Table 4.

Comparison of mean predictive errors and mean absolute predictive errors from initial and final measurements of IOL Master 700 taken at least one year apart in 119 eyes

Formula		ME ± SD	MAE ± SD	MedE	MedAE	%AE ≤ 0.25D	%AE ≤ 0.50D	%AE ≤ 0.75D	%AE ≤ 1.00D
SRK/T	Initial	−0.16 ± 0.48	0.38 ± 0.34	−0.11	0.28	49	69	86	93
	Final	−0.12 ± 0.46	0.35 ± 0.32	−0.09	0.27	45	81	87	94
	Difference	0.04 ± 0.22	−0.03 ± 0.19
	p-value	0.137	0.215
BUII	Initial	−0.10 ± 0.44	0.36 ± 0.28	−0.09	0.28	45	76	87	96
	Final	−0.07 ± 0.39	0.31 ± 0.25	−0.05	0.24	52	82	92	99
	Difference	0.03 ± 0.26	−0.05 ± 0.21
	p-value	0.355	0.036*
Cook K6	Initial	0.00 ± 0.41	0.32 ± 0.25	0.01	0.27	46	78	92	99
	Final	0.03 ± 0.36	0.28 ± 0.22	0.06	0.23	52	83	97	100
	Difference	0.03 ± 0.26	−0.04 ± 0.22
	p-value	0.323	0.073
EVO	Initial	−0.10 ± 0.42	0.33 ± 0.27	−0.10	0.26	50	76	90	98
	Final	−0.07 ± 0.36	0.28 ± 0.24	−0.03	0.22	55	82	95	100
	Difference	0.03 ± 0.25	−0.05 ± 0.21
	p-value	0.270	0.036*
Hill-RBF	Initial	−0.11 ± 0.43	0.34 ± 0.28	−0.10	0.27	49	73	88	97
	Final	−0.07 ± 0.39	0.31 ± 0.25	−0.06	0.23	54	80	93	98
	Difference	0.04 ± 0.25	−0.03 ± 0.21
	p-value	0.224	0.189
Hoffer QST	Initial	−0.11 ± 0.46	0.36 ± 0.31	−0.06	0.28	45	75	89	94
	Final	−0.07 ± 0.42	0.32 ± 0.27	−0.06	0.25	52	79	92	97
	Difference	0.04 ± 0.25	−0.04 ± 0.21
	p-value	0.287	0.254
Kane	Initial	−0.16 ± 0.42	0.34 ± 0.29	−0.12	0.27	48	77	89	96
	Final	−0.13 ± 0.36	0.28 ± 0.26	−0.06	0.21	59	81	92	99
	Difference	0.03 ± 0.25	−0.06 ± 0.21
	p-value	0.370	0.008*
Pearl DGS	Initial	−0.06 ± 0.43	0.34 ± 0.27	−0.03	0.24	52	77	89	98
	Final	−0.03 ± 0.36	0.29 ± 0.23	0.02	0.24	53	81	96	100
	Difference	0.03 ± 0.27	−0.05 ± 0.22
	p-value	0.424	0.012*

Data are presented as mean ± standard deviation

Statistically significant values (p < 0.05) are shown in asterisk (^*)

Data were analyzed using Wilcoxon matched-pairs signed rank test

ME mean predictive error, SD standard deviation, MAE mean absolute predictive error, MedE median predictive error, MedAE median absolute predictive error, AE absolute predictive error, BUII Barrett Universal II