Abstract
Occipital lobe lesions usually cause congruent homonymous visual field defects of both eyes. The authors describe a patient with a right occipital lobe infarction, presenting with a small paracentral visual field defect of only the left contralateral eye. Repeated perimetry showed no evident visual field defect in the right eye. A definite explanation for the remarkable discon-gruence is lacking, but several mechanisms are proposed.