Comparison of Individual Retinal Layer Thicknesses after Epiretinal Membrane Surgery with or without Internal Limiting Membrane Peeling

Table 1

Baseline characteristics and preoperative automated retinal layer segmentation.

	P group (ILM peeling); (); Mean ± SD	NP group (non-ILM peeling); (); Mean ± SD	value
Age (years)	66.59 ± 1.41	68.73 ± 1.14	0.245
Preoperative BCVA (logMAR)	0.23 ± 0.03	0.27 ± 0.03	0.255
Spherical equivalent (D)	0.41 ± 0.36	0.43 ± 0.31	0.958
Axial length (mm)	23.72 ± 0.20	23.31 ± 0.18	0.135
Total retinal thickness (µm)	466.4 ± 11.31	458.7 ± 10.25	0.616
RNFL thickness (µm)	84.46 ± 11.79	70.78 ± 9.81	0.378
GCL thickness (µm)	45.82 ± 1.39	49.73 ± 1.97	0.106
IPL thickness (µm)	45.97 ± 1.76	46.43 ± 1.86	0.858
INL thickness (µm)	50.49 ± 1.70	52.38 ± 1.71	0.435
OPL thickness (µm)	37.82 ± 1.32	40.46 ± 1.68	0.217
ONL thickness (µm)	114.2 ± 4.60	111.4 ± 4.35	0.660
PRL thickness (µm)	71.56 ± 0.69	70.84 ± 0.64	0.444
RPE thickness (µm)	16.21 ± 0.47	16.84 ± 0.52	0.369

BCVA = best-corrected visual acuity; SD = standard deviation; ILM = internal limiting membrane; RNFL = retinal nerve fiber layer; GCL = ganglion cell layer; IPL = inner plexiform layer; INL = inner nuclear layer; OPL = outer plexiform layer; ONL = outer nuclear layer; PRL = photoreceptor layer; RPE = retinal pigment epithelium. Independent Student’s t-test for statistical analysis between Group 1 and Group 2 for retinal layers, BCVA, age, spherical equivalent, and axial length.