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Can the dim light cause pupil to constrict?

I recently found my pupils are smaller than usual and I'm often on my computer with the light off.Is the darkness mixed with a bright screen caused it?
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Answers (2)

  • Austin shelley


    No, the dim light and long time using computer can make your eyes strain or fatigue, but is irrelevant to pupil constrict. Work under light and decrease the time of using computer would be good for your vision.
  • Striker


    Dim light will make your pupil expand not constrict.Working on a computer too long will just make your eyes get stressed, but it has nothing to do with your pupil.