Preventing dry itchy eyes and maintaining normal vision.
预防眼球干燥、作痒等症状，维持正常的视力。
We usually have less information than from normal vision.
通常我们比从正常的视觉所得到的信息要少。
Another is to look at the image cross-eyed and then shift back to normal vision.
第二种方法是斜着看图，然后转回到正常视角。
The left eye was entirely normal, with normal vision and refraction for his age.
以年龄而言，他的左眼视力和屈折度完全正常。
Normal vision can usually be restored by wearing corrective glasses or contact lenses.
一般视力通常可以经由配戴矫正眼镜或隐形眼镜而恢复。
If it were a real phenomenon, versions of it should be widespread, the way normal vision is.
如果读心术真实存在的话，它的版本应该更广泛，方式更正常。
The viewfinder eyepiece has a built-in –1 correction lens (suitable for normal vision).
取景器的目镜是一片-1的矫正镜片（适合大多数普通视力）。
The study involved 56 children, 38 with various visual impairments and 18 with normal vision.
这项研究有56个儿童参加，其中38有各种各样的视觉损害，18个视觉正常。
With normal vision, you enjoy a full range of clear vision – near, intermediate and distance.
视力正常，您享受清晰视野全范围-近期，中期和距离。
I am a healthy twenty-three year old, born with normal vision, normal hearing and normal speech.
我是一位23岁的健康女孩，视力正常，听力正常，语言表达正常。
Instead I have exercised my eyes and after a few weeks of exercising my eyes, they have returned back to normal vision.
相反，我一直做眼操，数周之后，我的眼睛就恢复以往的视力水平了。
Until we can do this with a chip in our brain, a new device has come out that overlays video onto our normal vision using special glasses.
在我们可以用大脑中的芯片来做这件事情之前，一种可利用特殊眼镜将视频叠加到我们正常的视觉之上的新设备已经面世。
It won't entirely restore normal vision, say the researchers, but it will offer just enough sight to help a blind person navigate a room.
它将不会完整的恢复正常的视觉，研究者称，但是其会为一位盲人提供正好足够的视力帮助他在房间里行动。
Children who have vision problems due to cataracts usually need surgery to prevent lasting vision loss and to ensure normal vision development.
存在由白内障所致视力问题的儿童常常须要手术来防止永久性视力丧失以及确保视力的正常发育。
The positive correlation between cigarette smoking and the incidence of lung cancer; the negative correlation between age and normal vision.
吸烟与肺癌发病的正比关系；年龄与正常视力之间的反比关系。
Wearing a small chip in your eye (normal vision is not impaired) looks strange enough, but having a giant monocle taped to your head looks stranger still.
眼睛里戴一个小芯片(正常视力不会被降低)看起来就很怪，而头上贴着一个大单片眼镜看起来就更奇怪。
Myopic people are also more bothered by "floaters" in their vision than people with normal vision, sometimes to the point where it seriously interferes with their lives.
近视患者也比视力正常的人讨厌眼中的“线状物”，有时候严重地干扰他们的生活。
Researchers say the technique returned normal vision to nearly 100 people. They said one of the patients could see clearly for the first time in more than 60 years.
研究者称该技术让大约一百位患者恢复了正常的视力。他们说其中一名患者在眼瞎60年之后首次重新看见了一个明亮的世界。
One case concerns an eleven-one schoolgirl, Vera Petrova, who has normal vision but who can also perceive things with different parts of her skin, and through solid walls.
一则报道说一位名叫维拉裴楚娃的十一岁女学生，有着正常视力，却也能够用自己不同部位的皮肤感知事物，并可透过坚固的墙看见物体。
Zrenner and his team implanted their device in three patients, all of whom had been born with normal vision, but had become almost totally blind due to retinal degeneration.
Zrenner和她的团队对三个患者进行了移植，这三个患者都是由于后天的视网膜退化引起的完全失明。
In the US, roughly one-third of our children, although born with normal vision, end their school years with abnormal vision, condemned to wearing glasses the rest of their lives.
在美国，大约三分之一的儿童，出生时视力正常，毕业时视力异常，只好戴上眼镜。
Extraocular muscles play an important role in the normal movement of globe and formation of normal vision, whose lesions may result in strabism and ocular motor disturbance.
眼球外肌是维持眼球正常运动及形成正常视觉的关键因素 ，其病变表现为斜视及眼球运动障碍 。
Dr Justin Sherwin and his research team concluded that short-sighted children spent on average 3.7 fewer hours per week outdoors than those who either had normal vision or were long-sighted.
贾斯汀。宣威博士和他的研究小组得出结论，相比于那些视力正常或有远视的孩子，近视孩子的每周平均户外时间少了3.7个小时。
After all it is perfectly normal indeed deeply human to be moved when nature presents us with a vision of great beauty.
毕竟，深为自然界呈现给我们的伟大美景而感动完全是正常的、具有深刻人性的事。
The color sensitivity of normal human vision is rarely surpassed even by sophisticated technical devices.
普通人类的视觉感受色彩的灵敏程度，甚至连精密的技术装备都很难超越。
I am quite admiring those authors for their unique vision and angles of seeing problems. They can discover something normal to us, but actually quite unique.
我相当佩服写论文的作者独到的眼光与视角，发现一些我们经常当成是理所当然可是却不同寻常的东西。
After a couple of minutes my vision cleared, and the movement of my left eye seemed to return to normal.
几分钟过后，我的视线渐渐清晰开来，而我的左眼看起来也回复了正常。
For a doctor, she speculated, super color vision might give her the ability to tell whether a patient is ill just by noticing subtle changes in skin tone that a normal doctor wouldn't see.
她推测，作为一个医生，超色觉可能可以使她仅仅通过观察普通医生看不到肤色细微变化而判断别人是否生病。
Keep finger within normal field of vision.
手指停留在正常视野范围内。
Congratulations, your near vision is normal.
恭喜你，你的近视力是正常的。
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