Well, technically, its not bionic exactly, but none-the-less making the blind see is pretty impressive. Hey, didn't we do something special for the last guy that could do that?
Still this is tech's far from perfect, FTA: The system works with the aid of eyeglasses, which hold a camera mounted on one of the lenses that captures images and sends the information to a video processor, also located on the glasses, according to the description of the technology on Second Sight's Web site. After the video processor converts the images to an electronic signal, a transmitter on the glasses sends that information wirelessly to a receiver attached to the surface of the eye. From there, the information is sent through a tiny cable to an electrode array implanted in the retina, stimulating it to emit electrical pulses. These pulses trigger signals in the retina that travel through the optic nerve to the brain, which perceives patterns of light and dark spots that correspond to the electrodes stimulated.
It's easy to imagine a day when it won't just be spots of light and dark. As we get better at restoring site, this tech will have other applications as well in AR and VR for example. Very exciting stuff.
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