greenLED
Flashaholic
Last night I gave myself a quasi-migraine immediately after I took a flash from an HID light. I'm calling it a quasi-migraine because it shared some of the symptoms, but it wasn't as debilitating as a "normal" migraine. It was a complete accident, BTW, I quit trying to shine lights onto myself shortly after joining CPF and getting some real lights. Anyway, I got a bad headache when a similar thing hapenned to me with an L4 a couple of weeks ago. (So much for trying not to shine lights onto myself, right?)
Does anybody know whether there's a "light intensity threshold" beyond which a light can cause headaches or trigger migraines? Also, I get headaches from using regular blue LED's at close range, so color may play a role? Any physiological insights on how headaches are triggered by lights?
I'm interested in hearing if other lights trigger the same effect on people, and if somebody knows what the mechanism is behind this.
:thanks:
PS. Migraines aside, HID lights are COOOOOOL!
Does anybody know whether there's a "light intensity threshold" beyond which a light can cause headaches or trigger migraines? Also, I get headaches from using regular blue LED's at close range, so color may play a role? Any physiological insights on how headaches are triggered by lights?
I'm interested in hearing if other lights trigger the same effect on people, and if somebody knows what the mechanism is behind this.
:thanks:
PS. Migraines aside, HID lights are COOOOOOL!
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