Worldwide 42 million people are without sight, according to statistics from Research to Prevent Blindness, Inc. 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. The idea of a "bionic eye" may not be too far fetched due to the developments in this field.
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机译：根据Research to Prevention Blindness，Inc.的统计，全世界有4200万人没有视力。数十年来，科学家和眼科医生一直在努力开发人造眼，以使视力恢复盲人和视力障碍者的视线。由于该领域的发展，“仿生眼”的想法可能不会太过牵强。
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