Acute exposure to negative pressure did not reverse spaceflight-induced ocular changes
A recent study of OCT changes in spaceflight-associated neuro-ocular syndrome (SANS) highlighted in the September 25th issue of Ocular Surgery News suggests that it may be possible for longer-duration lower body negative pressure (LBNP) application to reverse spaceflight-induced ocular changes.
The NASA Fluid Shifts Study included 14 crew members. Preflight and postflight OCT scans were obtained at NASA’s Johnson Space Center, and other scans were acquired during spaceflight under normal weightless conditions.
In the article, Alex Huang, MD, PhD, further shares his perspective on the challenges of studying SANS on the ISS and current counter-measures for studying SANS on Earth.
For more learning about SANS and OCT on the ISS:
(Parts 1 and 2 of recorded webinar with Captain Tyson J. Brunstetter and Dr. William J. Tarver)
And here (recorded webinar with Alex A. Huang, MD, PhD)