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Table 1 P1 and N1 amplitude densities in ring 1–2 of ERM patients (mean ± SD, dv/deg2)

From: Assessment of macular function in patients with idiopathic Epiretinal membrane by multifocal Electroretinography: correlation with visual acuity and optical coherence tomography

ring

P1 amplitude density

N1 amplitude density

affected

control

t

p-value

affected

control

t

P-value

1

40.70 ± 15.58

49.87 ± 14.23

3.593

0.002*

−28.06 ± 9.11

−28.75 ± 7.98

−0.284

0.779

2

22.12 ± 7.31

26.04 ± 6.55

3.291

0.004*

−14.23 ± 4.25

−12.07 ± 8.82

1.002

0.329

  1. *P < 0.05 (by paired-samples t-test)