Cited by 65Multiple Sclerosis Research StudiesGlaucoma and retinal disordersPeripheral Neuropathies and Disorders

Visual evoked potentials after optic neuritis: Effect of time interval, age and disease dissemination

Jones, S. J.·1993·Journal of Neurology

Abstract

Visual evoked potentials (VEPs) were compared among six groups of patients tested at various times after an episode of acute unilateral optic neuritis (ON). The incidence of abnormalities ranged from above 90% in patients tested during the first 6 months to about 70% when more than 2 years had elapsed. Compared with the acute stage (1-8 weeks), latency prolongation was almost 50% less in patients tested after 2-19 years. In the latter group, latencies were significantly correlated with the patients' age at the time of the attack. The findings confirm and extend the evidence of serial studies which shows that the shortening of VEP latency is a general phenomenon which proceeds for up to 2 years and possibly for longer in younger patients. When the patients with clinically isolated ON were compared with those who had a history of additional neurological episodes suggestive of multiple sclerosis (MS), up to 4 weeks after ON latencies were more prolonged in the MS group but between 4 and 8 weeks amplitudes were larger and between 8 weeks and 2 years latencies were significantly shorter. No significant differences were found in patients tested after more than 2 years. It is suggested that the electrophysiological deficit may initially be more severe in patients with disseminated disease, but that recovery may occur faster.

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Crossref · 10.1007/bf00874118

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  • Schizophrenia patients exhibit myelin-specific abnormalities including reduced numbers of oligodendrocytes, irregular myelin microstructure, and subnormal expression of myelin-related genes.

    “When combined with the fact that schizophrenia patients exhibit a range of myelin-specific abnormalities-including reduced numbers of oligodendrocytes, 19 irregular myelin microstructure, 20 and subnormal expression of myelin-related genes 44”

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Authors
Jones, S. J.
Affiliations
National Hospital for Neurology and Neurosurgery (GB)
Corresponding author
Jones, S. J.
Venue
Journal of Neurology
Published
1993
Volume
240
Issue
8
Pages
489-494
ISSN
  • 0012-1037 (ISSN-L)
  • 0340-5354
  • 1432-1459
OpenAlex
W2941833821
Cited by
65
References
27
Citations by year
2025: 1 · 2023: 1 · 2020: 1 · 2019: 1 · 2018: 3 · 2016: 2 · 2013: 1 · 2012: 4
FWCI
1.70
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Health Sciences › Medicine › Ophthalmology › Glaucoma and retinal disorders
  • Health Sciences › Medicine › Neurology › Peripheral Neuropathies and Disorders
Keywords
optic neuritis, visual evoked potentials, multiple sclerosis, clinically isolated syndrome, VEP amplitude, longitudinal follow-up
MeSH terms
Adolescent, Adult, Age Factors, Aged, Evoked Potentials, Visual, Female, Humans, Male, Middle Aged, Optic Neuritis, Reaction Time, Time Factors, Visual Acuity, Incidence

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