ISCEV Standard for clinical electro-oculography (2017 update)

International Society for Clinical Electrophysiology of Vision

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    The clinical electro-oculogram (EOG) is an electrophysiological test of the outer retina and retinal pigment epithelium (RPE) in which changes in the electrical potential across the RPE are recorded during successive periods of dark and light adaptation. This document presents the 2017 EOG Standard from the International Society for Clinical Electrophysiology of Vision (ISCEV: This standard has been reorganized and updated to include an explanation of the mechanism of the EOG, but without substantive changes to the testing protocol from the previous version published in 2011. It describes methods for recording the EOG in clinical applications and gives detailed guidance on technical requirements, practical issues and reporting of results with the main clinical measure (the Arden ratio) now termed the light peak:dark trough ratio. The standard is intended to promote consistent quality of testing and reporting within and between clinical centers.

    Original languageEnglish
    Pages (from-to)1-9
    Number of pages9
    JournalDocumenta Ophthalmologica
    Issue number1
    Publication statusPublished - 1 Feb 2017

    Bibliographical note

    "© Springer-Verlag Berlin Heidelberg 2017" carried by published version, later separate Erratum ( and Correction ( correct this to "© The Author(s) 2018
    Open Access
    This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (, which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made."


    • Arden ratio
    • Clinical electrophysiology
    • Electro-oculogram (EOG)
    • Fast oscillation (FO)
    • ISCEV Standards
    • Light adaptation
    • Light peak:dark trough ratio
    • Retinal pigment epithelium (RPE)


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