http://ideas.eyeconx.net/story.php?title=astronaut-vision-changes-offer-opportunity-for-research Astronauts on the International Space Station are not allowing vision issues to keep them from completing their important tasks on the orbiting laboratory. In fact, they are taking advantage of the opportunity to study why weightlessness alters vision.Even after 50 years of human spaceflight, scientists still are making new discoveries about human health in microgravity. New research points to a p... Wed, 15 Feb 2012 18:19:12 EST en