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波前像差仪
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  wavefront analyzer
     Comparison of the refraction results measured with MEL-70 wavefront analyzer and classical methods
     波前像差仪与常规验光法对眼屈光不正测量的对比观察
短句来源
     Objective To compare the results of refractive errors measured with MEL-70 wavefront analyzer,autorefraction and trial refractive lenses,further to know the accuracy of wavefront analyzer in measuring refractive errors.
     目的 通过波前像差仪、客观电脑验光仪及主观插片验光 3种方法对屈光不正度测量方法和结果的比较 ,了解波前像差仪对低阶像差测量的准确性及几种方法的优缺点。
短句来源
     Methods MEL-70 wavefront analyzer,autorefraction and trial refractive lenses were used respectively to measure the refractive errors in 48 eyes of 48 patients with ametropia which were randomly selected.
     方法 选取来我院接受准分子激光屈光手术的近视患者 4 8例 (48眼 ) ,分别进行MEL 70WASCA波前像差仪、客观电脑验光仪与主观插片验光法检查 ,对所得近视度数、散光度数、散光轴向进行统计分析、比较。
短句来源
     Conclusion The refractive results measured with MEL-70 wavefront analyzer of 2-order aberrations under mesopic situation with original pupil size are reliable in clinical use.
     结论 运用MEL 70WASCA波前像差仪在暗视原瞳状态下测得的低阶像差能够较准确地反映眼的屈光不正状态。
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  “波前像差仪”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
     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
     Methods One hundred and six eyes of 56 patients were divided into three groups: mild myopia (-0.50~-3.00 D), moderate myopia (-3.25~-6.00 D) and high myopia (-6.25 D~) based on measurement with autorefractor in cycloplegia and uncycloplegia.
     方法对56例行屈光不正矫正术的患者(106只眼)分别用电脑验光(睫状肌麻痹和非睫状肌麻痹下)、显然验光、Zywave波前像差仪法测量眼屈光不正,并将患者按屈光不正度数分为三组:低度近视组(-0.50~-3.00D),中度近视组(-3.25~-6.00D),高度近视组(-6.25D~)。
短句来源
     Clinical research of lower order aberrations in myopia patients measured with wavefront aberration analyzer
     波前像差仪测量近视患者低阶像差的临床研究
短句来源
     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。
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     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
     Measurement of Wave-front Aberrations in the Children's Eyes Using Asclepion Shack-Hartmann Aberrometer
     Asclepion像差测量儿童波前像差的初步研究
短句来源
     Asclepion Shack-Hartmann aberrometer in measuring the ower order aberration
     Asclepion波前像差测量低阶像差的临床应用
短句来源
     Objective To value the accuracy of Zywave aberrometer in measuring refractive errors for myopic eyes.
     目的评价Zywave波前像差测量近视眼屈光不正的准确性。
短句来源
     Scotopic pupil diameter in myopic young population by using WaveScan aberrometer
     WaveScan波前像差测量暗适应下瞳孔的直径
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  wavefront analyzer
The actual experiment was performed using a modified commercially available wavefront analyzer.
      
Performance of the force sensor, the optical wavefront analyzer, and the actuator under development for JNLT is reported.
      


Objective:To investigate the optical properties of postoperative cataract eyes by measuring the wavefront aberrations of pseudophakic patients after phacoemulicification and comparing the aberrations with those of normal controls.Methods:Routine phacoemulsification(alcon legacy 2000) and IOL implantation(alcon corneal) were performed on 31 eyes of 24 cataract patients ranging in age from 15 to 73 years(mean=51.1 yrs). Wavefront aberrations of the postoperative patients and those of 33 eyes of 17 normal controls...

