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Visual field defects in obstructive hydrocephalus

P R Humphrey, I F Moseley, R W Russell

    Journal of Neurology, Neurosurgery, and Psychiatry
    |July 1, 1982
    PubMed
    Summary
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    Enlargement of the third ventricle can cause visual field defects, including scotoma and hemianopia. These defects are often linked to aqueduct stenosis or, less commonly, cerebellar tumors.

    Area of Science:

    • Neurology
    • Ophthalmology
    • Neuroimaging

    Background:

    • Third ventricular enlargement is a rare cause of visual field defects.
    • Aqueductal stenosis and cerebellar tumors can lead to increased intracranial pressure affecting visual pathways.

    Purpose of the Study:

    • To describe visual field defects in patients with third ventricular enlargement.
    • To investigate the underlying causes and patterns of visual field loss.

    Main Methods:

    • Case series analysis of four patients with third ventricular enlargement.
    • Clinical examination including visual field testing.
    • Neuroimaging (MRI/CT) to identify the cause of ventricular enlargement.

    Main Results:

    Related Experiment Videos

  • All four patients presented with visual field defects.
  • Three cases were attributed to aqueduct stenosis.
  • One case involved a left cerebellar hemisphere tumor.
  • Observed defects included unilateral scotoma, bilateral scotomata, and incongruous bitemporal hemianopia.

    • Conclusions:

    • Third ventricular enlargement is a significant cause of diverse visual field defects.
    • Aqueduct stenosis is a primary etiological factor.
    • Cerebellar tumors should be considered in the differential diagnosis.