Pupillary latency in chromatic high speed video-oculography

Abstract

To know characteristics of pupillary reflex are useful in medical diagnosis. In this way High Speed Videooculography (HSV) let to observe pupillary modifications in time more accurately than other video techniques. Differences till 7 ms are possible to measure with HSV in this application. The purpose of this study is to determine if there is a difference in Latency Time (LT) when pupillary reflex is stimulated with three isoluminant chromatic stimuli. The observations obtained from 15 people exhibit red color evoke a slower pupillary contraction than green and blue in a luminance level of 29 cd/m2.