OXYGEN TENSION UNDER AN OXYGEN‐PERMEABLE CONTACT LENS*
OXYGEN TENSION UNDER AN OXYGEN‐PERMEABLE CONTACT LENS*
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透氧隐形眼镜下的氧张力*
DOI：
10.1097/00006324-197107000-00001
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发表时间：
1971
影响因子：
1.4
通讯作者：
R. St Helen
中科院分区：
文献类型：
--
作者：
I. Fatt;R. St Helen
&NA;透氧接触透镜下角膜前表面的氧张力是氧气透过率和透镜厚度的函数。本文报告了几种凝胶接触镜和一种硅橡胶透镜的透氧率，并介绍了测量方法。对于睁开的眼睛，几种镜片显示出在角膜表面处提供足以维持正常角膜厚度的氧张力。没有一个测试的镜片会对闭着的眼睛做这件事。
&NA; 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.