Dose Long Duration
Space Flight Harm Vision?

NASA has noticed for some time that astronauts are returning from six month stays on the International Space Station with blurred vision as other problems with eyesight

A new study using the brain scans of 27 astronauts who have been in space for over a month on a single mission have shown eyeball, nerve and gland abnormalities like people intracranial hypertension. Given the fact that intracranial hypertension results from internal skull pressure it could be a side affect of blood pooling in the head during space flight.

If this problem does not stabilize after six months it could be a problem for flight to mars and space tourism. At the vary least it would make artificial gravity a must.


Long Missions May Wreck Astronauts' Vision



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