OH Exam
ISS040-E-006897 (3 June 2014) --- European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, performs an Ocular Health (OH) examination in the Destiny laboratory of the International Space Station.
ISS040-E-006897 (3 June 2014) --- European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, performs an Ocular Health (OH) examination in the Destiny laboratory of the International Space Station.