October 1987
Volume 28, Issue 10
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Articles  |   October 1987
The effect of corneal contact lenses on the oxygen tension in the anterior chamber of the rabbit eye.
Author Affiliations
  • E Stefánsson
    Duke University Medical Center, Department of Ophthalmology, Durham, North Carolina 27710.
  • G N Foulks
    Duke University Medical Center, Department of Ophthalmology, Durham, North Carolina 27710.
  • R C Hamilton
    Duke University Medical Center, Department of Ophthalmology, Durham, North Carolina 27710.
Investigative Ophthalmology & Visual Science October 1987, Vol.28, 1716-1719. doi:
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      E Stefánsson, G N Foulks, R C Hamilton; The effect of corneal contact lenses on the oxygen tension in the anterior chamber of the rabbit eye.. Invest. Ophthalmol. Vis. Sci. 1987;28(10):1716-1719.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

The oxygen tension in the aqueous humor in the anterior chamber of rabbit eyes was measured continuously with a polarographic electrode. The normal oxygen tension in the anterior chamber was 23 +/- 2 mm Hg (mean +/- SD, n = 4). A contact lens was then placed on the cornea for at least 10 min and the drop in oxygen tension recorded. A hard polymethylmethacrylate lens reduced the oxygen tension by 16 +/- 4 mm Hg, and a larger hydroxyethylmethacrylate soft lens (Soflens) decreased oxygen tension by 17 +/- 4 mm Hg (mean +/- SD, n = 4). Comparable statistically significant decreases were seen with the Permalens, Polycon II, and Silcon lenses. Only the elastofilcon A lens (Silsoft) did not decrease the oxygen tension in the anterior chamber significantly.

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