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Related Experiment Videos

A new wave (2nd c-wave) on corneoretinal potential.

T Nikara, S Sato, T Takamatsu

    Experientia
    |May 15, 1976
    PubMed
    Summary

    The novel 2nd c-wave, an on-response in electroretinography (ERG), has a long latency and follows the standard c-wave. This new wave is likely generated by the late receptor potential in the retina.

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    Area of Science:

    • Ophthalmology
    • Neuroscience
    • Physiology

    Background:

    • The electroretinogram (ERG) records retinal electrical activity.
    • The c-wave is a component of the ERG, reflecting retinal function.

    Purpose of the Study:

    • To characterize a newly identified wave in the ERG, termed the 2nd c-wave.
    • To investigate the origin and properties of this novel retinal potential.

    Main Methods:

    • Electrophysiological recordings of the human ERG.
    • Analysis of wave latency and response characteristics.

    Main Results:

    • A distinct 2nd c-wave was identified as an on-response.
    • This wave exhibits a long latency, appearing after the conventional c-wave (65-98 seconds).

    Conclusions:

    • The 2nd c-wave represents a new component of the corneoretinal potential.
    • Evidence suggests the 2nd c-wave originates from the tail of the late receptor potential in the retina.

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