Fitness impairment tester
DCFirst Claim
1. A fitness impairment tester comprising:
- pupil imaging optics and focusing an image of the subject'"'"'s pupil on an image plane;
pupil diameter measurement means for measuring diameter of and changes in the image of the subject'"'"'s pupil on said image plane in response to light stimuli;
an eye tracker for tracking movements of the subject'"'"'s eye in response to moving light stimuli;
data acquisition means responsive to said pupil diameter measuring means and said eye tracking means for generating dynamic measures of pupil diameter and movements of the subject'"'"'s eye as a function of time;
a database for storing baseline data for the subject; and
a computer controlled by a stored program for controlling said light stimuli and receiving said dynamic measures of pupil diameter and movements, accessing said baseline data for the subject, and providing an output indicative of a deviation of said current measurements from said baseline data.
1 Assignment
Litigations
0 Petitions
Accused Products
Abstract
A fitness impairment tester implements a self-administered screening test to determine whether a subject is physically impaired. The tester is fully automated to respond to the entering of a subject'"'"'s personal identification on a keypad. By superposing two different colored lights as viewed through an eyepiece, the subject aligns his or her pupil on the optical axis of pupil imaging optics which focuses an image of the subject'"'"'s pupil on an image plane. The tester automatically recognizes this condition and audibly signals the subject that the test is about to begin. Light stimuli are provided to cause the pupil to change size and the eye to move. Pupil diameter measurements are made of the image of the subject'"'"'s pupil in response to on axis light stimuli. Eye tracking of the subject'"'"'s eye in response to moving light stimuli provide a measure of eye movements. The data acquired by measuring pupil diameter and saccadic movements of the subject'"'"'s eye as a function of time are compared with baseline data for the subject stored in a database, and an output indicative of a deviation of said current measurements from said baseline data is provided.
119 Citations
17 Claims
-
1. A fitness impairment tester comprising:
-
pupil imaging optics and focusing an image of the subject'"'"'s pupil on an image plane; pupil diameter measurement means for measuring diameter of and changes in the image of the subject'"'"'s pupil on said image plane in response to light stimuli; an eye tracker for tracking movements of the subject'"'"'s eye in response to moving light stimuli; data acquisition means responsive to said pupil diameter measuring means and said eye tracking means for generating dynamic measures of pupil diameter and movements of the subject'"'"'s eye as a function of time; a database for storing baseline data for the subject; and a computer controlled by a stored program for controlling said light stimuli and receiving said dynamic measures of pupil diameter and movements, accessing said baseline data for the subject, and providing an output indicative of a deviation of said current measurements from said baseline data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A method of testing fitness impairment of a subject comprising the steps of:
-
illuminating a subject'"'"'s pupil and focusing an image of the subject'"'"'s pupil on an image plane; tracking movements of the subject'"'"'s eye in response to moving light stimuli; generating measures of one or more parameters Pi of the subject'"'"'s eye as a function of time; storing baseline data for the subject in a database; controlling light stimulus means and receiving said measures of said parameters Pi ; accessing said baseline data for the subject; and providing an output indicative of a deviation of current measurements of said parameters Pi from said baseline data. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
-
Specification