O'Brien C, Charman W N
Contact Lens Research Clinic, Bausch and Lomb Ireland, 424/425 Industrial Estate, Cork Rd., Waterford, Ireland, and Department of Optometry and Neuroscience, Faculty of Life Sciences, University of Manchester, UK. caroline.o'
Cont Lens Anterior Eye. 2006 May;29(2):101-7. doi: 10.1016/j.clae.2006.02.009.
After a preliminary investigation of the effects of tool feed rate and spindle speed on the surface roughness of unhydrated, lathe-cut polymacon surfaces, a laboratory and clinical comparison was made between lenses with identical parameters except that the lathe-cut posterior surface was left unpolished in the "test" lenses and was polished in the "control" lenses. The lenses had moulded anterior surfaces. Laboratory comparisons included surface roughness, lens power and its uniformity across the surface. Double-blind clinical trials over 4-hour (27 subjects) and 1-month (10 subjects) periods, involved one eye of each subject wearing a "test" lens and the other, a "control" lens. No clinically significant differences were found between the results for the test and control lenses. It is concluded that today's lathing technology makes a final polishing stage unnecessary.
在对刀具进给速度和主轴转速对未水化的车床切割聚甲基丙烯酸甲酯表面粗糙度的影响进行初步研究之后，对参数相同的镜片进行了实验室和临床比较，不同之处在于，“测试”镜片的车床切割后表面未抛光，而“对照”镜片的后表面进行了抛光。这些镜片的前表面是模制的。实验室比较包括表面粗糙度、镜片度数及其在整个表面上的均匀性。在4小时（27名受试者）和1个月（10名受试者）期间进行的双盲临床试验中，每名受试者的一只眼睛佩戴“测试”镜片，另一只眼睛佩戴“对照”镜片。测试镜片和对照镜片的结果之间未发现具有临床意义的差异。得出的结论是，当今的车床加工技术使最终抛光阶段不再必要。
