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- To understand what refractive surgery does, we need to first know what a refractive error is. 我们要了解激光矫视是甚么一回事,便要首先掌握何谓屈光不正。
- The effect of atmospheric refraction error on observed value is a very thorny problem in EDM trigonometric leveling. 在光电测距三角高程测量中,大气折光对观测量的影响是一个非常棘手的问题。
- The major reason of low vision is refractive error(54.41%),cataract(39.08%)and keratopathy(6.51%). 而在低视力人群中;致病原因的前三位因素是屈光不正54.;41%25;白内障39
- Objective To explore the practical value of Mydrin-P in children with refraction error. 目的探讨美多丽-P在儿童散瞳验光中的应用价值。
- Objective:To evaluate the accuracy and application of a hand-held autorefractor in refractive error study in children. 目的:了解手持自动验光仪的准确性及其在儿童屈光不正调查中的应用价值。
- Refractive error more than -15.OD,, axial length over 29.0mm, and age more than 45 years old are risk factors for the development of early myopic maculopathy. 近视度数超过-15.;0D,眼轴长超过29
- Photorefraction is a method which can fast determine the refractive error by capturing a frame of pupillary image remotely. 摄影验光是一种根据一定距离拍摄的眼瞳图像快速确定屈光误差的测量方法。
- The refraction effect of light-wave when it propagates in atmosphere brings refraction error to optic radar's measurement. 由于大气对光波传播引起的折射效应,使得光学雷达测量中产生折射误差。
- Hopflied troposphere model and accurate troposphere model in radiowave refraction error modify in troposphere are gived. 给出了对流层电波折射误差修正应用中的霍普菲尔德大气模型和精确大气模型。
- The radio wave propagation velocity is slowed and the ray producing bend but to the asymmetry of the atmospheric medium, The refraction error is produced. 由于空中大气介质的不均匀性使得电波传播速度减慢射线产生弯曲,从而产生折射误差。
- It is not to eliminate glasses and contact lenses completely. You may still need glasses for night driving and or reading, depending on your age and initial refractive error. 但基于不同人仕的年及度数的差异,手术后,病人可能在某些场合如长时间阅读或晚间驾驶时仍需佩戴眼镜。
- Methods:The visual acurities of 84 cases(118 eyes) with optic disk abnormality and refractive error were corrected by adjusting the diopter of spectacles. 方法:对84例传统检影试镜方法视力得不到矫正,视盘形状异常者,调整屈光镜片。
- Conclusion:It is important to know well the shape of disk and the rule of correction the refractive error for prevention and cure the strabismus and amblyopia. 结论:了解视盘形状及屈光镜片的调整规律,对防治斜视、弱视有重要意义。
- 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。
- 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。
- He overlooked a spelling error on the first page. 他没有看出第一页中有个拼写错误。
- The refraction error is a main error source in the measurementdata.It is also a main factor affecting the satellite tracking and control accuracy and orbit determination accuracy. 摘要折射误差是观测数据包含的主要误差源之一,也是影响卫星跟踪与控制以及轨道确定精度的主要因素。
- Refracting light without spectral color separation. 消色差的,不分光的折射光没有光谱颜色分离的
- He learned technical skills by trial and error. 他通过不断摸索掌握技能。