Eyetracking-enhanced VEP for nystagmus.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
20 Dec 2023
20 Dec 2023
Historique:
received:
22
08
2023
accepted:
19
12
2023
medline:
22
12
2023
pubmed:
22
12
2023
entrez:
22
12
2023
Statut:
epublish
Résumé
Visual evoked potentials (VEPs) are an important prognostic indicator of visual ability in patients with nystagmus. However, VEP testing requires stable fixation, which is impossible with nystagmus. Fixation instability reduces VEP amplitude, and VEP reliability is therefore low in this important patient group. We investigated whether VEP amplitude can be increased using an eye tracker by triggering acquisition only during slow periods of the waveform. Data were collected from 10 individuals with early-onset nystagmus. VEP was obtained under continuous (standard) acquisition, or triggered during periods of low eye velocity, as detected by an eye tracker. VEP amplitude was compared using Bonferroni corrected paired samples t-tests. VEP amplitude is significantly increased when triggered during low eye velocity (95% CI 1.42-6.83 µV, t(15) = 3.25, p = 0.0053). This study provides proof-of-concept that VEP amplitude (and therefore prognostic reliability) can be increased in patients with early onset nystagmus by connecting an eye tracker and triggering acquisition during periods of lower eye velocity.
Identifiants
pubmed: 38129574
doi: 10.1038/s41598-023-50367-y
pii: 10.1038/s41598-023-50367-y
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
22812Subventions
Organisme : Fight for Sight / Nystagmus Network
ID : 24NN182
Informations de copyright
© 2023. The Author(s).
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