什么是屈光不正?
The need to correct refractive error is determined by its effect on vision.
是否需要矫治折射偏差取决于它对视力的影响。
Objective To assess trends in refractive error changes in children with mixed astigmatism.
目的探讨儿童混合性散光的屈光演变规律。
Efficacy measures include axial length, keratometric power and mean absolute refractive error.
有效测量值包括眼轴长度,角膜曲率和绝对屈光误差值等内容。
Wavefront aberrations were found to provide a good prediction of the conventional refractive error.
人们亦发现波前像差能为传统的屈光不正提供良好的预测。
The regression coefficient between corneal power and the refractive error increased from apex to peripheral area.
角膜中央到周边曲率与等效球镜度的回归系数逐渐增加。
A new method of radiowave refractive error correction is given, which adopts atmospheric remote sensing by microwave radiometer.
提出了一种电波折射误差修正的新方法,即用微波辐射计采用大气遥感的方法进行电波折射实时修正。
Conclusion: the postoperative refractive error becomes more plus when the posterior surface of the lens is fused with silicone oil.
结论:术后患者的屈光度偏向正是由于晶体后表面被硅油融合后其屈光度的表现。
Objective: to investigate the changes of corneal shape and how to correct the refractive error after penetrating keratoplasty (PKP).
目的:探讨穿透性角膜移植术(pkp)后的角膜形状改变以及如何进行屈光矫正。
However because of the refraction effect in the troposphere there is refractive error in the parameters measured in positioning system.
但由于对流层中的折射效应,定位系统所测目标的仰角、距离等参量均存在一定的折射误差。
He has strong influence in the field of refractive error in ophthalmology. He gained great trust and support by numerous myopia patients.
在眼科屈光届具有较强的影响力,深得广大近视眼朋友信任和厚爱。
The reduced vision that results from abnormal focusing (refractive error) can cause the children to screw up their eyes and complain of headaches.
因为不正常聚焦(折射偏差)造成的视力下降会造成孩童眯眼并有头痛的困扰。
Objective To test contrast visual acuity (CVA) at bright and dark backgrounds for myopes with different modalities of refractive error correction.
目的在亮、暗两种环境条件下,检测近视眼患者配戴三种矫正方式的对比度视力。
This, combined with the information provided by the studies described above, emphasizes the role of optical defocus in inducing refractive error change.
结合前面讲到的,这突出了光学离焦在引起屈光不正病因中的重要作用。
This study confirms an inverse association between ACD and age, female gender, and spherical refractive error. Eyes with shallower ACDs had narrower angles.
本研究证实前房深度与年龄、性别和球镜屈光不呈负相关,前房越浅房角越窄。
Objective To explore the distribution of optical wavefront aberrations and the relation between the higher order aberrations and refractive error in children.
目的探讨儿童波前像差的分布情况以及儿童高阶像差与屈光不正之间的关系。
Ramesh Raskar: the World Health Organization estimates that over half a billion people have uncorrected refractive error, which is affecting their daily livelihood.
拉梅什·拉斯卡尔:世界卫生组织推测,全球有5亿多人因患屈光不正而影响到日常生活。
Methods Infrared and vernier means were used in the examination of dark focus. The stability, relationship between dark focus and refractive error were studied.
方法:主要用激光散斑法和游标法进行暗焦点检查,并在与屈光不正的关系及仪器的稳定性进行了应用研究。
The objectives of this review were to determine whether PRK or LASIK leads to more reliable, stable and safe results when correcting a hyperopic refractive error.
这篇回顾的目的为确定矫正远视的屈光偏差时,PRK或LASIK是否会造成较可信赖,稳定及安全的结果。
Your results will depend on your specific refractive error and other factors. People with a low grade of nearsightedness tend to have the most success with refractive surgery.
结果取决于具体的屈光误差和其他因素,屈光手术对近视度数低的人最成功。
The refraction effect on positioning of the over-the-horizon radar signal is analyzed. The charts of the refractive error(elevation error and range error) are also given.
主要分析对流层的折射效应对超视距雷达信号定位的影响,并且给出相应的折射误差图(仰角误差和距离误差);
The theme of this year's event, low vision and refractive error, draws attention to the hundreds of millions of people who are functionally blind simply because they need spectacles.
今年事件的主题为低视力和屈光不正,提醒注意数亿只是因为需要眼镜而功能性失明的人。
The main effect on the GPS signals of ionosphere and ionospheric refractive model are researched in this paper; then the dual-frequency corrected model of ionospheric refractive error is concluded.
研究了电离层对GPS观测信号的主要影响及电离层折射误差模型,总结了电离层双频改正模型。
Based on the corneal data, the effects of equivalent refractive index and error in radius of curvature on the corneal vergence measurement after refractive surgery are studied theoretically.
在角膜数据的基础上,从理论上分析了等效折射率和曲率半径测量误差对屈光手术后角膜光焦度测量的影响。
The average prediction error by this model is 0.959% for the refractive index of 95 amorphous homopolymers.
由该模型对95个聚合物的折光率进行预测,平均相对误差为0.959%。
Then, the error produced by sphericity error, material refractive rate error and optical center error of cat eye are discussed.
从猫眼的球度误差、材料折射率误差和光学中心误差几个方面对猫眼产生的光学误差进行了分析。
The instrumental error of the sensor was estimated through measuring to the refractive index matching liquid.
通过测量折射率匹配液,对传感器误差进行了估计。
This instrument can also measure the refractive-index homogeneity, the flatness, the Angle error, the wedge Angle of crystal element.
仪器还可测量晶体材料折射率均匀性、晶体元件面形、角度、平行度等。
The result indicates that the error of the test for refractive index of polymer is less than 5%, while for volume percent of liquid crystal, the maximum error reaches about 10%.
结果表明,对聚合物分散液晶聚合物折射率的误差在5%以内,而对液晶体积分数的测试误差较大,达到10%左右。
In the paper, the method of test about OE-PCB was reviewed. Including mainly Refractive Index, Optical Propagation Loss, Surface Roughness, Eye Pattern, Bite Error Rate test and Environment Impact.
文章介绍了印制光-电路板的测试方法,主要包括光波导的折射率测试、光传输损失测试、表面粗糙度测试、眼图测试、误码率测试、环境测试。
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