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ExpressEye is used to measure the saccadic movements of the eye and classify a subject's performance in different tasks as normal or abnormal. Subjects are patients above the age of 6 years with suspicion of problems in dynamic vision and/or optomotor control. ExpressEye can be used in any case of problems in the optomotor domain. The measured horizontal eye movements of a person made in response to generated stimuli are analysed to nontonial cyc inovential or a person's fixation and reflexive and voluntary eye movement control.

ExpressEye measures horizontal eye movements and analyses the fixation quality, direction and reaction time of fast eye movements. The device consists of a head band, which carries light sources for visual stimuli, an amplifier, and infrared light emmitting/receiving elements. A hand held processor controls the stimuli and analyses the eye movement signals. Optional the user can transfer the data to a personal computer.