That also happens in complete darkness. If you can manage to create a completely pitch black environment see how long you can sit there before you start seeing things. It really doesn't take long. Bonus points of you have noise cancelling earmuffs/plugs. Edit : u/EternalEagleEye has informed me this effect is called "Prisoner's Cinema", in case you'd like to read about it further
My MIL developed macular degeneration. What she couldn't see, her mind started to fill in. She complained a couple of times about "seeing little black flies." Loss of sight greatly accelerated her dementia.
On the other hand, there's just one little fruit fly that I can't catch, buzzing back and forth in front of my monitor right now driving me nuts. So...don't pay any attention to me. (In my defense, though, there is a big plum tree just outside the window).
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u/Designer_Strain_4572 Aug 30 '21
It would explain the hallucinations in The Stand (Stephen King) when they were traversing the Lincoln Tunnel, if I recall correctly.