SUSTAINED PUPIL LIGHT RESPONSE DURING INTERMITTENT BLUE- AND GREEN-LIGHT EXPOSURE

DOI Open Access
  • KATSUURA Tetsuo
    Graduate school of Engineering, Chiba University
  • ISHIBASHI Shogo
    Graduate school of Engineering, Chiba University Current affiliation: Mobility Service Department, Railway Business Headquarters, EAST JAPAN RAILWAY COMPANY
  • SHIMOMURA Yoshihiro
    Design Research Institute, Chiba University
  • LEE Soomin
    Center for Environment, Health and Field Sciences, Chiba University

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Other Title
  • 青色と緑色の間欠光照射に対する持続的瞳孔対光反応

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Abstract

<p>Eleven healthy young male participants were exposed to three intermittent light conditions: blue light, green light, and simultaneous exposure to blue and green light with a pulse width of 1 ms at 100 Hz. The relative pupil constriction amplitude (% pupil constriction) was measured at the 1st, 2nd, 3rd, and 7th minute from the start of light exposure. The % pupil constriction during green light exposure was significantly lower than that during both blue light and simultaneous blue and green light exposure. Interestingly, there was no significant difference in the % pupil constriction between blue light exposure and simultaneous blue and green light exposure, even though the melanopic irradiance was 1.6 times higher in the simultaneous exposure. </p>

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