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Related Experiment Videos

Hysterical hemianopia. The 'missing half' field defect.

J R Keane

    Archives of Ophthalmology (Chicago, Ill. : 1960)
    |May 1, 1979
    PubMed
    Summary
    This summary is machine-generated.

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    Hysterical hemianopias are rare visual disturbances often linked to other symptoms. Testing reveals inconsistent visual field results, quickly identifying the functional, non-organic nature of the vision loss.

    Area of Science:

    • Ophthalmology
    • Neuroscience
    • Psychiatry

    Background:

    • Hysterical hemianopias are uncommon functional visual disorders.
    • They often present alongside other lateralized neurological complaints.

    Observation:

    • A frequent pattern involves reduced vision in one eye.
    • Testing reveals ipsilateral hemianopia in the affected eye.
    • The other eye shows full visual fields.

    Findings:

    • Binocular testing demonstrates a complete hemianopia towards the affected side.
    • Inconsistencies between monocular and binocular visual field tests are key.
    • These discrepancies highlight the functional, non-organic basis of the visual loss.

    Implications:

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    • This pattern aids in diagnosing functional visual disorders.
    • It underscores the importance of careful clinical testing in ophthalmology.
    • Understanding these presentations is crucial for accurate neurological and psychiatric assessment.