Effects of vitrectomy combined with internal limiting membrane peeling in patients with diabetic macular edema

Table 3 Comparison of best-corrected visual acuity levels between the two study groups (n = 92 eyes)

Group (number of affected eyes)	BCVA (logMAR) (mean ± SD)			F	P value
	Before surgery	1 month after surgery	3 months after surgery
Control group (n = 47)	1.84 ± 0.64	1.39 ± 0.54	1.04 ± 0.39	Fgroup = 7.978	Pintergroup = 0.006
Stripping group (n = 45)	1.67 ± 0.46	1.03 ± 0.32	0.79 ± 0.30	Ftime = 441.237	Ptime < 0.001
t	1.457	3.868	0.436	Finteraction = 17.105	Pinteraction < 0.001
P value	0.149	< 0.001	< 0.001

BCVA: Best-corrected visual acuity.