With nearsightedness, distant objects appear blurry while very close objects usually appear more clearly.
随着近视，远处的物体出现模糊，而非常接近物体通常显得更清楚。
Among children who spend the same amount of time outside, the amount of near work has no correlation with nearsightedness.
孩子花的时间等量情况下，近视和所做的“纯工作”量是没有相关性的。
There is no agreement about whether LASIK is superior to PRK or vice versa for people with mild to moderate nearsightedness.
但是对于轻度至中度近视患者来说，在LASIK手术是否优于PRK手术这一问题上却仍无定论。
Nearsightedness associated with cataracts in the center of the lens is often classified with the pseudomyopias, but it is actually a permanent change in the way light focuses in the eye.
与发生于晶状体中心白内障相关联的近视被归于假性近视一类，但它确实且永久地改变了光线在眼内聚焦的方式。
It is also considered the best procedure for correcting high nearsightedness (greater than 7 diopters), although the results of surgery become harder to predict with higher amounts of nearsightedness.
尽管高度近视使手术结果变得难以预测，但它仍被认为是纠正高度近视(大于700度)的最好手术方法。
We do this with eye sight: Nearsightedness could have been fatal for people whose ability to survive depended on spotting dinner off in the distance.
我们就把该愿望付诸于矫正我们的视力：近视眼给依靠在远处发现晚宴的能力而生存的人来说是致命的。
Photorefractive keratectomy (PRK). PRK is sometimes used if you have a low to moderate degree of nearsightedness or farsightedness, or if you have nearsightedness with astigmatism.
屈光性角膜切除术(PRK)：当你有低于中等度数的近视或者远视，或者近视加散光，有时会选择prk。
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。
Astigmatism frequently occurs with other vision conditions like nearsightedness (myopia) and farsightedness (hyperopia).
散光和近视还有远视一样，都是常见的眼部疾病。
A common sign of nearsightedness is difficulty with the clarity of distant objects like a movie or TV screen or the chalkboard in school.
近视的一个常见现象是想把远处的事物看清楚会觉得比较困难，比如电影、电视屏幕或者是黑板。
Eye doctors in Shanghai found out recently that the nearsightedness among primary and middle school students has something to do with the color of the paper in their textbooks and notebooks.
最近上海的眼科医生发现小学和中学生的近视与课本和练习本所用纸张的颜色有关。
Using the information obtained from these tests, along with the results of other tests of eye focusing and eye teaming, your optometrist can determine if you have nearsightedness.
验光师会通过检测收集这些数据以及眼聚光和眼分组测试的结果来判断你是患有近视。
Using the information obtained from these tests, along with the results of other tests of eye focusing and eye teaming, your optometrist can determine if you have nearsightedness.
验光师会通过检测收集这些数据以及眼聚光和眼分组测试的结果来判断你是患有近视。
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