Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Ocular defects in photosensitive epilepsy.

Ebere C Anyanwu1, John Ehiri

  • 1Cahers Neurosciences Research Inc., 8787 Shenandoah Park Drive, Suite 122, Conroe, TX, USA. ebereanyanwu@msn.com

Thescientificworldjournal
|April 24, 2004
PubMed
Summary

Photosensitive epilepsy patients often have hidden ocular defects like visual field loss and optic nerve issues. Visual-evoked potential (VEP) testing is a valuable diagnostic tool for these conditions, even when they aren't outwardly apparent.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

From nutritional optimization to consumer acceptance: sensory and nutritional evaluation of culturally adapted recipes for type 2 diabetes in Benin.

Frontiers in nutrition·2026
Same author

Exploring HIV prevention preferences among key populations in Uganda: A qualitative study.

PloS one·2026
Same author

Translation, Cultural Adaptation, and Psychometric Validation of the McMaster Family Assessment Device's General Functioning Subscale: A Cross-Sectional Study Among African Adults With Type 2 Diabetes.

Journal of diabetes research·2026
Same author

Barriers and enablers to scaling implementation of Trauma Recovery Center model of care: a protocol for scoping review.

BMJ open·2026
Same author

Development of a culturally tailored medical nutrition therapy to improve dietary adherence in type 2 diabetes in Benin: an ORBIT model-based protocol.

Frontiers in nutrition·2026
Same author

Perceptions of Obesity and Weight-Related Behaviors Among Adults With Type 2 Diabetes in Benin.

Journal of nutrition education and behavior·2026

Area of Science:

  • Neurology
  • Ophthalmology
  • Medical Diagnostics

Background:

  • Photosensitive epilepsy (PSE) patients experience seizures triggered by light, leading to photoparoxysmal response (PPR).
  • PPR can cause visual system dysfunction and ocular defects, which are not always superficially evident.
  • The prevalence and nature of PPR-related ocular defects in PSE patients require further investigation.

Purpose of the Study:

  • To investigate and document ocular defects in photosensitive epilepsy patients using visual-evoked response (VER).
  • To determine the magnitude and distribution of ocular abnormalities in a cohort of PSE patients.
  • To assess the diagnostic utility of VEP in identifying ocular defects associated with PSE.

Main Methods:

  • Studied 212 patients with photosensitive epilepsy (51% female, age 1-46).

Related Experiment Videos

  • Utilized electroencephalography (EEG) and visual-evoked potential (VEP) to analyze ocular defects.
  • Correlated VEP changes with specific ocular abnormalities, considering age and sex.

    • Main Results:

    • Identified major ocular defects including visual field defects, optic nerve abnormalities, nystagmus, cataracts, amblyopia, and migraine.
    • VEP analysis revealed prevalent optic atrophies, visual defects, optic neuritis, chiasmal compression, nystagmus, cataracts, and amblyopia.
    • Ocular defects in PSE patients may not be overtly apparent but are detectable via VEP.

    Conclusions:

    • VEP is a valuable diagnostic tool for identifying ocular defects in photosensitive epilepsy patients.
    • Ocular abnormalities are prevalent in PSE, even when not clinically obvious.
    • Findings challenge previous assumptions about VEP's limited value in epilepsy diagnosis.