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Effect of microgravity on several visual functions during sts shuttle missions
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Task, H. Lee Oneal, Melvin R. Genco, Louis V. |
| Copyright Year | 1992 |
| Description | Changes in the acuity of astronaut vision during flight are discussed. Parameters such as critical flicker vision, stereopsis to 10 seconds of arc, visual acuity in small steps to 20/7.7, cyclophoria, lateral and vertical phoria and retinal rivalry were tested using a visual function tester. Twenty-three Space Transportation System (STS) astronauts participated in the experiments. Their vision was assessed twice before launch and after landing, and three to four times while on-orbit and landing. No significant differences during space flight were observed for any of the visual parameters tested. In some cases, slight changes in acuity and stereopsis were observed with a subsequent return to normal vision after flight. |
| File Size | 407415 |
| Page Count | 8 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19920013088 |
| Archival Resource Key | ark:/13960/t6741pk7n |
| Language | English |
| Publisher Date | 1992-02-01 |
| Access Restriction | Open |
| Subject Keyword | Behavioral Sciences Phoria Gravitational Effects Gravitational Physiology Visual Acuity Retina Astronauts Space Transportation System Flicker 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 |
