As space travel becomes more common, it is important to consider the impacts of space flight and altered gravity on the human body. Led by Dr. Ana Diaz Artiles, researchers at Texas A&M University are studying some of those impacts, specifically effects on the eye.
Gravitational changes experienced by astronauts during space travel can cause fluids within the body to shift. This can cause changes to the cardiovascular system, including vessels in and around the eyes. As the commercialization of space flight becomes more common and individual space travel increases, astronauts will not be the only ones experiencing these changes.
Individuals traveling to space with commercial companies may not be as fit or healthy as astronauts, making it even more important to understand the role that fluid shift plays in cardiovascular and eye health. When we experience microgravity conditions, we see changes in the cardiovascular system because gravity is not pulling down all these fluids as it typically does on Earth when we are in an upright position. When we're upright, a large part of our fluids are stored in our legs, but in microgravity we get a redistribution of fluids into the upper body.
" Diaz Artiles, assistant professor in the Department of Aerospace Engineering and a Williams Brothers Construction Company Faculty Fellow These fluid shifts may be related to a phenomenon known as Spaceflight Associated Neuro-ocular Syndrome (SANS), which can cause astronauts to experience changes .