Objective:To investigate the optical properties of postoperative cataract eyes by measuring the wavefront aberrations of pseudophakic patients after phacoemulicification and comparing the aberrations with those of normal controls.Methods:Routine phacoemulsification(alcon legacy 2000) and IOL implantation(alcon corneal) were performed on 31 eyes of 24 cataract patients ranging in age from 15 to 73 years(mean=51.1 yrs). Wavefront aberrations of the postoperative patients and those of 33 eyes of 17 normal controls were measured using an aberrometer(SuZhou BriteEye Model WFA 1000). The aberrometer is a subjective instrument which provides wavefront aberration maps and 35 values of zernike functions. Three measurements were taken for each eye,and the RMS values of the overall wavefront errors and the zernike aberrations in each order(2nd to 7th orders) were calculated with MATLAB software and a paired t test was performed.Results:There were substantial variations in the RMS values of the over all post operative wavefront aberrations among the 31 pseudophakic eyes(raninging from 0.34 to 2.84 microns,mean=1.31 microns). The differences in mean RMS values was statistically significantly greater than those for the normal controls(t=4.264,P<0.0001). The differences in RMS values between the pseudophakic eyes and normal eyes were also statistically significant in all of the 6 orders of zernike aberrations(minimum,t=3.179 and P<0.019).Conclusion:Pseudophakic patients have stronger wavefront aberrations after phacoemulsification than normal eyes. Measurements of wavefront aberrations may provide useful information to improve cataract surgery and IOL design.

目的 :评价白内障超声乳化联合人工晶状体植入术后的波前像差 ,以阐明白内障手术后人工晶状体眼的光学特性。方法 :采用对照研究的方法 ,试验组为常规超声乳化联合人工晶状体植入手术后的单纯白内障患者 2 4例 31眼 ,年龄范围 :15~ 73岁 (平均 =5 1.1岁 ) ;对照组为年龄相匹配的志愿者 17位 33眼 ,排除眼科疾病 ,年龄范围 :2 5~ 6 8岁(平均 =5 0 .7岁 )。使用主观型波前像差仪 (SuZhouBriteEye收稿日期 :2 0 0 2 -10 -10 ;修回日期 :2 0 0 3 -0 1-2 0作者简介 :熊瑛 (1973 -) ,女 ,山西太原人 ,医学博士 ,研究方向 :视光学和白内障。通信作者 :褚仁远 (E -mail:xy0 62 9@sina .com)ModelWFA 10 0 0 )进行波前像差检测 ,通过MADLAB软件数据处理计算出总体像差和分阶像差的均方根 (RMS)以及像差图。结果 :试验组总体像差的RMS平均达 1.31μm(范围为 0 .34~ 2 .84 μm) ;对照组的RMS平均达 0 .5 4 μm(范围为0 .2 0~ 1...

目的 :评价白内障超声乳化联合人工晶状体植入术后的波前像差 ,以阐明白内障手术后人工晶状体眼的光学特性。方法 :采用对照研究的方法 ,试验组为常规超声乳化联合人工晶状体植入手术后的单纯白内障患者 2 4例 31眼 ,年龄范围 :15~ 73岁 (平均 =5 1.1岁 ) ;对照组为年龄相匹配的志愿者 17位 33眼 ,排除眼科疾病 ,年龄范围 :2 5~ 6 8岁(平均 =5 0 .7岁 )。使用主观型波前像差仪 (SuZhouBriteEye收稿日期 :2 0 0 2 -10 -10 ;修回日期 :2 0 0 3 -0 1-2 0作者简介 :熊瑛 (1973 -) ,女 ,山西太原人 ,医学博士 ,研究方向 :视光学和白内障。通信作者 :褚仁远 (E -mail:xy0 62 9@sina .com)ModelWFA 10 0 0 )进行波前像差检测 ,通过MADLAB软件数据处理计算出总体像差和分阶像差的均方根 (RMS)以及像差图。结果 :试验组总体像差的RMS平均达 1.31μm(范围为 0 .34~ 2 .84 μm) ;对照组的RMS平均达 0 .5 4 μm(范围为0 .2 0~ 1.6 2 μm)。两组比较采用独立样本配对t检验 ,试验组的总体像差明显增高 (t =4 .2 6 4 ,P <0 .0 0 4 ) ,试验组 2~ 7阶的分阶像差明显增高 (mint=3.179andP <0 .0 19) ,两组之间的差异有统计学意义。结论 :超声乳化白内障手术后人工晶状体眼的波前像差比年龄匹配的自然晶状体眼的显著增

Objective To analyze the distribution of the higher order aberrations in the population of Chinese with myopia and astigmatism and determine whether the pupil size, degree of myopia and astigmatism affects the higher order aberrations. Methods Using a Tscherning method, 147 myopic and astigmatism eyes were evaluated before LASIK. The root mean square (RMS) values of higher order aberrations for each subject with pupil diameters of 4.5, 5.0, 5.5, 6.0, 6.5 and 7.0 mm were calculated. The subjects were divided...

