Comparison of Visual Outcome and Morphologic Change between Different Surgical Techniques in Idiopathic Epiretinal Membrane Surgery

Table 3

Pre- and postoperative characteristics of ELM and EZ.

	Baseline		1 M		3 M		6 M		9 M		12 M
	ELM(+)	EZ(+)	ELM(+)	EZ(+)	ELM(+)	EZ(+)	ELM(+)	EZ(+)	ELM(+)	EZ(+)	ELM(+)	EZ(+)
I (19)	11	12	11	12	15	14	19	17	19	19	19	19
II (20)	13	13	10	10	14	14	18	17	20	18	20	20
III (21)	13	14	13	14	16	16	21	19	21	21	21	21
value
I versus II	0.899	0.905	0.863	0.613	0.785	0.798	0.491	0.676	1	0.491	1	1
II versus III	0.837	0.88	0.651	0.444	0.925	0.925	0.447	0.954	1	0.447	1	1
I versus III	0.7986	0.816	0.796	0.816	0.835	0.855	1	0.916	1	1	1	1

ELM(+): preservation of external limiting membrane; EZ(+): preservation of ellipsoid zone; Group I: ERM removal without ILM peeling; Group II: ERM removal and whole-piece ILM peeling; Group III: ERM removal and ILM maculorrhexis; M: month.