[Changes of the visual field with cerebral tumors].

Neurosurgical material of 1,746 tumours is reviewed for the relations between operative and post mortem localization of cerebral tumours and pathological findings of isopteric perimetry; and the incidence of defects of the visual field with the different localizations of tumours is discussed. The aim was to localize the tumours as accurately as possible. At least in brain tumour patients the defect of the visual field does not allow conclusions on the level of lesions to the visual pathway. Only the superior quadranopsia is important for the temporal localization.