We may wish to provide the blind with artificial eyes that enable them to see-and this is not just a silly, unrealizable pipe dream.

我们说不定能为盲人提供人造眼睛，使他们重见光明——而这已不只是一种天真的、不可实现的幻想。

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AIM: To investigate the relationship between mobility of artificial eyes and materials, thickness, conjunctiva surplus square and conjunctiva depth.

目的：探讨义眼片的材料、厚度及配戴眼的结膜囊剩余面积、深度等因素对其活动度的影响。

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For decades, scientists and eye doctors have been trying to develop artificial eyes that would return the sense of sight to blind and visually impaired people.

数十年来，科学家和眼科医生一直努力研制人造眼球，以使盲人和视力受损者重见光明。

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Doctors have implanted artificial retinas into the eyes of three patients who had lost almost all of their vision.

BBC: Doctors fight blindness with eye implant

So even when their eyes are closed they can get a sense of whether an artificial arm is extended, or if there is resistance to a grasping motion, making the limb feel less detached and unnatural than an EMG device.

ECONOMIST: Rewiring nerves