Astronauts' Vision Problems Linked to Prolonged Space Exposure, Posing Risks for Mars Missions

Extended space missions, such as those aboard the International Space Station (ISS), are linked to significant ocular changes in astronauts. These changes, collectively termed spaceflight-associated neuro-ocular syndrome (SANS), affect around 70 percent of astronauts. A recent study found reductions in ocular rigidity, intraocular pressure, and ocular pulse amplitude,...