There were adapted the stream commands (SSE2) for videooculography measuring methods of eyes movements in this activity (an analysis by straight lines and an analysis by a circle). By their assistance the time of detection methods of eye pupil centre coordinates was accelerated. The algorithm of eye pupil centre detection was presented in which there were used the methods of analysis by straight lines and analysis by circles. There were presented stream commands (SSE2) and the methods of their use. After investigetion it was determined that the time of eye pupil centre coordinates by assistance of stream commands has been accelerated.