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Objective To investigate the variation of the refractive errors in the middle and old-aged. 目的了解中老年人屈光不正变化规律。
Objective To evaluate the effects of conventional therapy on refractive errors in patients with amblyopia. 摘要目的探讨屈光不正性弱视的临床疗效。
Results: The disease cause of visual fatigue were multifold, such as refractive errors, computer operating, recessive strabismus and so on. 结果:视疲劳为多种因素所致,屈光不正、操作电脑终端、隐斜视等因素最常引起症状。
The goal of this project is to provide a lowest cost refractometer that will measure refractive errors in the eye including astigmatism. 此项专题将提供一个测量眼睛屈光异常（包括散光）的低成本折射计。
Conclusion The crystal glass and retin of combining operation was safety at the same time treat the detached retina, cataract and correct refractive errors. 术后屈光度均为轻度近视或低度远视(硅油填充眼)结论联合手术安全可行,可同时治疗视网膜脱离、内障并纠正屈光不正。
In addition, the eyes of refractive errors, myopia and farsightedness or astigmatism, intraocular foreign body, Daojie, conjunctivitis and keratitis, also can lead to eyelid jump. 此外，眼睛屈光不正、近视、远视或散光、眼内异物、倒睫、结膜炎、角膜炎等也可导致眼皮跳。
Conclusion The crystal glass and retin of combining operation was safety at the same time treat the detached retina ,cataract and correct refractive errors. 术后屈光度均为轻度近视或低度远视(非硅油填充眼)。结论联合手术安全可行,可同时治疗视网膜脱离、白内障并纠正屈光不正。
The light rays will focus either in front of or behind the retina resulting in "refractive errors" such as nearsightedness farsightedness and astigmatism. 在光线的重点不是在前面或后面的视网膜，在“屈光不正，如近视，远视和散光”造成的。
The leading cause of blindness and low visual in subjects in turn was cataract (47.09%), ocular fundus disease (20.4%), refractive errors (9.52), ceratonosus (7.59%). 在盲与低视力人群中致病原因的前几位依次是白内障(47.;9%25)，眼底病(20
However, as soon as the spherical and cylindrical refractive errors are corrected by laser, higher-order aberrations of anterior corneal surface also result. 利用此方法来改变角膜的弧度，以达到改变角膜屈光能力的效果。
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 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 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。
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。