| 摘要 |
<p>A fixture for centering a hydrated lens in preparation for taking one or more measurements of the lens includes a lens-seating surface having a radius of curvate less than the radius of curvature of the posterior surface of the lens which lies in contacting relation to the lens-seating surface when placed thereon. The differing radii of curvature between the facing surfaces creates interacting forces which urge the lens to center itself upon the fixture.</p> |
