. Author manuscript; available in PMC: 2007 Nov 1.

Published in final edited form as: J Cataract Refract Surg. 2006 Nov;32(11):1843–1850. doi: 10.1016/j.jcrs.2006.04.046

Table 2.

Mean difference between LASIK-induced changes in corneal power measures and MRSE change (17 patients, 32 eyes).

Parameter	Mean Difference±SD	P Value^*	Correlation (r²)
SimK	-0.60±0.55	<.001	0.91
Total power (3.0 mm)	-0.16±0.44	.04	0.94
Total power (4.0 mm)	-0.33±0.43	<.001	0.94
Central K (3.0 mm)	-0.48±0.49	<.001	0.92
Central K (4.0 mm)	-0.65±0.50	<.001	0.93

MRSE = manifest refractive spherical equivalent; SimK = simulated keratometry

P values are for the null hypothesis that the difference between corneal power change and MRSE change is zero. Generalized estimation equations were used to calculate the P values.