Bath P E, Romberger A B, Brown P
Invest Ophthalmol Vis Sci. 1986 May;27(5):795-8.
Power density producing damage at a probability of 0.5 (ie, damage threshold, DT-50) was determined for PMMA (with/without UV absorber) and Silicone intraocular lenses. Scattered light from a collinear diagnostic He:Ne beam was one of four damage monitors deployed to enhance the sensitivity of the system. In order of increasing laser resistance the following results were obtained: injection molded PMMA (1.9/GW/cm2) Silicone (2.63 GW/cm2) Lathe-cut PMMA (4.47 GW/cm2), Lathe-cut PMMA with UV absorber (8.32 GW/cm2), Cast-molded PMMA (12.30 GW/cm2). An analysis of variance revealed interclass differences significant at the .01 level. Cast-molded PMMA was the most laser-resistant IOL material.
测定了聚甲基丙烯酸甲酯（含/不含紫外线吸收剂）和硅酮人工晶状体在概率为0.5时产生损伤的功率密度（即损伤阈值，DT-50）。来自共线诊断氦氖光束的散射光是部署的四个损伤监测器之一，用于提高系统的灵敏度。按照抗激光能力增强的顺序，得到以下结果：注塑聚甲基丙烯酸甲酯（1.9/GW/cm²）、硅酮（2.63 GW/cm²）、车床切割聚甲基丙烯酸甲酯（4.47 GW/cm²）、含紫外线吸收剂的车床切割聚甲基丙烯酸甲酯（8.32 GW/cm²）、铸模聚甲基丙烯酸甲酯（12.30 GW/cm²）。方差分析显示组间差异在0.01水平上显著。铸模聚甲基丙烯酸甲酯是最抗激光的人工晶状体材料。
