Kate (acetamide) wrote in little_details,
Kate
acetamide
little_details

flashes of light from blacking out

Setting: modern day USA
Situation: blind man hits his head on the kitchen counter and blacks out for a few seconds

What is it that actually causes the flash of light when someone is knocked out? Would someone with a hereditary disease that's caused him to go blind (namely Leber's hereditary optic neuropathy) be able to see the flash of light at all, or would its presence be precluded by the disease?

I've tried several search combinations but just ended up with Google trying to sell my headlights every time :(
Tags: ~medicine: injuries: head injuries
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