Figure 2: Graphic representation of the normalized pupillary size (NPS). NPS to 3 successive blue light exposures of 30 seconds each. The baseline pupil size is represented as a dotted line, and extrapolated throughout the graph. The summed pupillary response to light stimulus (area under the curve, AUC) is shown in grey for the first reference and third test light stimulus. R=reference blue light stimulus and T=test blue light stimulus.