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[CBC.ca] Space flight linked to eye, brain problems

post #1 of 8
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Quote:
Astronauts have complained for decades about vision problems such as blurriness following trips into space. A recent NASA survey of 300 astronauts found correctible near and distance vision problems in 48 per cent of astronauts who had been on extended missions and 23 per cent of those who had been on brief missions. In some cases, they lasted for years after the astronauts returned to Earth

Source

I've heard about this in the past but never thought too much about it, now I can't help but think this could be a major hurdle to overcome before we can safely traverse space for commercial purposes.
Then there is a little part of me that is saying "ALIENS, ALIENS could have been humans exposed to space too long!biggrin.gif
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post #2 of 8
Not really a problem, just need to build a space station/ship that simulates artificial gravity by centripetal force.
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post #3 of 8
Quote:
Originally Posted by Zen00 View Post

Not really a problem, just need to build a space station/ship that simulates artificial gravity by centripetal force.

Agreed, although for it not to make you extremely dizzy I would imagine the spinning tube/cylinder you stand in would have to be extremely large.
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post #4 of 8
I'm not saying it's aliens, but it's aliens. biggrin.gif

So if I read the article correctly, lack of gravity causing issues?
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post #5 of 8
Quote:
Originally Posted by Sir Beregond View Post

I'm not saying it's aliens, but it's aliens. biggrin.gif
So if I read the article correctly, lack of gravity causing issues?

I imagine it involves oxygen flow in the eyes.... Something like what they are discovering about the nature of REM.
Quote:
The research, reported in the Feb. 13 issue of Experimental Eye Research, suggests that the aqueous humor, the clear watery liquid in the anterior chamber just behind the cornea, needs to circulate to bring oxygen to the cornea from blood vessels in the iris. When the eyelids are closed during sleep the circulation slows dramatically, and the motion of rapid eye movement simply serves to "stir" the anterior chamber and prevent corneal suffocation.

http://www.sciencedaily.com/releases/1998/02/980217002808.htm
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post #6 of 8
Quote:
Originally Posted by Sir Beregond View Post

I'm not saying it's aliens, but it's aliens. biggrin.gif
So if I read the article correctly, lack of gravity causing issues?

get it right, it's an alien.....at this juncture. biggrin.gif

Quote:
" 11 per cent had changes in the pituitary gland and its connection to the brain"
, ugh,

I think this part says it all:
Quote:
The earlier study suggested that the problems might be caused by fluid shifting toward the head during extended periods of time in microgravity. This could result in abnormal flow of spinal fluid around the optic nerve, changes in blood flow in the vessels at the back of the eye, or chronic low pressure within the eye, the researchers said.
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post #7 of 8
Apple will fix this by inventing a system that recreates the force of gravity... prototype:
400

An no, of course they didn't get this idea from 2001:ASO
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post #8 of 8
simple fix, just wear one of these when you go up there
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