Clinical application of the multifocal VEPs.

Purpose: To determine whether visual field defects can be detected by the multifocal VEP technique.

Methods: Multifocal VEPs were elicited by a pseudorandom binary m-sequence stimulus (VERIS II). The stimulus was a dartboard-like pattern of 61 sectors, and the luminance of each sector alternated between white and black.

[Two cases of digitalis toxicity with reversible and severe decrease of visual acuity].

Background: We performed electrophysiologic tests on two patients with digitalis toxicity who first had photophobia and xanthopsia and revealed reversible reduced visual acuity and binocular central scotoma.

Cases: The patients were a 72-year-old male and a 54-year-old male who had symptoms of digitalis toxicity.

Findings: The corrected visual acuity was severely decreased during digitalis toxicity, 0.