מסגרת עם רקע לכותרת

Optic Disc Edema and Choroidal Engorgement in Astronauts During Spaceflight and Individuals Exposed to Bed Rest

תמונת נושא מאמר
27.12.2019 | Steven S. Laurie, PhD; Stuart M. C. Lee, PhD; Brandon R. Macias, PhD; et al

בשל "הגנת זכויות יוצרים", מובא להלן קישור למאמר בלבד. לקריאתו בטקסט מלא, אנא פנה לספרייה הרפואית הזמינה לך.

 

Optic disc edema develops in astronauts during long-duration spaceflight and is a risk for all future astronauts during spaceflight.

Having a ground-based analogue of weightlessness that reproduces critical features of spaceflight-associated neuro-ocular syndrome will facilitate understanding, preventing, and/or treating this syndrome.

 

Objective 

To determine whether the ocular changes in individuals exposed to an analogue of weightlessness are similar to the ocular changes in astronauts exposed to a duration of spaceflight comparable to this analogue of weightlessness.

 

This cohort study, conducted from 2012 to 2018, investigated 11 healthy test participants before, during, and after 30 days of strict 6° head-down tilt bed rest as well as 20 astronauts before and during approximately 30 days of spaceflight.

Data were collected at NASA Johnson Space Center, the German Aerospace Center, and on board the International Space Station. Statistical analysis was performed from February 13 to April 24, 2019.

JAMA Ophthalmol. 2020;138(2):165-172. doi:10.1001/jamaophthalmol.2019.5261
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