Most major TV manufacturers had, for the second year in a row, a laser-sight focus on the technology.

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The consultant, Sheraz Daya, spent more than a month testing the stability of his patient's vision before using laser technology to correct the sight in the apparently non-functioning eye.

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The interaction comes from when you touch the surface, which breaks the line of sight of the laser and is recognized as a touch just as if you might touch the trackpad on an Apple Macbook.

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Some scientists believe that laser surgery may be a better option for sight correction once it is considered completely safe.

ECONOMIST: Otto Wichterle | The