Blinking lights can hurt your head?

  1. I was wondering, I have heard that watching a blinking light can give you a head ack and a seizure. Why does that happen because our computer screens and tvs, are just blinking lights. They blink at about 60-80 times a second.
  2. jcsd
  3. Moonbear

    Moonbear 12,266
    Staff Emeritus
    Science Advisor
    Gold Member

    Blinking lights don't give you seizures, but they can INDUCE a seizure in someone with a pre-existing seizure disorder.
  4. russ_watters

    Staff: Mentor

    They can also hurt your eyes, but I'm not exactly sure why. It could be due to persistence of vision and your brain's attempt to deal with the fast oscillation. And it is frequency dependent, and different from person to person, so not everyon experiences it with computer monitors.
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