Ocular biomechanics in space

Over the next century, humans will leave planet Earth and become a multi-planetary species. But will they be able to see by the time they get to Mars? Space-associated neuro-ocular syndrome (SANS) is a condition that affects astronauts during spaceflight. It is characterized by a loss of visual acuity, changes in ocular length and biomechanics. The condition is thought to be caused by a combination of factors, including microgravity, radiation, and fluid shifts.

I am interested in measuring biomechanical changes in astronauts, before, during and after spaceflight. We use a combination of structural imaging and optical coherence elastography to measure changes in the eye’s biomechanics. This research will help develop guidelines for the design of future space missions.