15th February 2012, 12:17 AM 
	
	
	
		At least, female astronauts haven't seen any of the vision degradation that apparently some male ISS astronauts have, in the 6 month to 1 year stays they've had.  The article (below) is an interesting article, this isn't a spaceflight problem I had ever considered before but it's another one we'll have to deal with, obviously.
http://lightyears.blogs.cnn.com/2012/02/...?hpt=us_c2
	
	
	
http://lightyears.blogs.cnn.com/2012/02/...?hpt=us_c2
 

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