NUTRITION
THE HUMAN BODY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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fluids in thier eye build up
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swelling of the optic nerve
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space dust
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falttening of the eyeball
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Detailed explanation-1: -A closer look at space travelers revealed that a buildup of brain fluids may be squishing their eyeballs from behind. Many astronauts returning to Earth after long-duration missions in space suffer from blurry vision that does not always get better.
Detailed explanation-2: -NASA identified the problem as Visual Impairment Intracranial Pressure Syndrome (VIIP), which is now knowns as Space-Associated Neuro-Ocular Syndrome (SANS). This syndrome affects 80% of astronauts on long-duration missions in space.
Detailed explanation-3: -The VIIP moniker came from an early hypothesis that shifts in fluids toward the head due to lack of gravity caused increased pressure in the brain, leading to changes in eye structure and, as a result, vision.