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Spinal Taps And Sleeping Sacks: Astronauts Try To Learn Why Vision Changes In Space

Local Audio Posts 5

Spending time in space changes people: not just their outlook on life, but also their eyesight in general. For years, a North Texas doctor has been trying to find out what is causing this vision change among astronauts. His latest research provides some clues — and connects astronauts on the International Space Station, cancer patients on a roller coaster plane flight and high-tech sleeping sacks.