Objective To analyze the distribution of the higher order aberrations in the population of Chinese with myopia and astigmatism and determine whether the pupil size, degree of myopia and astigmatism affects the higher order aberrations. Methods Using a Tscherning method, 147 myopic and astigmatism eyes were evaluated before LASIK. The root mean square (RMS) values of higher order aberrations for each subject with pupil diameters of 4.5, 5.0, 5.5, 6.0, 6.5 and 7.0 mm were calculated. The subjects were divided into following groups: high myopia (>-6.00 D)and low myopia (≤-6.00 D); astigmatism groupⅠ(≥0.75 D) and astigmatism group Ⅱ(<0.75 D). Results The root mean square(RMS) values was decreased from 3rd order to sixth order aberrations in the same eye. The individual difference was from 6.1-fold to 36.6-fold in same type of aberration. All types of aberrations, in particular spherical and coma aberration, was increased significantly with increasing pupil size. Secondary spherical aberration, spherical and secondary coma aberration were affected by myopia, but coma aberration; astigmatism only affected the coma aberration , but spherical aberration. Conclusions The aberrations were increased with the increasing of refractive error such as myopia and astigmatism. Spherical aberration is more common in high myopia, Coma aberrations is related with astigmatism. (Chin J Ophthalmol, 2004,40:13-16)

目的 了解国人近视散光患者眼球高阶像差的分布、瞳孔直径、近视、散光度数对高阶像差的影响。方法 使用依据Tscherning原理设计的AllegrettoWave波前像差仪 ,对 14 7只眼准分子激光原位角膜磨镶术 (LASIK)前的近视散光情况进行检查 ,分别提取当瞳孔直径为 4 0、4 5、5 0、5 0、5 5、6 0、6 5及 7 0mm时高阶像差的均方根 (RMS)值 ,根据近视和散光的度数高低分组对比研究分析。结果 同一只眼内从 3阶到 6阶像差的RMS值呈递减趋势 ;同阶像差内最大值与最小值相差6 1至 3 6 6倍 ;随着瞳孔的增大 ,高阶像差相应增加 ,尤其以 3阶的彗差和 4阶的球差增速快。当瞳孔小时近视度数只影响次级球差 (第 6级 ) ,随着瞳孔增大 ,近视度数既增加次级球差 ,也增加球差 (第4级 ) ,当瞳孔直径≥ 5 0mm时 ,次级彗差 (第五级 )也增加 ,但在任何瞳孔直径下 ,近视度数对彗差无明显影响。散光度数对高阶像差的影响 :当瞳孔直径≥ 6 5mm时 ,散光度数即使第 3级彗差增加 ,也使第 5阶的次级彗差增加 ,但在任何瞳孔直径下 ,散光度数对球差无明显...

目的 了解国人近视散光患者眼球高阶像差的分布、瞳孔直径、近视、散光度数对高阶像差的影响。方法 使用依据Tscherning原理设计的AllegrettoWave波前像差仪 ,对 14 7只眼准分子激光原位角膜磨镶术 (LASIK)前的近视散光情况进行检查 ,分别提取当瞳孔直径为 4 0、4 5、5 0、5 0、5 5、6 0、6 5及 7 0mm时高阶像差的均方根 (RMS)值 ,根据近视和散光的度数高低分组对比研究分析。结果 同一只眼内从 3阶到 6阶像差的RMS值呈递减趋势 ;同阶像差内最大值与最小值相差6 1至 3 6 6倍 ;随着瞳孔的增大 ,高阶像差相应增加 ,尤其以 3阶的彗差和 4阶的球差增速快。当瞳孔小时近视度数只影响次级球差 (第 6级 ) ,随着瞳孔增大 ,近视度数既增加次级球差 ,也增加球差 (第4级 ) ,当瞳孔直径≥ 5 0mm时 ,次级彗差 (第五级 )也增加 ,但在任何瞳孔直径下 ,近视度数对彗差无明显影响。散光度数对高阶像差的影响 :当瞳孔直径≥ 6 5mm时 ,散光度数即使第 3级彗差增加 ,也使第 5阶的次级彗差增加 ,但在任何瞳孔直径下 ,散光度数对球差无明显影响。结论 高阶像差在个体中存在较大差异 ,瞳孔直径、近视和散光程度对高阶像差有明显的影响。 (中华眼科杂志 ,2 0 0 4,40 :13 16)

