Refractive shifts in astronauts during spaceflight: mechanisms, countermeasures, and future directions for in-flight measurements
Year: 2024
Type: article
Abstract: Spaceflight associated neuro-ocular syndrome (SANS) refers to a unique set of neuro-ophthalmic symptoms associated with long-duration space flight documented in astronauts, both in-flight and post-flight. These notable clinical findings include optic disc edema, posterior globe flattening, chorioretinal folds, retinal nerve fiber layer thickening, and hyperopic refractive shifts [ 1 , 2 , 3 ]. These hyperopic refractive shifts were among the first findings of SANS, noted by astronauts aboard the international space station (ISS) in 1989 and likely prior, as a visual change necessitating the use of stronger reading glasses [ 4 , 5 ]. This led to the introduction of what has been referred to as “Space Anticipation Glasses” used by astronauts to mitigate the anticipated effects of long-term spaceflight on visual acuity [ 6 ].
Source: Eye
Institutions: Edward Via College of Osteopathic Medicine, University of Michigan, Boston University, Texas A&M University, Houston Methodist, University of Cambridge, University of Nevada, Reno, The University of Texas Medical Branch at Galveston, University of Iowa, The University of Texas MD Anderson Cancer Center, Baylor College of Medicine, University of Iowa Hospitals and Clinics, Weill Cornell Medicine
Language: English
Subfield: Physiology
Field: Medicine
Domain: Health Sciences
Open Access status: hybrid
Estimated APC paid: $5,290
OpenAlex ID: W4397002543