Changes in pupil dynamics at high altitude--an observational study using a handheld pupillometer.

@article{Wilson2008ChangesIP,
  title={Changes in pupil dynamics at high altitude--an observational study using a handheld pupillometer.},
  author={Mark H Wilson and Mark Edsell and Christopher H E Imray and Alex Wright},
  journal={High altitude medicine & biology},
  year={2008},
  volume={9 4},
  pages={
          319-25
        }
}
Gross pupil dynamics are used as an indirect measure of brain function. Changes in hypoxia and intracranial pressure are thought to alter pupil responses to light. This study assessed a portable handheld pupil measuring device (pupillometer) in the field investigating the changes in pupil size, speed of reaction, and rate of constriction/dilatation with hypoxia induced by changes in altitude. A correlation between pupil dynamics and acute mountain sickness was sought. Seventeen volunteers were… CONTINUE READING
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