Visual Sensitivities under Reduced Oxygen

Abstract

Thirteen subjects were confined in a hypobaric chamber for 15 days, and their scotopic sensitivity and field-of-view were measured twice a day. The oxygen concentration in the nitrogen-oxygen atmosphere was changed every three days in this sequence: 21%, 17%, 21%, 13%, and 21%. The barometric pressure was always equivalent to sea-level, except for the final 7 hours of exposure to 17% oxygen when it was reduced to 576 torr. The atmosphere was contaminated with 0. 9% carbon-dioxide throughout the confinement. Neither visual function was degraded by the lowered oxygen levels. Keywords: Submarines; Naval personnel; Performance(human); Hypoxia; Night vision; Field of vision.

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Document Details

Document Type
Technical Report
Publication Date
Jan 27, 1988
Accession Number
ADA195628

Entities

People

  • Nancy Morris
  • S. M. Luria

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Altitude
  • Analysis Of Variance
  • Barometric Pressure
  • Biomedical Research
  • Carbon Dioxide
  • Carbon Monoxide
  • Detection
  • Dielectric Gases
  • Hypobaric Chambers
  • Light Sources
  • Line Of Sight
  • Measurement
  • Night Vision
  • Respiration
  • Sea Level
  • Submarine Bases
  • Submarines

Readers

  • Circadian Sleep-Wake Regulation and Chronobiology
  • Mathematics or Statistics
  • Underwater engineering and Marine Technology.