| 摘要 |
MOLD FOR AND METHOD OF MAKING CONTACT AND INTRAOCULAR LENSES Molded contact and intraocular lens blanks are lathe cut into the finished lens without demolding and prior measurement of the blank by the use of a hemispherical based mold with at least one key way adapted for spindle bore feeding to a lathe equipped with a hemispherical locating ring and corresponding key. Among other things the mold and method disclosed provide a convenient way to generate prism or multiple curve segments as required for segmented bifocal lenses or the like. |
