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OXYGEN TENSION UNDER AN OXYGEN-PERMEABLE CONTACT LENS

Irving Fatt, Roger St. Helen

Open publisher page 104 citations

Abstract

The oxygen tension at the anterior corneal surface under an oxygen-permeable contact lens is shown to be a function of the oxygen transmissibility and the thickness of the lens. The oxygen transmissibilities of several gel contact lenses and a silicone rubber lens are reported together with the procedure for making this measurement. Several of the lenses are shown to give, for an open eye, an oxygen tension at the corneal surface sufficient for maintenance of normal corneal thickness. None of the lenses tested will do this for the closed eye.

About this research paper

What this paper is about

The oxygen tension at the anterior corneal surface under an oxygen-permeable contact lens is shown to be a function of the oxygen transmissibility and the thickness of the lens. The oxygen transmissibilities of several gel contact lenses and a silicone rubber lens are reported together with the procedure for making this measurement. Several of the lenses are shown to give, for an open eye, an oxygen tension at the corneal surface sufficient for maintenance of normal corneal thickness. None of the lenses tested will do this for the closed eye.

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OpenAlex reports 104 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

The oxygen tension at the anterior corneal surface under an oxygen-permeable contact lens is shown to be a function of the oxygen transmissibility and the thickness of the lens. The oxygen transmissibilities of several gel contact lenses and a silicone rubber lens are reported together with the procedure for making this measurement. Several of the lenses are shown to give, for an open eye, an oxygen tension at the corneal surface sufficient for maintenance of normal corneal thickness. None of the lenses tested will do this for the closed eye.

Key concepts: Contact lens, Oxygen, Lens (geology), Transmissibility (structural dynamics), Oxygen tension, Oxygen permeability, Cornea, Materials science

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