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I have noticed that if you look directly at tubelight (I have only white ones in my home) and close your eyes little, you see little random shaped colourless things sometimes with slow speed and sometimes with falling down.

They are shaped like circles with something in between and in chains of random length.

My father has also seen them. So, I am sure I am not imagining things. What the hell are they?

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    $\begingroup$ They're inside your eyes ;) $\endgroup$ – mikhailcazi Apr 26 '14 at 11:27
  • $\begingroup$ Oh, John Rennie's answered that. My bad, didn't see! $\endgroup$ – mikhailcazi Apr 26 '14 at 11:27
  • $\begingroup$ Almost everyone has these and they are harmless in small numbers. If you have a sudden increase in the number of floaters then that is symptomatic of potentially serious problems and you should consult an eyecare professional. $\endgroup$ – Eric Lippert Apr 26 '14 at 14:41
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    $\begingroup$ It's been suggested that this is off topic here and belongs on Biology. $\endgroup$ – David Z Apr 26 '14 at 16:37
  • $\begingroup$ This was an enigma to me from my birth to yet. $\endgroup$ – Always Confused Oct 14 '16 at 14:59
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Those are floaters. These are objects floating in the vitreous humour that fills the eyeball. They typically look like:

Floaters

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  • $\begingroup$ Thanks. Up until now, I knew that it were white blood cells.. :) $\endgroup$ – user931 Apr 26 '14 at 11:34
  • $\begingroup$ @SachinShekhar They're a variety of stuff. Protein structures, cell debris, etc. $\endgroup$ – mikhailcazi Apr 26 '14 at 11:45
  • $\begingroup$ Wikipedia says in old age.Is it normal for a 15 year old kid to see them? $\endgroup$ – Awesome Apr 26 '14 at 12:06
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    $\begingroup$ @Awesome: I've seen them ever since I was a little kid, so I don't think it's abnormal. $\endgroup$ – DumpsterDoofus Apr 26 '14 at 12:42
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    $\begingroup$ @Awesome I can recall being fascinated by this when I was still in my cot - probably about 3 years old. I recall quivverring my eyes to make them move around! I'm now 50 and everything sight wise still works well! $\endgroup$ – WetSavannaAnimal Apr 26 '14 at 13:56
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In https://en.wikipedia.org/wiki/Blue_field_entoptic_phenomenon this phenomenon is explained with white blood cells in your retina.

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