Table 1.

Mean absolute prediction error (MAPE) of three formulas in each intraocular lens (IOL) brands.

IOL brand formula	HOYA: NY-60/250/251 MAPE ± SE	Bausch & Lomb: enVista MX60 MAPE ± SE	Alcon: SN60WF MAPE ± SE	P-value
OKULIX	0.43 ± 0.07	0.43 ± 0.05	0.41 ± 0.05	0.96
SRK-T	0.34 ± 0.03	0.32 ± 0.04	0.40 ± 0.05	0.44
Hoffer Q	0.33 ± 0.03	0.39 ± 0.04	0.41 ± 0.06	0.50
P-value	0.26	0.30	0.99

IOL: Intraocular lens.

MAPE: Mean absolute prediction error.

SE: standard error.