No abstract

What effects ability to follow visually a moving target? How about static acuity? Using equipment, including slides, to study static acuity, with 236 Ss, it was concluded that this does not predict it. "The exact nature of those factors other than static acuity that influence dynamic acuity are not yet known, but it is probable that they involve the efficiency of the entire oculo-motor system." From Psyc Abstracts 36:01:3LK11B.

Information on vision test performance and personal and driving habits was obtained for 17,769 California drivers and was compared with their driving records, i.e., accidents and convictions for traffic citations. Of the vision tests evaluated, dynamic visual acuity is by far the one most closely related to driving record, followed by static visual acuity, visual field, and “night vision.” The results show that mileage, age, and sex are also important factors influencing driving record, and that conviction experience is a much more stable driving record variable than accident experience.

Lateral nasal and temporal visual field measurements were obtained by means of a screening perimeter for nearly 17300 Ss, ages 16-92. The major finding; are: (a) temporal and total fields are maximum to about age 35, after which field constricts progressively with advancing age, (b) nasal fields increase to a maximum occurring about age 35 or 40, after which a progressive decline takes place, and (c) females consistently demonstrate slightly larger visual fields than men. Possible interpretations for these and other findings are presented, and additional research is suggested to explain some of the relationships obtained in the study.