Clinical efficacy of femtosecond laser-assisted phacoemulsification in diabetic cataract patients

Table 4 Comparison of high-order phase difference detection of cornea between two groups of patients (mean ± SD)

Group	Control group (60)	Therapy group (60)	t	P value
TOTAL (μm)	2.52 ± 0.63	2.08 ± 0.32	4.403	0.000
Tilt (μm)	0.62 ± 0.16	0.94 ± 0.10	-11.993	0.000
High (μm)	0.46 ± 0.10	0.60 ± 0.12	-6.338	0.000
S3 + S5 + S7 (μm)	0.31 ± 0.06	0.53 ± 0.08	-15.556	0.000
S4 + S6 + S8 (μm)	0.24 ± 0.03	0.35 ± 0.11	-6.822	0.000