|
|
 |
专题栏目 |
 |
|
相关文章 |
|
|
|
|
|
 |
Asphericity, Spherical Aberration and Ablation Innovation |
热 |
|
| Asphericity, Spherical Aberration and Ablation Innovation |
|
作者：陈世豪 … 文章来源：温州医学院附属眼视光医院 温州市学院西路270号 325000. 点击数：1263 更新时间：2007/6/18 14:51:26 
|
|
| We compare the wavefront aberration and corneal topography measurement and their respective clinical importance. Measurement accuracy, dynamic range, repeatability, spatial resolution, spatial coverage are discussed and compared for both corneal topography and wavefront measurement. We discuss asphericity, spherical aberrations using Zernike analysis and simulation of point spread function for various shape of corneal surfaces. We then discuss a topo-driven, 3D elevation data based, prolate shape and ellipsoidal model based, volumetric ablation algorithm. We emphasize the clinical aspects of the approach, particularly during patient pre-op measurement and treatment, critical to both understanding the algorithm and in utilizing the algorithm. We also discuss the possible cause of the improper ablation, particularly that related to improper use of eye tracking and its consequences. We discuss a tissue saving algorithm in optimizing the post-op corneal shape and axis to effectively address the complicated cases such as enhancement for de-centered ablation and other irregular corneas. We introduce the concept of anchor axis, in-situ reference identification and patient alignment and its clinical applications. We discuss a new concept with our sololase system –an all laser PRK procedure that eliminate the need for any mechanical device. Numerous clinical examples of complex cases of enhancement from multiple hospitals using the technology are given to show the effectiveness of the technology in producing significant clinical outcomes including and particularly for irregular corneas and other complex corneas.
.
|
|
|
| 会议投稿录入：aya610 责任编辑：毛进 |
|
|
上一篇会议投稿： Multi-dimensional Data acquisition and Alignment in Laser Refractive Surgery
下一篇会议投稿： 糖尿病与非糖尿病患者散瞳时间及散瞳后瞳孔直径的比较 |
|
|
| 【字体：小 大】【发表评论】【加入收藏】【告诉好友】【打印此文】【关闭窗口】 |
|
 网友评论：（只显示最新10条。评论内容只代表网友观点，与本站立场无关！） |
| |
|
|
|
|
