Numerical and experimental study of the International Space Station crew quarters ventilation

Georgescu, Matei Razvan; Meslem, Amina; Năstase, Ilinca; Sandu, Mihnea

doi:10.1016/j.jobe.2021.102714

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…The interior of spacecraft and space stations are likely to have an impact on the tear film. This is because of strong air currents (air exchanged 45–77 times per hour in crew quarters) coupled with a relative humidity of about 60% (ISS), increased CO 2 exposure, artificial lighting, cosmic radiation, and extensive screen work ( Gamus et al, 1994 ; Scull et al, 1998 ; Uchino et al, 2013 ; Stenger et al, 2017 ; Georgescu et al, 2021 ) which increase tear film evaporation and inflammation of the ocular surface. These factors need to be addressed to minimize the risk of ocular surface damage.…”

Section: Environmental Hazards Associated With Space Travelmentioning

confidence: 99%

Dry eye disease in astronauts: a narrative review

Ax,

Ganse,

Fries

et al. 2023

Front. Physiol.

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Long-duration spaceflight can have adverse effects on human health. One of the most common ocular conditions experienced by astronauts is dry eye disease (DED). Symptoms of DED include feelings of eye irritation, eye strain, foreign body sensation and blurred vision. Over 30% of International Space Station expedition crew members reported irritation and foreign body sensation. We reviewed the current literature on the prevalence and mechanisms of DED in astronauts and its potential implications for long-duration spaceflight, including the influence of environmental factors, such as microgravity and fluid shift on tear film physiology in space. DED has negative effects on astronaut performance, which is why there is a need for further research into the pathophysiology and countermeasures. As an in-flight countermeasure, neurostimulation seems to be among the most promising options.

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