Vergence Endurance Test: A Pilot Study for a Concussion Biomarker.
concussion biomarker
objective concussion metric
post-concussion syndrome
vergence distractors
vergence eye movements
Journal
Journal of neurotrauma
ISSN: 1557-9042
Titre abrégé: J Neurotrauma
Pays: United States
ID NLM: 8811626
Informations de publication
Date de publication:
15 07 2019
15 07 2019
Historique:
pubmed:
5
3
2019
medline:
21
10
2020
entrez:
5
3
2019
Statut:
ppublish
Résumé
The Vergence Endurance Test (VET), a quantitative and objective eye movement assessment, was utilized to differentiate control from concussed subjects. Nine symptomatic concussed (2 male; 30.8 ± 11 years) and 9 asymptomatic control (6 male; 25.1 ± 1.4 years) subjects participated in the VET. Symmetrical disparity vergence step targets were presented with and without visual distractors. A masked data analyst measured vergence latency, peak velocity, response amplitude, settling time, and the percentage of trials which contained blinks. A Binocular Precision Index (BPI) and a Binocular Accuracy Index (BAI) were calculated to quantify the changes that occur in the vergence parameters over the duration of the VET. Convergence and divergence peak velocity, divergence response amplitude, the percentage of trials that contained blinks during the transient portion of the response, and the BAI were significantly (
Identifiants
pubmed: 30829134
doi: 10.1089/neu.2018.6075
pmc: PMC6653808
doi:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, U.S. Gov't, Non-P.H.S.
Langues
eng
Sous-ensembles de citation
IM
Pagination
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