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[Pathological visual field and brain tumor].

J Lössner

    Psychiatrie, Neurologie, Und Medizinische Psychologie
    |May 1, 1975
    PubMed
    Summary
    This summary is machine-generated.

    Brain tumors can cause visual field defects like hemianopia. Macular sparing and incongruence are not reliable indicators for localizing these visual pathway defects in brain tumor patients.

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    Area of Science:

    • Neuro-ophthalmology
    • Neurosurgery
    • Clinical neurology

    Context:

    • Investigating the relationship between brain tumors and visual field deficits.
    • Utilizing kinetic perimetry for visual field assessment.
    • Analyzing data from 1756 neurosurgical brain tumor inpatients.

    Purpose:

    • To determine the correlation between tumor location and visual field abnormalities.
    • To assess the diagnostic value of specific visual field characteristics for tumor localization.
    • To evaluate the prevalence of visual field defects in brain tumor patients.

    Summary:

    • Visual field examinations were feasible in 80% of the 1756 neurosurgical brain tumor patients.
    • Topically localizable visual field defects (hemianopic, quadrantanopsic, scotomatous) were identified in nearly one-third of the examined patients.

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  • Key criteria for localizing homonymous hemianopia, such as macular sparing and congruence/incongruence of visual field changes, were found to be insignificant for pinpointing tumor location within the visual pathway.

    • Impact:

    • Provides insights into the neuro-ophthalmological manifestations of brain tumors.
    • Highlights the limitations of certain visual field criteria in neurosurgical tumor localization.
    • Informs clinical practice regarding the interpretation of visual field defects in the context of brain tumors.