Computer oculography (eye-tracking) technologies make it possible to effectively study the work of the human oculomotor system in the operator's activity in the man-machine system. The data obtained in this way helps to increase the system efficiency, especially in conditions of extreme activities associated with vital and emotional stress at a high cost of error. Within the process of the interface ergonomic design of the radar complex for detecting and tracking, the features of the human oculomotor system are considered when working with group targets.