• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of refractive surgery >Wavefront analysis in normal refractive surgery candidates.
【24h】

Wavefront analysis in normal refractive surgery candidates.

机译：正常屈光手术候选者的波前分析。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

PURPOSE: To quantify the higher order aberrations of refractive surgery candidates and compare the wavefront-determined refractions with manifest refractions refined with a +/- 0.25 Jackson cross cylinder. METHODS: Results of 226 consecutive patients (418 eyes) were analyzed with the WaveScan WavePrint system (VISX, Santa Clara, Calif). Only patients with normal eyes without previous surgery were included. RESULTS: The mean spherical equivalent refraction determined with wavefront analysis was -3.40 +/- 3.14 diopters (D) (range: -10.72 to +5.41 D). The largest amount of higher order aberrations was detected with : a 6-mm pupil diameter (coma 0.14 +/- 0.08 microm; trefoil 0.10 +/- 0.07 microm; spherical aberrations 0.09 +/- 0.07 microm). The mean root-mean-square of higher order aberrations and total aberrations were 0.23 +/- 0.11 microm and 4.00 +/- 2.45 microm, respectively. No statistically significant correlation was noted between higher order aberrations and gender (P = 0.7) or between higher orderaberration and refractive level (P > .59). The mean differences in spherical equivalent refraction, sphere, and cylinder between WaveScan measurements and manifest refraction were 0.36 +/- 0.41 D, 0.40 +/- 0.44 D, and 0.28 +/- 0.32 D, respectively. CONCLUSIONS: This study provides reference values for higher order aberrations in normal refractive surgery candidates. Wavefront analysis also proved to be a valuable tool for objectively measuring preoperative refractive error.
机译：目的：为了量化屈光手术候选者的高阶像差，并将波前确定的折射与用+/- 0.25杰克逊十字镜筒精制的明显折射进行比较。方法：使用WaveScan WavePrint系统（VISX，圣塔克拉拉，加利福尼亚州）分析了226名连续患者（418眼）的结果。只包括没有手术的正常眼睛的患者。结果：通过波前分析确定的平均球面等效屈光度为-3.40 +/- 3.14屈光度（D）（范围：-10.72至+5.41 D）。检测到最大量的高阶像差：6毫米瞳孔直径（彗星0.14 +/- 0.08微米;三叶形0.10 +/- 0.07微米;球面像差0.09 +/- 0.07微米）。高阶像差和总像差的平均均方根分别为0.23 +/- 0.11微米和4.00 +/- 2.45微米。在高阶像差和性别之间（P = 0.7）或在高阶像差和屈光水平之间（P> .59），没有统计学上的显着相关性。 WaveScan测量结果与明显折射之间的等效球面折光，球面和圆柱面的平均差分别为0.36 +/- 0.41 D，0.40 +/- 0.44 D和0.28 +/- 0.32D。结论：本研究为正常屈光手术候选人的高阶像差提供参考值。波前分析也被证明是客观测量术前屈光不正的有价值的工具。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号