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

The gold foil electrode in pattern electroretinography

T C Prager1, A M Fea, W E Sponsel

  • 1Department of Ophthalmology, Hermann Eye Center, University Texas Medical School, Houston.

Documenta Ophthalmologica. Advances in Ophthalmology
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

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

The upper extremity regional anaesthesia trifecta: three upper extremity nerve blocks for awake upper-limb surgery in a patient with a history of contralateral pneumonectomy.

Anaesthesia reports·2023
Same author

Weil's disease as a differential diagnosis of jaundice: A case report.

Revista de gastroenterologia de Mexico (English)·2022
Same author

Flexible workflows for on-the-fly electron-microscopy single-particle image processing using Scipion.

Acta crystallographica. Section D, Structural biology·2019
Same author

Abductive reasoning as a basis to reproduce expert criteria in ECG atrial fibrillation identification.

Physiological measurement·2018
Same author

[Chorioretinis sclopetaria].

Journal francais d'ophtalmologie·2018
Same author

Cold Water Immersion is Acutely Detrimental but Increases Performance Post-12 h in Rugby Players.

International journal of sports medicine·2016

Used gold foil electrodes in pattern electroretinogram testing show significantly lower amplitudes and poor reliability due to surface cracks. New electrodes are recommended for accurate electroretinogram measurements.

Area of Science:

  • Ophthalmology
  • Medical Devices
  • Neuroscience

Background:

  • Gold foil electrodes are used for pattern electroretinogram (PERG) testing.
  • Previous studies indicated large PERG amplitudes but low test-retest reliability with gold foil electrodes.

Purpose of the Study:

  • To investigate the cause of reduced PERG amplitudes and poor test-retest reliability when using gold foil electrodes.

Main Methods:

  • A three-center study involving 29 patients tested with both new and used gold foil electrodes.
  • Comparison of PERG amplitudes and coefficients of variation between new and used electrodes.
  • Light microscopy analysis of electrode surfaces.

Main Results:

  • Used electrodes (tested three times) showed a statistically significant 22% reduction in PERG amplitudes compared to new electrodes (3.78 microV vs. 2.93 microV).

Related Experiment Videos

  • The coefficient of variation increased from 30% with new electrodes to 44% with used electrodes.
  • Microscopy revealed small cracks on the surface of used electrodes, potentially affecting impedance.

    • Conclusions:

    • Repeated use of gold foil electrodes leads to surface cracks, likely caused by patient blinking.
    • These cracks result in significantly lower PERG amplitudes and compromise test-retest reliability.
    • New electrodes are crucial for accurate and reliable PERG measurements.