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Contact: Laurie Abadie
laurie.j.abadie@nasa.gov
281-483-1985
NASA/Johnson Space Center

Tom Marshburn, NASA, and Chris Hadfield, Canadian Space Agency

Caption: Expedition 34/35 Flight Engineer Tom Marshburn of NASA performs a tonometry eye exam on Chris Hadfield of the Canadian Space Agency in the Columbus module of the International Space Station. Tonometry measures intraocular eye pressure.

Credit: Photo credit: NASA

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