Patent Document ID: 4838681
Application ID: 07046459
Patent Status: 1

Claim One:
1. An automated system for determining the existence of temporary neurological impairment from alcohol, said system comprising: (a) means for stimulating a predetermined pattern of eye movement in a subject to be evaluated for said impairment, said pattern including a slowly moving stimulus for a portion thereof to stimulate pursuit eye movement in the subject, (b) means for detecting eye movement in a subject observing said means for stimulating eye movement, said detecting means providing an electrical output signal in response to said movement, (c) processor means for receiving said electrical output signal, said processor means further including, (i) means for sampling the output signal to obtain a series of successive eye positions, (ii) means for converting said successive eye positions to data representing eye movements, (iii) means for analyzing said data by direction, duration, and amplitude to categorize said eye movements and to differentiate between saccadic movements, pursuit movements and fixations, (iv) means for comparing the number and placement of saccadic eye movements with respect to stimulated pursuit movements to diagnose the existence of the neurological impairment, (d) output means for enabling display of said diagnosis.