Wavefront guided ablation on cornea

YE Han; LIAO Wen-he; SHEN Jian-xin

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Wavefront guided ablation on cornea

更新时间：2020-08-12

- Wavefront guided ablation on cornea
- Optics and Precision Engineering Vol. 12, Issue 1, Pages: 31-36(2004)
- 作者机构：
  
  南京航空航天大学, 机电学院,江苏南京,210016
- 作者简介：
- 基金信息：
- DOI：
  CLC： TH773
- Received：21 November 2003，
  
  Revised：14 December 2003，
  
  Published Online：15 February 2004，
  
  Published：15 February 2004
- 稿件说明：
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叶寒, 廖文和, 沈建新. 波前像差引导的角膜切削模型及实现技术的研究[J]. 光学精密工程, 2004,(1): 31-36

YE Han, LIAO Wen-he, SHEN Jian-xin. Wavefront guided ablation on cornea[J]. Editorial Office of Optics and Precision Engineering, 2004,(1): 31-36
叶寒, 廖文和, 沈建新. 波前像差引导的角膜切削模型及实现技术的研究[J]. 光学精密工程, 2004,(1): 31-36 DOI：

YE Han, LIAO Wen-he, SHEN Jian-xin. Wavefront guided ablation on cornea[J]. Editorial Office of Optics and Precision Engineering, 2004,(1): 31-36 DOI：

摘要

对波前像差概念和表示方法做了必要的叙述

深入研究了波前像差引导的角膜个性化切削模型

推出了角膜手术区域中角膜修正量的基本公式

给出了实现个性化像差矫正手术的软硬件框图.采用该模型引导的扫描频率为120Hz

光斑直径为0.9mm的准分子激光眼科治疗机做PMMA试验

对比传统的屈光不正矫正模型

在手术区域直径为6.5mm条件下

给出了近视、远视、近视散光各种情况下手术的最大切削深度和切削时间.试验结果表明

各种情况下角膜最大切削深度基本相同

波前像差矫正切削模型的切削时间稍大

PMMA板切削效果良好.

Abstract

The customized ablation based on the individual eye's wavefront aberrations and the ablation depth in corneal zone were studied and the hardware and software used for wavefront aberrations were developed for refractive surgery. According to this model

a scanning-spot laser with a 1.0 mm spot size and a 200 Hz repetition rate were used. Under the condition that the treatment area diameter is 6.5 mm

the PMMA result to myopia

hyperopia

astigmatism is that the maximal depth is equal and the time needed is a little bigger than the refractive errors of guided Lasik model

the result shows that the wavefront guided Lasik model is acceptable.

关键词

Keywords

references

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