The novel technology, which is dedicated to assist the person with disabilities, is presented in the work. It is the discrete eye tracking system which recognizes the users command from voluntary controlled eye motion. The user wears the head mounted device, which consist of glasses with fixed on it video camera. The system was tested with three on-line applications. First - the control of the mobile robot in the maze, second, application is the text writing program ??EyeWriter?? and third computer game. Over 25 commands per second can be generated using presented eye tracking system.