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Rehabilitation Practice and Science

Translated Title

右枕葉腦梗塞病患之視覺評估

Abstract

Purpose: This study describes a patient with multiple visual impairments following right occipital infarction in the posterior cerebral artery (PCA) territory. The earliest stage of cortical processing of visual information occurs in the occipital lobe, so damage to this lobe causes not only visual field deficits but also other forms of visual problems. However, few cases of this sort have previously been reported in the literature. casereport: A 54-year-old female suffered from a progressive throbbing headache over the right occipital area for 2 weeks. Blurred vision and left hemianopia were found, and brain magnetic resonance imaging revealed cerebral infarction over the right posterior cerebral artery territory, mainly over the right occipital lobe. Advanced assessment in basic and high levels of visual function was arranged to confirm her visual complaints. Several types of assessment of visual function revealed not only visual field defects but also impairments in visual acuity, color vision, contrast sensitivity function, and stereo vision. In addition, deficits in visual attention test were also observed, mainly in divided and selective attention, which cannot only be explained by impaired visual deficits. Conclusion: In this case, defining visual impairment by visual fields did not present the whole impact of occipital stroke on the visual function and functional vision. Deficits in visual acuity, color vision, contrast sensitivity, stereo acuity, and visual attention were associated with visual cortex lesion. In terms of visual rehabilitation, there is a need for comprehensive visual assessment of patients with occipital stroke.

Language

English

First Page

191

Last Page

200

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