Public domain
OH Vision Test
From the collection of NASA Image and Video Library. Free to download, adapt and use — no permission needed.
About this work
ISS040-E-006739 (3 June 2014) --- European Space Agency astronaut Alexander Gerst, Expedition 40 flight engineer, uses the Optical Coherence Tomography (OCT) camera during an Ocular Health (OH) vision test in the Harmony node of the International Space Station. The OH experiment observes and seeks to understand vision changes during long-term space missions. NASA astronaut Steve Swanson (left), Expedition 40 commander, assists Gerst.
NASA Image and Video Library’s own descriptionCredit lineOH Vision Test. NASA/JSC, 2014-06-03. Public domain. ID: iss040e006739.
