Scotopic Sensitivity with 10% Oxygen

Abstract

The night vision (scotopic) sensitivity of 6 subjects was measured while they were breathing either air (21% oxygen, PO2 160 torr) or 10% oxygen, balance nitrogen (PO2) 76 torr. Continuous monitoring showed that the mean oxygen content in the arterial blood (SaO2) dropped from 97% to 77% during the first seven minutes of breathing 10% oxygen, and there was a significant degradation of scotopic sensitivity. The reduced sensitivity was attributed solely to hypoxia with no contribution from hypocapnia. Keywords: Scotopic sensitivity; Hypoxia; Hypocapnia.

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Document Details

Document Type
Technical Report
Publication Date
Jul 09, 1987
Accession Number
ADA183973

Entities

People

  • Douglas R. Knight
  • S. M. Luria

Organizations

  • Naval Submarine Medical Research Laboratory

Tags

DTIC Thesaurus Topics

  • Altitude
  • Barometric Pressure
  • Biomedical Research
  • Carbon Dioxide
  • Carbon Monoxide
  • Degradation
  • Dielectric Gases
  • Gases
  • Hypocapnia
  • Intensity
  • Mass Spectrometers
  • Measurement
  • Monitoring
  • Monoxides
  • New York
  • Night Vision
  • Partial Pressure

Readers

  • Cardiovascular Physiology