iss073e0175522 (6/9/2025) --- JAXA (Japan Aerospace Exploration Agency) astronaut Takuya Onishi, assisted by NASA astronaut Nichole Ayers, conducts an eye exam on the International Space Station using optical coherence tomography. This technology uses reflected light to produce 3D images of the retina, nerve fibers, and other eye structures and layers. Spaceflight can cause changes to eye structure and vision, so scientists monitor the eye health of crew members throughout their missions.
Date June 9, 2025