Comparison of errors in ablation depth calculation after myopic femtosecond laser in situ keratomileusis in patients with different degrees of myopia: a prospective study

Table 2 Postoperative refractive status

Groups	n	UCVA = 20/20		SE (D)
Groups	n	1-day post operation (%)	1-month post operation (%)	1-day post operation	1-month post operation
Low and Moderate Myopia	55	55 (100)	54 (98.2)	0.41 ± 0.42	0.20 ± 0.03
High Myopia	45	41 (88.9)	43 (95.6)	0.29 ± 0.61	0.06 ± 0.21
Very High Myopia	9	8 (88.9)	8 (88.9)	–0.53 ± 0.38	–0.22 ± 0.32
F/χ²		5.422	2.020	13.225	9.840
p		0.066	0.364	< 0.001	< 0.001

Data are presented as mean ± SD, compared with chi-square test or one-way analysis of various (ANOVA). UCVA Uncorrected visual acuity, SE Spherical equivalent

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