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Vertical and horizontal meridian sparing in occipital lobe homonymous hemianopias
L G Gray1, S L Galetta, N J Schatz
1Department of Neurology, University of Pennsylvania Medical Center, Philadelphia 19104, USA.
Neurology
|May 5, 1998
Abstract:
We report two patients with unique homonymous hemianopias from occipital lobe infarctions. One patient had vertical meridian sparing, and the other displayed horizontal meridian sparing. MRI correlation with the visual field defects confirmed that the vertical hemianopic meridian was represented along the border of the calcarine lips, and the horizontal meridian lies at the base of the calcarine banks deep within the calcarine fissure.