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。

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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。

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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。

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And it can lead to headaches and blurred vision. "You're taking that normal relationship which has been coupled in the brain for years.

VOA: standard.2010.02.21

Normal vision is based on more than one hundred million receptors in each eye that process light, say experts.

WSJ: FDA Approves Bionic Eye

It works like bifocals in that you look up to see the display so your normal vision below is never blocked.

WSJ: The Weekend Interview With Sebastian Thrun: What's Next for Silicon Valley?

Although the resulting vision is not the same as when these patients had normal vision, investigators involved in the clinical trial of the Argus II are eager about the approval.

ENGADGET: FDA clears Argus II 'bionic eye' for sale in the US (video)