Claro FaceMouse
Software that uses a webcam for cursor control by facial movements

ERICA (Eye-gaze Communication Computer System)
Eye-gaze Response Interface Computer Aid

Headmouse Extreme
A wireless, infrared device that controls the PC by tracking the users head movements

Lomak
A head or hand pointer that controls functions of a computer

Sensory Eye-FX
Software designed to teach eye-gaze access skills

SmartNAV 4
Hands-free mouse alternative with movement sensor

Tobii CDot Tracker
Acts as a mouse by tracking movements of a dot placed on the head or glasses - for Tobii C devices

Tobii PCEye
A mouse alternative using eye movement