Blue-Yellow VEP with Projector-Stimulation in Glaucoma.

ABSTRACT:

Background and aim

In the past, increased latencies of the blue-on-yellow pattern visually evoked potentials (BY-VEP), which predominantly originate in the koniocellular pathway, have proven to be a sensitive biomarker for early glaucoma. However, a complex experimental setup based on an optical bench was necessary to obtain these measurements because computer screens lack sufficient temporal, spatial, spectral, and luminance resolution. Here, we evaluated the diagnostic value of a novel setup based on a commercially available video projector.

Methods

BY-VEPs were recorded in 126 participants (42 healthy control participants, 12 patients with ocular hypertension, 17 with "preperimetric" glaucoma, and 55 with perimetric glaucoma). Stimuli were created with a video projector (

SUBMITTER: Dussan Molinos L 

PROVIDER: S-EPMC8913566 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature