Fig. 5

Recovery time during each of nine light conditions (mean + standard error of mean). Recovery time denotes the time (s) until recovery to 15 % pupil constriction after exposure to pulsed light. The main effects of irradiance and wavelength on recovery time was significant (p < 0.01), and the interaction of irradiance and wavelength was also significant (p < 0.05); therefore, one-way repeated measures ANOVA was applied. The main effects of wavelength on recovery time under each 10, 15, and 20 μW/cm²irradiance condition were all significant (p < 0.05, p < 0.05, and p < 0.01, respectively). The multiple comparisons clarified that the recovery of pupillary constriction during exposure to the highest irradiance of simultaneous exposure to blue and green (B20 + G20) light had a tendency (p = 0.073) to be longer than during blue light (B20). ^† p < 0.1, *p < 0.05, **p < 0.01