Oxygenation state and twilight vision at 2438 m.

  title={Oxygenation state and twilight vision at 2438 m.},
  author={Desmond M. Connolly},
  journal={Aviation, space, and environmental medicine},
  volume={82 1},
INTRODUCTION Under twilight viewing conditions, hypoxia, equivalent to breathing air at 3048 m (10,000 ft), compromises low contrast acuity, dynamic contrast sensitivity, and chromatic sensitivity. Selected past experiments have been repeated under milder hypoxia, equivalent to altitude exposure below 2438 m (8000 ft), to further define the influence of oxygenation state on mesopic vision. METHODS To assess photopic and mesopic visual function, 12 subjects each undertook three experiments… CONTINUE READING