Evaluation of Electrical Performance and Properties of Electroretinography Electrodes.

ABSTRACT:

Purpose

The aim of this study was to evaluate and compare the electrical performance and properties of commercially available electroretinography (ERG) electrodes.

Methods

A passive ionic model was used to measure impedance, noise, and potential drift in 10 types of ocular surface and skin ERG electrodes.

Results

The impedance for silver-based ocular electrodes are generally lower (range, 65.35-343.3 Ω) with smaller phase angles (range, -6.41° to -33.91°) than gold-based electrodes (impedance ranged from 285.95 Ω to 2.913 kΩ, and phase angle ranged from -59.65° to -70.01°). Silver-based ocular electrodes have less noise (median line noise of 6.48 x 10⁴nV²/Hz) than gold-based electrodes (median line noise of 2.26 x 10⁵nV²/Hz)

SUBMITTER: Man TTC 

PROVIDER: S-EPMC7414618 | biostudies-literature | 2020 Jun

REPOSITORIES: biostudies-literature