Alloplastic refractive keratophakia: a comparison of predictive algorithms.
Alloplastic refractive keratophakia: a comparison of predictive algorithms.
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异塑性屈光角膜晶状体：预测算法的比较。
DOI：
10.1097/00140068-198604000-00014
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
McCarey,BE
中科院分区：
文献类型：
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作者：
Watsky,MA;McCarey,BE
异体屈光角膜移植术的可预测性已经在猴模型中使用几种不同的光学分析进行了检查。使用以下方法计算手术提供的功率变化的预测：1) 后顶点功率算法（“三明治”算法），2) 近轴射线追踪，以及 3) 子午射线追踪。将由微型角膜刀和袋切口内的水凝胶植入物以及袋切口内的聚甲基丙烯酸甲酯和Udel®聚砜植入物引起的测量屈光变化与各种光学分析的结果进行比较。事实证明，“三明治”算法在预测两种水凝胶技术的结果方面最有效，而近轴射线追踪最能预测半刚性植入物的结果。
The predictability of alloplastic refractive keratoplasty has been examined using several different optical analyses in the monkey model. Predictions of the power changes provided by the surgery were calculated using: 1) a back vertex power algorithm (“sandwich” algorithm), 2) paraxial ray tracing, and 3) meridional ray tracing. The measured refractive change caused by hydrogel implants within microkeratome and pocket incisions and polymethylmethacrylate and Udel® polysulfone implants within pocket incisions were compared to the results of the various optical analyses. The “sandwich” algorithm proved most effective in predicting the results of both hydrogel techniques, while the paraxial ray trace best predicted the semirigid implant results.