Table 3.

Pearson correlation analysis of the post-operative BCVA and interocular differences of Optical Coherence Tomography Angiography Parameters in Patients underwent epiretinal membrane revomal

Interocular differences (%)		Post-operative BCVA,LogMAR
		Pearson r value	P value
SCP
FAZ area	53.91 ± 31.25	0.85	<0.0001*
Foveal VDs	27.39 ± 20.18	0.27	0.35
Parafoveal VDs	12.68 ± 8.53	−0.16	0.58
DCP
Foveal VDs	70.89 ± 42.68	−0.2	0.5
Parafoveal VDs	10.67 ± 11.94	−0.32	0.27
OCP
Outer retina flow area	60.56 ± 104.1	0.14	0.64
Foveal VDs	41.32 ± 23.52	−0.13	0.67
Parafoveal VDs	17.77 ± 13.58	0.22	0.46
CCP
Choroid flow area	10.32 ± 6.99	−0.32	0.26
Foveal VDs	16.80 ± 13.40	−0.33	0.26
Parafoveal VDs	5.57 ± 4.38	−0.27	0.35
Thickness measured at foveal centre
Total	55.18 ± 25.59	0.59	0.0003*
Inner retina	65.41 ± 31.35	0.66	<0.0001*
Outer retina	42.05 ± 23.67	0.33	0.25
Thickness measured at parafovea
Total	35.31 ± 36.83	0.78	<0.0001*
Inner retina	45.15 ± 32.50	0.77	<0.0001*
Outer retina	13.61 ± 8.55	0.3	0.29

Interocular differences at 6 months after surgery were defined as follows: (the absolute value of differences between post-operative eye measurement and fellow eye measurement)/fellow eye measurement) × 100%

OCTA optical coherence tomography angiography, ERM epiretinal membrane, BCVA best-corrected visual acuity, SCP superficial capillary plexus, FAZ foveal  avascular zone, VDs vessel densities, DCP deep  capillary plexus, OCP outer retinal capillary plexus, CCP choroidal capillary plexus

*The value was statistically significant (P < 0.05)