Natsumeda N H, Fatt I
Am J Optom Physiol Opt. 1981 Jul;58(7):590-3. doi: 10.1097/00006324-198107000-00012.
After reviewing the oxygen needs of the cornea, we calculate the increase in corneal swelling which is predicted to occur for oxygen flux through a contact lens at the rate of less than 1.5 microliters/cm(2)/hr. The amount of corneal swelling is inversely related to the oxygen flux into the anterior corneal surface. To keep corneal swelling below 4% requires a oxygen tension of about 11 mm Hg which is equivalent to a flux of 2 microliters/cm(2)/hr.
在回顾了角膜的氧气需求后，我们计算了预计因氧气通量以低于1.5微升/平方厘米/小时的速率透过隐形眼镜而发生的角膜肿胀增加量。角膜肿胀量与进入角膜前表面的氧气通量呈负相关。要使角膜肿胀低于4%，需要约11毫米汞柱的氧张力，这相当于2微升/平方厘米/小时的通量。
