Effect of Flat Cornea on Visual Outcome after LASIK

Table 2

Postoperative CDVA stratified by preoperative keratometry.

Myopia group (D)	Postoperative CDVA (log MAR)			-test comparing eyes with Preop K <42 D and >46 D	ANOVA comparing 3 groups with different; Preop
	Mean ± SD
	Preop K <42 D	Preop = 42 to 45.9 D	Preop K >46 D
	(number of eyes)	(number of eyes)	(number of eyes)
−6 to −7.9 D	0.0 ± 0.11 (109)	0.0 ± 0.12 (119)	0.0 ± 0.16 (142)	0.21	0.657
−8 to −9.9 D	0.05 ± 0.15 (66)	0.0 ± 0.13 (114)	0.11 ± 0.2 (109)	0.032	0.27
−10 to −12 D	0.12 ± 0.29 (28)	0.18 ± 0.29 (58)	0.18 ± 0.4 (67)	0.015

CDVA: corrected distance visual acuity; Preop: preoperative; : keratometry; ANOVA: analysis of variance.