Table 4.

The mean of the differences between intended and achieved corrections

Follow up visit	The mean of the difference* (D)		P-value
	FLEX	FemtoLASIK
Week 1	−0.24 ± 0.27	−0.14 ± 0.39	0.411
Month 1	−0.31 ± 0.32	−0.29 ± 0.31	0.888
Month 3	−0.31 ± 0.36	−0.28 ± 0.32	0.791
Month 6	−0.29 ± 0.30	−0.25 ± 0.30	0.594

Notes:

^*Achieved correction – intended correction

Abbreviations: FLEX, femtosecond lenticule extraction; FemtoLASIK, femtosecond laser-assisted in situ keratomileusis; D, diopters.