Right hemifield alexia without hemianopia
A. Castro-Caldas and V. Salgado
We studied a 54-year-old man who suffered a stroke in the
visual-association areas of the left hemisphere. He showed no right-sided
visual field defect and results of a neuropsychologic examination were
normal except for his performance in several tasks presented to the right
visual field. Naming of drawings was normal in both hemifields but reading
of letters, words, digits, and arithmetic symbols was defective in the
right field. We believe that the lesion in the visual association areas of
the left hemisphere that did not interrupt interhemispheric connections
disconnected the primary visual areas from temporoparietal areas of the
left hemisphere, affecting reading.
