| 摘要 |
<p>An apertured polymer button (20) in which that portion of the button which is machined and polished to produce a contact lens contains holes (22a-22d, 24, 26) having a diameter of 40 to 60 microns and allow the passage through the finished lens of fluids and/or holes (28, 30, 32, 34, 36, 38, 40) having a diameter of 5 to 25 microns and allow the passage through the finished lens of gases such as oxygen and carbon dioxide but not fluids.</p> |
