Since the time of Javal, it has been well established that normal reading eye movement patterns have 3 principal components: (1) small saccades that move the eyes from word to word, (2) large saccades that return the eyes to the beginning of the next line, and (3) fixation pauses between each saccade for information processing.
We discuss the vision analysis results and show the quantitative reading eye movement records, measured with the infrared photoelectric method, of 5 patients examined in the Neuro-optometry Clinic. The reading records showed a wide variety of behavior: 1 patient performed normal reading movements, 1 “slow reader” manifested an excessive number of fixations as well as extended fixational durations, another “slow reader” only exhibited an excessive number of fixations, a patient with dyslexia performed backward reading movements, and 1 patient exhibited nystagmus superimposed upon the reading pattern.
* Submitted September 5, 1975. This work was partially supported by NIH USP Training Grant No. 5-T01-EY00076-04 to K. C., A. T. B., and R. K., and an Auxiliary to the American Optometric Association Research Grant to K. C.
† Optometrist, O.D., graduate student.
‡ Bioengineer, Ph.D.
§ Bioengineer, M.S., graduate student.
∥ Neurologist, Bioengineer, M.D., Member of Faculty.
AUTHOR'S ADDRESS: Kenneth Ciuffreda University of California School of Optometry Berkeley, California 94720
© 1976 American Academy of Optometry