Transient visual evoked potential (TVEP) has been used as one of the valuable diagnostic tool in clinical environment. Various types of analyze have been performed on TVEP recordings for identifying diagnostically significant information. Conventional methods of detection of visual anomalies, based on TVEP require long periods of testing and averaging. Hence the problem of patient fatigue affects the accuracy of the results. This paper presents an approach to analysis TVEP latency using spectral components. This new approach was successfully tested on 300 normal and 450 abnormal subjects with certain disorders to identify the change in latency. © 2006 JD.