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Arch Neurol. 1998;55:1285-1286.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

IN THIS issue of the ARCHIVES, River et al¹ describe 6 patients with an unusual and interesting phenomenon called reversal of vision (RVM). This is a rare transient form of visual metamorphopsia in which patients see things upside down or rotated 180° in the coronal plane. Five of the 6 patients in the study had parietal lobe lesions, 4 had a brainstem lesion, and 5 had an ocular motility disorder. Although these are interesting observations, the brain mechanisms that account for these clinical phenomena have not been entirely elucidated.

Sensory experience may be directly altered by lesions of the nervous system causing conditions such as hemispatial neglect, hemianopia, achromatopsia, and simultanagnosia. Sensory experience may be altered by aberrant physiological conditions, such as migrainous visual phenomena induced by spreading depression of Leão. Sensory experience may also be altered by physical phenomena in the world around us, such as the appearance of . . . [Full Text of this Article]

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Reversal of Vision Metamorphopsia: Clinical and Anatomical Characteristics
Yaron River, Tamir Ben Hur, and Israel Steiner
Arch Neurol. 1998;55(10):1362-1368.
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