0.02 ± 0.06
Trefoil 1	0.06 ± 0.25	–0.01 ± 0.02	0.00 ± 0.01	0.00 ± 0.06	0.05 ± 0.35	0.01 ± 0.32	–0.03 ± 0.03
Trefoil 2	0.05 ± 0.13	0.00 ± 0.04	0.00 ± 0.08	0.01 ± 0.07	0.08 ± 0.23	0.06 ± 0.22	–0.02 ± 0.03
SA	0.12 ± 0.30	0.02 ± 0.03	0.27 ± 0.1	0.27 ± 0.11	2.10 ± 3.25	1.14 ± 0.26	–0.35 ± 0.53

SA = spherical aberration