The low levels of gravity (microgravity) in space cause significant changes in astronauts’ eyes and vision after six to 12 months aboard the International Space Station (ISS), according to a study.
That’s what Université de Montréal opthalmology Santiago Costantino found in a study published last fall in the Journal of Engineering in Medicine and Biology.
At least 70 per cent of astronauts on the ISS have been affected by spaceflight-associated neuro-ocular syndrome, or SANS.
Long duration space travel in zero or microgravity is physiologically problematic in many ways.
To read more, click here.