Eye movements and pupil reactions are part of the Standardized Field Sobriety Test (SFST) as well as Drug Recognitions Expert (DRE) programs. Eye Dynamics' HGN Goggle System is the a video system for enhanced observation of these physiologies. The light-weight video goggle allows for the observation of the eye on a monitor, which also video records the responses. A wireless microphone provides audio annotation. Users like the California Highway Patrol and the Southern California Research Institute find it ideal for training.
