A9-year-old boy presented with headache, vomiting, and leftward eye gaze deviation. On examination, left homonymous hemianopia, horizontal nystagmus, and anisocoric pupils were noted. Brain CT disclosed symmetric calcification in basal ganglia (figure A). Blood examination showed lactic academia. Further MRI revealed right occipito-temporo-parietal cortical hyperintensities (figure, B and C). M...

Objectives—This study examined the scanpaths of patients with homonymous hemianopia while viewing naturalistic pictures in their original and also spatially filtered forms. Features of their scanpaths with respect to various saccade and fixation parameters were examined to determine whether they develop compensatory eye movement strategies. The eVects of various lesion parameters including loca...

PURPOSE To describe a novel method for prism correction of hemianopia that provides field-of-view expansion in a convenient and functional format and to evaluate initial clinical application. METHOD To expand the upper quadrant of the field, a high power prism segment (30-40delta) is placed base-out across the upper part of the spectacle lens, on the side of the loss, at about the level of th...

Sturge-Weber syndrome, encephalotrigeminal angiomatosis, is a neurocutaneous disorder characterized by a facial cutaneous vascular nevus, seizures, mental retardation, hemiplegia, homonymous hemianopia, and buphthalmos or glaucoma (1). The clinical findings are related to vascular anomalies of the face, ocular choroid, and leptomeninges. The imaging findings in Sturge-Weber syndrome may include...

We report on a patient, with a CT-verified low density lesion in the right parietal area, who exhibited not only deficits in left conceptual space, but also in reading, writing, and the production of speech. He presented with a left homonymous hemianopia, tactile inattention, and dysphasia that quickly resolved, leaving a left-sided inattention and less marked dysphasia. Several language tasks ...

Twenty-nine right handed patients were examined neurologically before and immediately after each of 62 unilateral ECTs to the dominant and non-dominant hemispheres. Most convulsions were followed by signs of transitory neurological dysfunction referable to the treated hemisphere. These signs included deep tendon reflex asymmetry, hemiparesis, tactile and visual inattention, and homonymous hemia...

OBJECTIVES This study examined the scanpaths of patients with homonymous hemianopia while viewing naturalistic pictures in their original and also spatially filtered forms. Features of their scanpaths with respect to various saccade and fixation parameters were examined to determine whether they develop compensatory eye movement strategies. The effects of various lesion parameters including loc...

Patients with damage to primary visual cortex can sometimes direct actions towards 'unseen' targets located in areas of the visual field that are deemed 'blind' on the basis of static perimetry tests. Here, we show that a patient with a complete right homonymous hemianopia after a V1 lesion remains sensitive to the width of objects presented in her blind field but only when reaching out to gras...

N Engl J Med 2005;353:2361-72. Copyright © 2005 Massachusetts Medical Society. A 38-year-old man notes abrupt loss of vision in his right visual field while reading. He has no significant medical history and reports that he neither smokes nor uses alcohol or illicit drugs. Physical examination reveals right homonymous hemianopia but no other abnormalities. Magnetic resonance imaging reveals acu...

TOPICAL DIAGNOSIS OF OPTIC CHIASMAL LESIONS TOPICAL DIAGNOSIS OF RETROCHIASMAL VISUAL FIELD Visual Field Defects DEFECTS Etiologies of the Optic Chiasmal Syndrome Topical Diagnosis of Optic Tract Lesions Masqueraders of the Optic Chiasmal Syndrome Topical Diagnosis of Lesions of the Lateral Geniculate Body Pathophysiology of the Optic Chiasmal Syndrome Topical Diagnosis of Lesions of the Optic ...