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[A differential diagnostic test for optic neuritis].

W Heider, I Gottlob

    Klinische Monatsblatter Fur Augenheilkunde
    |May 1, 1987
    PubMed
    Summary
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    Cold drinks temporarily improved vision in most acute optic neuritis patients by enhancing nerve fiber conductivity. However, previous optic neuritis or other optic nerve diseases showed mixed results, with some patients experiencing vision deterioration.

    Area of Science:

    • Ophthalmology
    • Neuroscience
    • Physiology

    Context:

    • Optic neuritis, an inflammation of the optic nerve, can cause significant visual impairment.
    • Understanding factors that influence optic nerve function is crucial for managing visual disorders.

    Purpose:

    • To investigate the effect of induced hypothermia via cold drinks on visual field function in patients with optic neuritis.
    • To explore the potential mechanisms behind visual field changes in response to lowered body temperature.

    Summary:

    • A study involving 18 patients with acute optic neuritis found that consuming cold drinks led to significant visual field improvements in 14 cases, assessed using the Octopus 201 automatic perimeter.
    • In contrast, patients with a history of optic neuritis (11 patients, 17 eyes) showed improvement in only 8 eyes, with 9 eyes experiencing deterioration.

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  • A slight visual field deterioration was observed in patients with other optic nerve diseases and healthy subjects after body temperature reduction.
  • Impact:

    • The findings suggest that temporary hypothermia may reversibly enhance the conductivity of demyelinated nerve fibers, offering a potential therapeutic avenue for acute optic neuritis.
    • This research highlights the temperature-dependent nature of nerve conduction in demyelinating conditions and its impact on visual function.