Astronaut Eye Problems Blamed on Spinal Fluid
Over the last decade, flight surgeons and scientists at Nasa have seen a pattern of vision problems in astronauts on long-duration space missions.
The syndrome, known as visual impairment intracranial pressure (VIIP), has been reported in nearly two-thirds of space explorers after long periods spent aboard the International Space Station (ISS).
“People initially didn’t know what to make of it, and by 2010 there was growing concern as it became apparent that some of the astronauts had severe structural changes that were not fully reversible upon return to Earth,” said lead author Noam Alperin, from the University of Miami.