Fluid shift and vision changes

Overview

In weightlessness, body fluids shift toward the head, contributing to the vision changes studied as Spaceflight-Associated Neuro-ocular Syndrome (SANS).

Knowledge connections

• Science supported byInternational Space Station
• Mitigated byLower-Body Negative Pressure
• Mitigated byArtificial Gravity
• Member of groupSpace Medicine
• Associated withInternational Space Station

Sources

The primary and reference sources this topic draws on.

• NASANational Aeronautics and Space Administration

  Mission data, planetary science, space telescopes, and public-domain imagery.

  Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.