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像差仪
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  wavefront aberrometer
     Methods : The WA of the 64 emmetropia and myopia(including 9 emmetropia, 21 mild myopia and 34 moderate myopia) and 5 eyes with IOL were measured with a Hartmann-Shack wavefront aberrometer(carl zeiss) in the state of unaccommodation and accommodation with the 6mm pupil diameter.
     对象和方法:采用根据Hartmann-Shack原理设计的WASCA波前像差仪,在6mm瞳孔直径分别测量64例正视眼和中低度近视眼(其中正视组9眼、低度近视组21眼、中度近视组34眼)及5例人工晶体眼在调节放松和调节状态的波前像差。
短句来源
     and SA40N respectively. The aberrations were measured with the Tscherning-type wavefront aberrometer, Allegretto Wave Analyzer (Allegretto, Germany) after surgery. The contrasts sensitivity were measured with CSV-1000E (Vector Vision, USA).
     术后由Allegretto Wave Analyzer(Allegretto,Germany)像差仪测量高阶像差,由CSV-1000E(Vector Vision,USA)测量对比敏感度。
短句来源
     The wavefront aberration was examined 1daybefore surgery and 1,7,30 and 60 days after horizontal rectus recession and resection with wavefront aberrometer(Suzhou Brite Eye Aberrometer WFA1000B) .
     分别于手术前1天和手术后1,7,30,60天。 用主观单色波前像差测量仪(苏州亮睛医疗器械有限公司WFA1000B波前像差仪)测量波前总像差及各分阶像差的改变。
短句来源
     Objective: To study the higher order aberrations of emmetropic and ametropic eyes with wavefront aberrometer.
     目的:借助波阵面像差仪研究正视眼及屈光不正眼的高阶像差。
短句来源
     The principle of the subjective wavefront aberrometer and its software control flow chats are given.
     采用主观式人眼像差仪测量像差,并研究其实现原理和软件控制框图。
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  “像差仪”译为未确定词的双语例句
     · RESULTS: The degrees of myopia measured with wavefront aberration analyzer, autorefraction and phoropter were -6.18±2.77,-5.80±2.80,-5.88±2.72D respectively.
     结果:波前像差仪、自动验光仪、综合验光仪3种方法测得的球镜度数分别为-6.18±2.77,-5.80±2.80,-5.88±2.72D;
短句来源
     The wavefront aberrations of human eyes at 3.1mm, 5.2mm and 6mm pupil diameters are measured by Hartmann-Shack human eye aberrometry.
     采用Hartmann-Shack人眼像差仪,测量了人眼在3.1mm,5.2mm和6mm瞳孔直径下的波前像差。
短句来源
     Results The spherical equivalent refractions measured with the aberrometer under mesopic situation and pupil dilated condition were -6.85±3.03D and -6.73±2.98D respectively,and the results measured with autorefraction under the same dilated situation was -6.66±3.42D.
     结果 散瞳前后Asclepion波前像差仪测得的低阶像差以及散瞳电脑自动验光测得的等效球镜度分期为 -6 85± 3 0 3D ,-6 73± 2 98D ,-6 66± 3 42D。
短句来源
     Clinical study of higher order wavefront aberrations with a Tscherning aberrometer
     Tscherning波阵面像差仪测量眼高阶像差的临床研究
短句来源
     Methods Wavefront aberrations in 37 subjects(72 eyes) were measured in small pupil(2-4mm) and big pupil (>6.5mm) by using WAF1000, a spatially resolved refractometer, at the preoperative and 1- month postoperative respectively.
     方法采用WFA1000型主观像差仪得到37例(72眼)近视眼患者LASIK手术前和术后1月大瞳(>6.5mm)和小瞳(2-4mm)的波前像差变化数据;
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  相似匹配句对
     Accuracy of Zywave aberrometer in measurement of refractive errors
     Zywave波前像差测量屈光不正的准确性研究
短句来源
     HARMONIC DIVIDER
     调和
短句来源
     Implementing of the Pupil Center Auto-tracking in the Wavefront Aberrometer
     人眼像差中瞳孔自动跟踪的实现
短句来源
     A NEW GUN FOR CATHODE LUMINESCENT INSTRUMENT
     阴极发光电子枪
短句来源
     Analysis of the Aberration Problem
     对像差问题的分析
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  wavefront aberrometer
Evaluating Optical Quality of a Bifocal Soft Contact Lens in Near Vision Using a Shack-Hartmann Wavefront Aberrometer
      
Wavefront guided excimer laser ablation uses the data obtained by the corre sponding wavefront aberrometer devices.
      


We implemented the main techniques for measuring wave front aberrations in the human eye and employed these techniques in refractive surgery. By adapting the Hartmann Schack,Tsherning,or Scheiner Smirnov theories,the aberrometer(aberroscope) can give complete measurements of aberrations in the human eye. This data can be combined during refractive surgery to obtain a customized refractive design that results in a more perfect visual quality after PRK and LASIK refractive surgery. [FK(WB80011?6]

介绍测量人眼像差的几种主要方法及其在屈光手术中的应用。以Hartmann Schack、TsherningorScheiner Smirnovtheories理论为基础的像差仪或像差镜能测量人眼屈光系统所有的像差 ,所得到的数据与屈光手术系统相结合后设计个性化切削方案 ,从而能提高PRK、LASIK等屈光手术术后的视觉质量

Objectives To study the wavefront aberrations changes of the complications following laser in situ keratomileusis(LASIK)for myopia and myopia astigmatism.Methods A retrospective clinical trial was designed to assess the chances of the wavefront aberration of the complications following LASIK of twenty-nine eyes of twenty-five patients enrolled in this study.The wave front aberrations of complications undergoing LASIK was compared with uncomplications.Coefficients of 35 terms of zemike aberrations were directly...

