title: Altitudinal hemianopia caused by occipital infarctions. Clinical and computerized tomographic correlations.
abstract: Two patients with altitudinal homonymous hemianopia caused by bilateral occipital infarctions were studied. Their clinical-computerized tomographic correlations showed the anatomic representation of the superior and inferior visual fields in the lower and upper banks of the calcarine fissure, respectively. The patient with the superior-field defect was unusual because he retained normal color vision and facial recognition abilities, despite having bilateral lesions that have classically produced central achromatopsia and prosopagnosia.
mesh_terms: D000368:Aged; D002544:Cerebral Infarction / Q000150:complications / Q000000981:diagnostic imaging* / Q000503:physiopathology; D003118:Color Perception; D005260:Female; D006212:Hallucinations / Q000209:etiology; D006423:Hemianopsia / Q000000981:diagnostic imaging* / Q000209:etiology / Q000503:physiopathology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009778:Occipital Lobe; D014057:Tomography, X-Ray Computed; D014786:Vision Disorders / Q000209:etiology; D014794:Visual Fields