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Visual impairment and intracranial hypertension: an emerging spaceflight risk (Document No: 20100036740)
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Taddeo, T. Alexander, D. Gibson, C. R. Polk, J. D. Sargsyan, A. Tarver, W. Fogarty, Jennifer A. Otto, C. |
| Copyright Year | 2010 |
| Description | What is the risk? Given that astronauts exposed to microgravity experience a cephalad fluid shift, and that both symptomatic and asymptomatic astronauts have exhibited optic nerve sheath edema on MRI, there is a high probability that all astronauts have some degree of increased intracranial pressure (ICP; intracranial hypertension), and that those susceptible (via eye architecture, anatomy, narrow optic disc) have a high likelihood of developing papilledema (optic disc edema, globe flattening), choroidal folds, and/or hyperopic shifts and that the degree of edema may determine long-term or permanent vision impairment or loss. Back to back panels on this topic have been developed to address this emerging risk. The first panel will focus on the 6 clinical cases with emphasis on ophthalmic findings and imaging techniques used pre-, in-, and post-flight. The second panel will discuss the operational mitigation and medical requirements, the potential role of CO2 on ISS, and the research approach being developed. In total these back to back panels will explore what is known about this risk, what has been done immediately to address it, and how an integrated research model is being developed. |
| File Size | 39437 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20100036740 |
| Archival Resource Key | ark:/13960/t87h6kb1m |
| Language | English |
| Publisher Date | 2010-01-01 |
| Access Restriction | Open |
| Subject Keyword | Aerospace Medicine Hypertension Eye Anatomy Probability Theory Nerves Fluid Shifts Biology Risk Astronauts Intracranial Pressure Space Flight Ophthalmology Microgravity Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
