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Flashes of light when eyes closed

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  • 31-03-2010 2:20am
    #1
    dsmythy
    Registered Users Posts: 10,508 ✭✭✭✭


    Probably not the correct forum but here goes!

    I was just wondering what the explanation is of a situation where you are lying in bed at night with your eyes closed and you hear a sudden noise. Upon hearing it your heart might 'skip a beat', this pretty much explains itself.

    Another thing that might happen upon hearing the sudden noise is you see a flash of light or a flash of an image or shape, this while your eyes are still closed. When you open them following the noise the image is gone.

    I was wondering what the process is that causes this?

    The only reason i decided to ask is a particularly clear image i 'saw' the other night upon hearing a loud unexpected noise. I saw clear shapes, like thick 3D silver coloured stars or snowflakes, which took over the entire field of vision (still behind closed eyes) for half a second or so.


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    #2
    Capt'n Midnight
    Moderators, Recreation & Hobbies Moderators, Science, Health & Environment Moderators, Technology & Internet Moderators Posts: 90,760 Mod ✭✭✭✭Capt'n Midnight


    synesthesia / phosphene ?


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    #3
    Kevster
    Closed Accounts Posts: 2,980 ✭✭✭Kevster


    Capt'n Midnight wrote: »
    synesthesia / phosphene ?

    ... ...beat me to it! However, I'll be a proper git by saying that the British way of spelling it is synaesthesia (with the extra 'a').


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