Objectives To study the wavefront aberrations changes of the complications following laser in situ keratomileusis(LASIK)for myopia and myopia astigmatism.Methods A retrospective clinical trial was designed to assess the chances of the wavefront aberration of the complications following LASIK of twenty-nine eyes of twenty-five patients enrolled in this study.The wave front aberrations of complications undergoing LASIK was compared with uncomplications.Coefficients of 35 terms of zemike aberrations were directly obtained from the aberrometer,and RMS of each order of Zemike and RMS of overall wavefront aberrations were analyzed by Madlab.Results On average,BCVA(best corrected vision acuity)was 1.01±0.12 in the uncomplicative group preoperatively,and BCVA was 0.99±0.14 at 3 months postoperatively.BCVA was 1.01±0.09 in the complicative group preoperatively,and BCVA was 0.61±0.24 postoperatively.The preoperative RMS of overall wavefront aberrations was 0.65μm,the postoperative RMS in the uncomplicative group was 1.51μm,the central island group was 6.78μm,the decentered ablative group was 7.94μm,the irregular astigmatism group 9.32μm,the polycentric ablative group was 7.29μm.Conclusions The complications following LASIK may increase markedly the optical wavefront aberrations and affect badly the quality of vision.

目的 探讨屈光手术后中央岛、偏中心、不规则散光、多中心切削等并发症对眼波阵面像差的影响。方法 进行一项回顾性的临床研究 ,对接受 L ASIK手术术后发生各种并发症的 2 5例患者 (2 9只眼 )的眼波阵面像差进行了评估。采用主观性波阵面像差仪对眼波阵面像差进行了测量与比较。检查结果通过 Madlab软件分析 ,直接获取 35项 Zemike系数及每阶 Zemike系数的 RMS值。结果 无并发症组患者术前最佳矫正视力 (BCVA)是 1.0 1± 0 .12 ,术后 3月 BCVA为 0 .99± 0 .14 ;并发症组患者术前 BCVA是 1.0 2± 0 .0 9,术后 BCVA为 0 .6 1± 0 .2 4。术前眼波阵面像差的 RMS值为 0 .6 5μm ,术后无并发症组为 1.5 1μm;而中央岛组的 RMS值为 6 .78μm ;偏中心组为 7.94μm;不规则散光组为 9.32μm ;多中心切削组为 7.2 9μm。结论  L ASIK术中术后所致的并发症可导致眼波阵面像差数倍的增加 ,严重影响患者术后的视觉质量

Excimer laser aberration correction system is able to create customised ablation, not only for the correction of emmetropia, but also to reduce higher order ocular aberrations. It can reduce aberrations and eliminate night vision problems caused by LASIK surgery. Excimer laser aberration correction system includes two parts: wavefront aberration measurement using subjective aberrometer WFA 1000 and wavefront aberration correction using excimer laser system. We introduced the concept of the wave front aberration...

Excimer laser aberration correction system is able to create customised ablation, not only for the correction of emmetropia, but also to reduce higher order ocular aberrations. It can reduce aberrations and eliminate night vision problems caused by LASIK surgery. Excimer laser aberration correction system includes two parts: wavefront aberration measurement using subjective aberrometer WFA 1000 and wavefront aberration correction using excimer laser system. We introduced the concept of the wave front aberration of the living human eye and the methods of evaluation; fitted the data to a Zernike series to reconstruct the wavefront aberrations of living human eye. We studied the principle of excimer laser aberration correction system and the block diagram of system controlling software. The mechanism of action of excimer laser corneal ablation, "flying-spot" scanning, active eye ball tracking, as well as laser energy closing loop controlling key technologies had been discussed. Our research results have been applied to the excimer laser aberration correction system. During animal practice, it has achieved satisfactory outcomes.

准分子激光人眼像差矫正系统旨在实现个性化切削 ,它不仅能进行正常的屈光矫正 ,而且可以减少高阶的光学像差 ,能够减少由LASIK手术引起的像差和夜间视物障碍。准分子激光人眼像差矫正系统包括主观式像差仪进行波前像差的测量、准分子激光系统进行像差矫正两大部分。描述了人眼波前像差的概念、成因以及表示的方法 ,着重研究了Zernike多项式与人眼波前像差的对应关系 ,利用主观空间分辨屈光计原理制成的主观式像差仪进行人眼波前像差的测量 ;研究了准分子激光人眼像差矫正系统的原理和系统软件控制框图 ,对准分子激光切削角膜的机理、飞点扫描技术、主动眼球跟踪技术、激光的能量闭环控制技术等关键技术作了阐述。研究的成果直接用于准分子激光人眼像差矫正系统 ,已通过动物试验 ,目前正在进行临床实验。

 
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