Scientists in the U.S. and Australia are using new devices, experimental a bionic eyes, to help bring sight to the sightless.
It uses similar technology to cochlear implants that have been helping people hear for decades.
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Eye and Vision
Both implanted devices stimulate key nerves connected to the brain so that people can enjoy the senses of sight or hearing. VOA's Paul Sisco takes a look.
Here is how it works.
As you can see in the image this woman is wearing glasses, with a minicamera. It communicates with electrodes implanted in her eye that stimulate the retina.