Table 3.

Comparison of refractive errors between Acrysof and Tecnis intraocular lenses (values represent the mean ± standard deviation).

	Acrysof	Tecnis
	n = 41	n = 29	P-value∗
Mean absolute errors, D
SRK/T	0.61 ± 0.39	0.53 ± 0.32	.341
Hoffer Q	0.57 ± 0.79	0.56 ± 0.30	.976
Haigis	0.54 ± 0.42	0.50 ± 0.35	.689
Holladay	0.51 ± 0.43	0.51 ± 0.29	.977
Predicted refractive errors, D
SRK/T	−0.01 ± 0.73	−0.30 ± 0.54	.102
Hoffer Q	−0.29 ± 0.70	−0.41 ± 0.50	.414
Haigis	−0.07 ± 0.68	−0.24 ± 0.56	.270
Holladay	−0.17 ± 0.65	−0.36 ± 0.46	.166

D = diopters.

Acrysof = Acrysof IQ (SN60WF; Alcon, Fort Worth, TX), Tecnis = Tecnis one piece (ZCB00; Abbott Medical Optics, Santa Ana, CA).

^∗The P-value using the independent sample t-test.