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Related Experiment Videos

VER in optic neuritis.

V Menon, H Kumar, P Prakash

    Indian Journal of Ophthalmology
    |October 1, 1989
    PubMed
    Summary
    This summary is machine-generated.

    Visual evoked responses (VER) help monitor optic neuritis. Implicit time is a more reliable indicator than amplitude for evaluating patients and tracking disease progression.

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    Area of Science:

    • Neuroscience
    • Ophthalmology

    Background:

    • Optic neuritis is an inflammatory condition affecting the optic nerve.
    • Accurate assessment of visual pathway function is crucial for diagnosis and management.

    Purpose of the Study:

    • To evaluate the utility of visual evoked responses (VER) in patients with optic neuritis.
    • To determine the most effective VER parameters for assessing disease severity and progression.

    Main Methods:

    • A prospective study involving 27 patients with optic neuritis.
    • Utilized checkerboard pattern reversal and flash stimuli for VER recording.
    • Compared VER parameters (implicit time, amplitude) with clinical findings.

    Main Results:

    • VER recording with a 30-minute check size was most consistent.

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  • Flash evoked VER was valuable in severe visual pathway disruptions.
  • Implicit time was a more reliable indicator than amplitude for evaluation.
  • Neither implicit time nor amplitude directly correlated with visual acuity changes.

    • Conclusions:

    • VER recording is beneficial for the serial follow-up of optic neuritis patients.
    • VER can help identify previous optic neuritis attacks.
    • Implicit time is a more dependable metric than amplitude for assessing optic neuritis.