MacCana F, Bhargava S K, Kulikowski J J
Ophthalmic Physiol Opt. 1983;3(1):55-60.
The diagnostic application of averaged visual evoked potentials (VEPs) is illustrated in the investigation of hysterical amblyopia and multiple sclerosis. Averaged VEPs elicited either by a flash of light or a presentation of a grating lasting 100 ms were recorded from the occiput of patients. All the VEPs in hysterical amblyopia were normal. In multiple sclerosis the flash VEPs looked normal for both eyes, whereas the VEPs elicited by grating (2 and 5 c/deg) showed an increase in the latency of the first positive wave, again for both eyes. After physical exercise the VEPs from the right eye were dramatically reduced in amplitude (Uhthoff's sign).
平均视觉诱发电位（VEP）的诊断应用在癔症性弱视和多发性硬化症的研究中得到了体现。从患者枕部记录由闪光或持续100毫秒的光栅呈现所诱发的平均VEP。癔症性弱视患者的所有VEP均正常。在多发性硬化症中，双眼的闪光VEP看起来正常，而由光栅（2和5周/度）诱发的VEP显示，双眼第一个正波的潜伏期均增加。体育锻炼后，右眼的VEP振幅显著降低（Uhthoff征）。
