Countermeasures for Visual Impairment in Astronauts

Completed · Not applicable

Conditions studied: Space Flight Associated Neuro-ocular Syndrome

In brief

This study is being done to prevent changes in the vision of astronauts during prolonged residence on the International Space Station or a mission to Mars. This project will provide data about the efficacy of lower body negative pressure to mimic daily upright posture by intermittently lowering central venous pressure while in simulated microgravity (3 days of bed rest). The investigators expect that 3 days of bed rest will increase choroid thickness, and choroid area. The investigators hypothesize that nightly LBNP (-20mmHg) will prevent these changes.

Key facts

Study ID

NCT05016414

Run by

University of Texas Southwestern Medical Center

People needed

10

Starts

2019-03-01

Expected to finish

2020-03-01

Last updated by the study team

2021-09-08

Who can join

Age: 18 and older, up to 55. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• age 18-55

You may not qualify if…

• cardiovascular disease
• ophthalmological disease

Where it is running

• UT Southwestern Medical Center — Dallas, Texas, United States

Full record on ClinicalTrials.gov

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