[Regulation of PO2 in the area of the optic papilla of the minipig in hyperoxia]

Klin Monbl Augenheilkd. 1991 May;198(5):404-5. doi: 10.1055/s-2008-1045992.
[Article in French]


PO2 measurements using a double barrelled recess type microelectrodes were measured in the optic nerve head of miniature pigs in normoxia and hyperoxia. Although periarteriolar PO2 increased markedly during systemic hyperoxia (100% oxygen breathing), the intervascular PO2 remained stable under hyperoxia. These results suggest a regulation of the tissue PO2 of the optic nerve head, as the retina does, at constant values during hyperoxia.

Publication types

  • English Abstract

MeSH terms

  • Animals
  • Humans
  • Optic Disk / blood supply*
  • Oxygen / blood*
  • Retinal Vessels / physiology
  • Swine
  • Swine, Miniature
  • Vasoconstriction / physiology


  • Oxygen