ISS astronaut eye exam. NASA astronaut Tom Marshburn (born 1960),Expedition 34 flight engineer,performing a tonometry eye exam on Canadian Space Agency astronaut Chris Hadfield (born 1959). The purpose of this exam is to measure intraocular eye pressure. Photographed in the Columbus laboratory of the International Space Station (ISS) on 21st January 2013 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NASA |
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