<div class="htmlview paragraph">Human vision is a vast field of scientific study. Although the automotive engineer does not need to know very much about this topic in depth, there are some basic things he should be aware of, particularly if he is concerned with headlights, signal lights, mirrors, the instrument panel, and the design of the vehicle body.</div> <div class="htmlview paragraph">This paper will briefly touch only upon some of the main facts of human vision pertinent to an automotive engineer's needs. There will be some emphasis on the application of some of these facts, and on the methodological problems of practical testing and evaluation of vision-related vehicle features.</div>