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Red line in vision in stress
Hello guys, I need an explanation on this:
today i checked my oxygen saturation in Finger Pulse Oximeter (in College)and my readings were
pulse - 67 (it showed normal 60-130)
O2-   98%
when i put stress on my brain(stop breathing and try to push air inside lungs out) my new  readings were
pulse -174
O2-  --   (not shown by meter)
when i started breathing again at that moment ,i saw RED lines either horizontal or vertical in my vision like a CRO display .
one each of horizontal and vertical on left ,one vertical  in middle, one horizontal on right.
Iooked away and they were still there.(total 3 sec)
So i closed my eyes and relaxed and they were gone.
Could somebody explained what happened?Dd my eyes be damaged  with such attempt?
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233488 tn?1310696703
Go on the internet and read about "valsalva maneuver" that's what you did to yourself and it temporarily reduced flow to your brain and eyes. It's not a good thing to do voluntarily, its of use when passing stool, you did not damage your eyes.

JCH MD
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Thanks Sir,
I was worried, I won't repeat it
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233488 tn?1310696703
Good plan.
JCH MD
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