Seeing Into the Future
The next generation of visual prosthetics could enable people who've lost their sight to find a door—or even recognize a friend again.
Around the world, more than 20 research teams are racing to develop commercially
viable bionic eyes. Each design
differs slightly in the technical details,
but the hurdles are the same: creating an effective
device tiny enough to fi t inside the eye, powering
that device, and getting signals from the detector
to the brain. Most are already being tinkered with
in animal models, and at least four have reached
clinical trials in humans.
Many of the bionic-eye projects, including
Second Sight and R...
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