Visual evoked potentials in occipital lobe lesions
L. J. Streletz, S. H. Bae, R. M. Roeshman, N. J. Schatz and P. J. Savino
Recording of visual evoked potentials (VEPs) to pattern reversal is
considered to be a reliable diagnostic procedure for examining patients
with anterior visual pathway lesions (optic nerves and chiasm). Less
consistent results have been reported in studies of more posterior lesions.
The VEPs were recorded in 20 patients with occipital lobe lesions. A
maximal VEP response (P94) was recorded at the scalp electrodes situated
over the involved occipital lobes and contralateral to the hemianoptic
visual field defect, indicating a positive correlation of unilateral
occipital lobe lesions, homonymous visual field loss, and the VEP
abnormality.
