Instead of doing a drawing you can now do a 3 dimensional representation on a computer screen of each part.

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Scientists have said that designing a bionic eye has been much more difficult than developing aids like cochlear implants for hearing, in part because visual information is two-dimensional, and because of the anatomy of the eye.

WSJ: FDA Approves Bionic Eye

Any part of the round images can be made into a two-dimensional view, while programs find and match faces with stored video images.

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