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.
Fatt et al. (Thu,) studied this question.