Oxygen permeability of collagen shields.
نویسندگان
چکیده
The oxygen permeability (Dk) of ten 24-hr collagen shields was measured directly by polarographic methodology at approximately 2 hr of hydration. Edge and boundary effects were included in the calculations. Dk was found to be approximately 26 x 10(-11) cm ml O2/sec ml mmHg at 35 degrees C. Mean water content of the shields was 65.7% (SD = 1.0%) as measured by a hand refractometer. Therefore, the projected oxygen transmissibility of collagen shields is expected to be compatible with normal corneal metabolism.
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ورودعنوان ژورنال:
- Investigative ophthalmology & visual science
دوره 31 2 شماره
صفحات -
تاریخ انتشار 1990