Vision Effect of spaceflight on the human body

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intracranial pressure


because weightlessness increases amount of fluid in upper part of body, astronauts experience increased intracranial pressure. appears increase pressure on backs of eyeballs, affecting shape , crushing optic nerve. effect noticed in 2012 in study using mri scans of astronauts had returned earth following @ least 1 month in space. such eyesight problems major concern future deep space flight missions, including manned mission planet mars.


if indeed elevated intracranial pressure cause, artificial gravity might present 1 solution, many human health risks in space. however, such artificial gravitational systems have yet proven. more, sophisticated artificial gravity, state of relative microgravity may remain, risks of remain unknown.









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