用角膜接触镜制造车床切削表面角膜镜

Manufacture of Epikeratophakia Lens and Cryodevice Design

介绍了英国具有半径旋转功能的ＰＡＬｕｎｉｖｒｓａｌ型角膜接触镜精密车床所设计的冷冻装置。此装置基部与车床夹头相匹配，冻盘直径０．９ｍｍ，凹面曲率８ｍｍ，以液氮气体为制冷源，将供体角膜冻贴于装置上进行切削。包括供体角膜的预备和应用公式的选择，以及车床切削半径的确定以制作表面角膜镜片。

pikeratophakia lenses may be manufactured from donor cornea cryodevice using freezing nitrogen gas.Details of manufacturing technique using a cryodevice design are given in this paper.The preparation of donor corneas and derivation of the formulae were used to determine the radius of lathe cut.