A Comparison of the RETeval Sensor Strip and DTL Electrode for Recording the Photopic Negative Response.

ABSTRACT:

Purpose

To compare the RETeval sensor strip and Dawson-Trick-Litzkow (DTL) electrodes for recording the photopic negative response (PhNR) using a portable electroretinogram (ERG) device in eyes with and without glaucoma.

Methods

Twenty-six control and 31 glaucoma or glaucoma-suspect participants were recruited. Photopic ERGs were recorded with sensor strip and DTL electrodes in random order using the LKC RETeval device. Stimuli consisted of brief, red flashes (1.7 cd.s/m²) on a blue background (photopic 10 cd/m²). The PhNR amplitude was measured from baseline to trough and also expressed as a ratio over the b-wave amplitude.

Results

The sensor strip-recorded PhNR amplitude was significantly attenuated (mean ± standard deviation [SD], 4.8 ± 2.1 vs

SUBMITTER: Tang J 

PROVIDER: S-EPMC6314057 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature