The three most common refractive errors are
最常见的屈光不正有三种
Uncorrected refractive errors (myopia, hyperopia or astigmatism), 43 %.
未经矫正的屈光不正(近视、远视或散光)，43%。
There are three primary types of refractive errors: myopia, hyperopia and astigmatism.
有三个主要类型的屈光不正：近视，远视和散光。
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。
The most common types of refractive errors are myopia, hyperopia, presbyopia, and astigmatism.
最常见的屈光不正有：近视、远视、老花眼和散光。
These are called refractive errors. They often go untreated in countries with limited health care systems.
这些视力问题被称为屈光不正，在医疗条件有限的国家经常得不到治疗。
Radiowave refractive errors correction methods have defect of computing complexity and no real time in common use.
一般常用电波折射误差修正方法存在计算复杂且不具有实时性缺陷。
Together these vision conditions are referred to as refractive errors because they affect how the eyes bend or "refract" light.
这些症状统称为屈光不正，因为它们能影响进入眼球的光线。
Of these, 12 million children are visually impaired due to refractive errors, a condition that could be easily diagnosed and corrected.
其中，1200万儿童视力因屈光不正受损，这种病情易于诊断和矫正。
AIM: to assess the prevalence of refractive errors in middle school students in Lanzhou city and explore the risk factors for myopia.
目的：调查兰州市中学生屈光不正的发病率并探讨近视发病的危险因素。
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。
Refractive errors cannot be prevented, but they can be diagnosed by an eye examination and treated with corrective glasses, contact lenses or refractive surgery.
屈光不正无法预防，但可通过验光作出诊断，并可选择眼镜、隐形眼镜或手术加以矫正。
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。
Globally, uncorrected refractive errors are the main cause of visual impairment; cataracts remain the leading cause of blindness in middle - and low-income countries.
在全球范围内，未经矫正的屈光不正是视力损害的主要原因，在中、低收入国家，白内障仍然是致盲的主要原因。
The model not only can be applied to the correction of refractive errors such as myopia and astigmatism, but also can be used in wavefront guided laser refractive surgery.
模型有较强的通用性，适用于传统仅矫正屈光不正(近视、远视、散光)的光学区模型，也适用于波前像差引导的激光眼屈光手术。
The utility model relates to a hydrophilic flexible keratoscope with struck holes for the correction of refractive errors in the ophthalmology, belonging to the medical supplies.
本实用新型涉及一种用于眼科屈光矫正的击孔亲水软性角膜镜，属医疗用品。
It occurs when the eye cannot clearly focus the images from the outside world. The result of refractive errors is blurred vision, which is sometimes so severe that it causes visual impairment.
屈光不正是一种非常常见的眼部疾病，使眼睛无法对外界物体清晰地聚焦，而导致视力模糊，严重的时候可以引起视力损害。
While the epidemiology of refractive errors and glaucoma have been well characterized, there are few population-based knowledge on diabetic retinopathy and age related macular degeneration.
亚洲人群屈光不正和青光眼的流行病学特征已经比较明确，但对糖尿病视网膜病变和年龄相关性黄斑变性等重要致盲原因的研究尚有欠缺。
In response to the increasing burden of chronic eye disease WHO is now developing policies and guidelines for diabetic retinopathy, glaucoma, age-related macular degeneration and refractive errors.
为应对慢性眼疾日益沉重的负担，世卫组织目前正在制定针对糖尿病性视网膜病变、青光眼、年龄相关性黄斑变性和屈光不正的政策和准则。
The exact measurement of keratometry and anterior chamber depth are of major importance for the implantation of intraocular lens (IOL) in refractive surgery and the research of refractive errors.
准确测量角膜曲率和前房深度对于屈光手术中人工晶体屈光度的计算以及屈光不正的研究有着重要的意义。
In order to raise the accuracy of radars, the warship-radar generally depends on the electric-wave refractive correction of errors.
为了提高雷达精度，舰船雷达一般都进行电波折射误差修正。
With the development of the modern space techniques, the errors of atmospheric refractive delay has become one of the main keys in improving computation accuracy.
随着新空间技术观测精度的不断提高，大气传播误差的研究已经成为改进观测精度的主要途径之一。
With the development of the modern space techniques, the errors of atmospheric refractive delay has become one of the main keys in improving computation accuracy.
随着新空间技术观测精度的不断提高，大气传播误差的研究已经成为改进观测精度的主要途径之一。
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