Table 2. Mean interdevice differences in axial length measurements between each pair of devices.

Pairs of devices	Axial length (mm)
	Normal (n=84)	P	High myopia (n=49)	P
Ultrasound-Lenstar	-0.23±0.09	0.000	-0.25±0.13	0.000
Ultrasound-IOLMaster	-0.24±0.09	0.000	-0.24±0.14	0.000
IOLMaster-Lenstar	0.01±0.04	0.031	-0.01±0.04	0.100

P-values from paired t-tests.