Table 2.

Spherical aberration measured over 4 mm and 6 mm pupils in the study groups

Type of IOL	Spherical aberration (Z40; μm)		P-value*
	4 mm pupil	6 mm pupil
Sensar	0.35 ± 0.14	0.44 ± 0.15	<0.001
Akreos AO	0.29 ± 0.09	0.33 ± 0.08	0.02
Tecnis	0.14 ± 0.10	0.30 ± 0.18	0.013
AcrySof IQ	0.18 ± 0.11	0.27 ± 0.10	<0.001
P-value**	<0.001	0.005

^*paired t-test

^**ANOVA