Table 3.

Main results of meta analysis

Outcome	No. of studies	No. of eyes		Test for heterogeneity			Overall effect
		ILM peeling	ILM preserved	x 2	I2	P	WMD/RR (95 % CI)	Z	P
Primary anatomic reattachment [9, 10, 15–18]	6	219	138	8.15	38.6 %	0.148	1.19(1.04, 1.36)	2.52	0.012
Macular hole closure[14–18]	5	127	83	2.47	0.0 %	0.650	1.71 (1.20, 2.43)	2.95	0.003
Improved BCVA at ≥6 months[14, 18]	2	27	14	0.17	0.0 %	0.677	0.06 (−0.31, 0.44)	0.33	0.738

BCVA best corrected visual acuity, ILM internal limiting membrane, RR relative risk, WMD weighted mean difference