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(Investigative Ophthalmology and Visual Science. 1971;10:724-732.)
© 1971 by The Association for Research in Vision and Ophthalmology, Inc.

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Dynamic Measurements of Horizontal Eye Motion

I. Acceleration and Velocity Matrices

STEPHEN J. FRICKER 1

1 Howe Laboratory of Ophthalmology, Massachusetts Eye and Ear Infirmary, Boston, Mass.

A method is described for measuring the velocity and acceleration dynamics of horizontal eye motion. The actual test procedure is designed so as to give average data during saccadic motion. The values obtained for the temporal and nasal velocities and accelerations of each eye, under conditions of fixation or occlusion, are presented in matrix form for ease of examination. Results are given for a group of normal subjects, and certain characteristics of the matrices are discussed. Two specific examples are discussed in some detail. One concerns an evident strabismus problem, used to demonstrate that the numerical results are in accord with the clinical impression. The second case, of a patient with probable multiple sclerosis, is used to illustrate how these numerical data provide additional diagnostic clues.

Key Words: horizontal eye motion • saccades • tracking • velocity • acceleration • esotropia • internuclear ophthalmoplegia

Submitted on April 12, 1971
Accepted on July 7, 1971






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