HP_0000649 (Abnormality of visual evoked potentials) can be described as follows. An anomaly of visually evoked potentials (VEP), which are electrical potentials, initiated by brief visual stimuli, which are recorded from the scalp overlying the visual cortex. Also known as: Abnormal vision evoked potentials, Abnormal visual evoked potential, Abnormal visual evoked responses, Abnormal visual-evoked potentials, VEP abnormalities.