Medical research

Eye's recycling process key to seeing color, bright light

As many of us learned in high school science class, the retina's rods and cones allow us to see. Rods are for night vision, and cones operate in bright light and allow us to distinguish colors. But although scientists have ...

Ophthalmology

Bionic eye helps UK pensioner see in world first

A partially sighted British pensioner has had most of his vision restored thanks to a "bionic eye"—a device that converts video images from a miniature camera installed in his glasses to his brain.

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