Table 1.

Clinical characteristics of enrolled patients

Characteristics	ERM group (n = 25)	Control group (n = 24)	P value
Age, years	63.92 ± 5.27	63.63 ± 3.89	0.809
Follow up, months	18.68 ± 8.88	18.96 ± 5.96	0.898
Sex, male (%)	6 (24.0)	11 (45.8)	0.140
Diabetes, yes (%)	2 (8.0)	2 (8.3)	0.680
Hypertenstion, yes (%)	11 (44.0)	10 (41.7)	0.549
Laterality, OD (%)	15 (60.0)	15 (62.5)	> 0.999
Previous LASER photocoagulation, yes (%)	3 (12.0)	2 (8.3)	0.520
Refractive error in SE, D	-0.48 ± 0.66	-0.38 ± 0.26	0.283
Refractive astigmatism, D	-0.57 ± 0.34	-0.47 ± 0.26	0.510
Axial lengths, mm	23.53 ± 0.70	23.86 ± 0.98	0.285
Mean keratometry, D	44.09 ± 1.76	43.96 ± 1.26	0.796
Corneal astigmatism, D	-0.61 ± 0.38	-0.58 ± 0.26	0.762
Central subfield thickness, µm	398.85 ± 53.44	266.25 ± 23.38	< 0.001
Grade of ERM
Grade 2, no (%)	11 (44.0)
Grade 3, no (%)	14 (56.0)

Data are mean ± standard deviation (range) unless otherwise indicated

EIFL ectopic inner foveal layer, ERM epiretinal membrane, SE spherical equivalent