Objective To demonstrate the effect of the pupillary dilation on the lower order wavefront aberration measured with the Asclepion Shack-Hartmann aberrometer an to compare the second order aberration with the results of autorefraction under dilated pupilcondition,further to determine whether pupillary dilation is necessary when taking the measurement.Methods 76 subjects were measured objectively using the Asclepion Shack-Hartmann aberrometer both under mesopic state and after pupillary dilation.Then,autorefraction...

Objective To demonstrate the effect of the pupillary dilation on the lower order wavefront aberration measured with the Asclepion Shack-Hartmann aberrometer an to compare the second order aberration with the results of autorefraction under dilated pupilcondition,further to determine whether pupillary dilation is necessary when taking the measurement.Methods 76 subjects were measured objectively using the Asclepion Shack-Hartmann aberrometer both under mesopic state and after pupillary dilation.Then,autorefraction was taken with computerized refractor(NIDEK,ARK-700)with pupillary dilation.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.The differences of the measured data in these three methods were not statistically significant both in sphere and astigmatism(P>0.05).Conclusions On the whole,under mesopic state with original pupil size,accommodation can be neglected during the wavefront aberration measurement of the lower order iwht the Asclepion Shack-Hartmann aberrometer.Usually,it is unnecessary to get the pupil dilated.Almost same refraction results could be taken measure with the aberrometer.

目的 比较运用Asclepion波前像差仪在原瞳暗视和药物散瞳两种状态下测得的低阶像差 (lowerorderwavefrontaberration) ,并将测量结果与散瞳电脑验光的屈光值相比较 ,以探讨在应用Asclepion波前像差仪时散瞳的必要性及其测量低阶像差的可靠性。 方法 随机选取来我院接受准分子激光手术的术前检查的近视患者 76例 ( 76眼 ) ,分别于原瞳暗视和药物散瞳两种状态下 ,运用Asclepion波前像差仅测定患者的波前像差 ,记录低阶像差值并对结果进行统计分析。在散瞳状态下再用NIDEK (ARK -70 0 )验光仪对患眼进行电脑自动验光。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。三者相比 ,球镜度、柱镜度和等效球镜度的差异经单因素方差分析均没有显著性意义(P >0 0 5 )。结论 应用Asclepion波前像差仪测量眼的低阶像差 ,调节通常可以忽略 ,检查可在原瞳暗视状态下进行而无...

目的 比较运用Asclepion波前像差仪在原瞳暗视和药物散瞳两种状态下测得的低阶像差 (lowerorderwavefrontaberration) ,并将测量结果与散瞳电脑验光的屈光值相比较 ,以探讨在应用Asclepion波前像差仪时散瞳的必要性及其测量低阶像差的可靠性。 方法 随机选取来我院接受准分子激光手术的术前检查的近视患者 76例 ( 76眼 ) ,分别于原瞳暗视和药物散瞳两种状态下 ,运用Asclepion波前像差仅测定患者的波前像差 ,记录低阶像差值并对结果进行统计分析。在散瞳状态下再用NIDEK (ARK -70 0 )验光仪对患眼进行电脑自动验光。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。三者相比 ,球镜度、柱镜度和等效球镜度的差异经单因素方差分析均没有显著性意义(P >0 0 5 )。结论 应用Asclepion波前像差仪测量眼的低阶像差 ,调节通常可以忽略 ,检查可在原瞳暗视状态下进行而无需药物散瞳。Asclepion波前像差仪测得的低阶像差能较准确的反映眼的屈光状态。

 
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