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Related Experiment Videos

Roving lateral eye movements in coma. A clinical-pathological study.

A Brusa, M P Firpo, A Piccardo

    Italian Journal of Neurological Sciences
    |September 1, 1984
    PubMed
    Summary

    This study describes a unique roving eye movement pattern, ping-pong gaze, observed in five comatose patients with severe brain injuries. This specific eye movement involves the eyes returning to the midline after reaching an extreme, a finding previously noted by Reynard et al.

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    Area of Science:

    • Neuroscience
    • Clinical Neurology

    Background:

    • Deep coma patients with extensive supratentorial lesions present complex neurological signs.
    • Understanding specific ocular motor abnormalities is crucial for diagnosing and localizing brain damage.

    Observation:

    • Five patients in deep coma exhibited a distinct form of roving lateral eye movements.
    • This movement pattern, termed ping-pong gaze, involved eyes moving to an extreme and then returning to the midline.

    Findings:

    • The observed ping-pong gaze is characterized by a unique to-and-fro ocular motion towards the midline.
    • This specific roving eye movement was associated with extensive supratentorial lesions.

    Implications:

    • This finding contributes to the understanding of ocular motor disturbances in severe brain injury.

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  • The ping-pong gaze may serve as a specific clinical sign for certain types of supratentorial lesions.