The Effect Of Alcohol On Eye Movements.

In this study, pursuit eye movements of four volunteer subjects were recorded with an infrared eye movement monitor under conditions similar to the National Highway Traffic safety Administration field sobriety test . These recordings were then analyzed to determine the effect of different blood alcohol concentrations (0- 0. 8%) on pursuit eye movements . These blood alcohol concentrations were measured with a portable breath tester that is currently being used today by the NHTSA . The effect of different target velocities ( 10-45
degrees/sec) on pursuit eye movements at specific blood alcohol concentrations was also determined from these recordings. Finally, the angle of onset of horizontal gaze nystagmus at different blood alcohol concentrations was determined by direct observation on a perimeter arc.