NASA’s Chief Health and Medical Officer Dr James Polk commented: “Although our mechanism for vision change and potential elevations in intracranial pressure in astronauts may be due to the prolonged physiologic changes from weightlessness, we share some significant similarities. This clinical entity of spaceflight may be a different branch of the same tree, possibly with a common trunk. We are working to solve this issue with astronauts, but also want any research and lessons learned we find in space to help those suffering from IIH on the ground. Likewise, Professor Sinclair’s research in the IIH population may have far reaching implications, giving important clues on monitoring and treatment that can be used not only on the ground, but potentially in space.”