All articles tagged with #sans
Many astronauts experience permanent vision changes, known as Spaceflight Associated Neuro-ocular Syndrome (SANS), during long space missions due to fluid redistribution in microgravity, prompting NASA to develop countermeasures to protect astronauts' eyesight and ensure mission success.
The Polaris Dawn mission crew will be dedicating major time to probe health impacts on the body from their sojourn into space, including the Spaceflight-Associated Neuro-Ocular Syndrome (SANS), a malady that includes swelling of the optic nerve, alteration in the shape of the eye itself, as well causing fuzziness to vision. SANS is tied to the absence of gravity's effects on the body, causing a fluid shift that can generate pressure changes in the brain and eye. The crew will be using a device built by PlenOptika and a Sensimed-produced "Triggerfish" contact lens to measure how the cornea changes shape over time.