The results of this research clearly indicate that a person's ability to discriminate a moving target cannot be predicted adequately from his static acuity and that the adequacy of this prediction decreases as the speed of the moving target increases. The exact nature of those factors other than static acuity that influence dynamic acuity are not yet knows, but it is probable that they involve the efficiency of the entire aculo-motor system. No relationship was found between dynamic visual acuity (DVA) and either critical flicker frequency or lateral phoria (ACA ration). Also, the small number subjects in the higher age brackets makes impossible a generalization as to the effects of age on DVA performance. Finally, the results suggest a consistent and significant difference in performance between male and female subjects the latter performing less adequately. It is suggested that testing of a large number of additional subjects of both sexes and of all ages will save to correct the several inconsistencies appearing in these results, but it is not expected that the basic conclusions will be significantly altered. Once having established DVA as a relatively independent, reliable measure of visual ability, the next step becomes the study of the relationship between DVA and performance in a variety of tasks where discrimination of moving objects plays a key role, such as in driving, flying, ball playing and the like. Studies are currently underway toward this end.
Abstract