Curr Opin Ophthalmol 2021 Jan;32(1):69-73
Department of Orthopaedic Surgery, University of California, San Diego, California, USA.
Purpose Of Review: During prolonged spaceflight, astronauts often experience ocular changes, due to constant head-ward fluid shifts in space as compared with Earth. This article reviews symptoms, likely causes, and potential solutions, such as lower body negative pressure, to counteract space-associated neuroocular syndrome (SANS).
Recent Findings: Low gravity conditions and other aspects of spaceflight affect the eye detrimentally, causing SANS which is characterized by optic disc edema, choroidal thickening, cotton wool spots, and a hyperopic shift. Read More