We all know the biological and anatomical causes of blindness, but the key to restore vision lies in understanding the electrical impulses that pass from the eye to the brain.

Three years ago, neuroscientist Sheila Nirenberg learned the right about that and realized that you can use to create a prosthetic device for blind people.

Bionic Eye Implant Restores Vision

Nirenberg created a camera that collects visual information from the environment and sends the code that understands the brain to the genes that are injected into the eye.

These genes signaled his brain when are exposed to light. Then they send correct impulses and in real time the brain processes the data as an image.

For the first time in history, scientists managed to return the type of blind woman with use of Bionic eye.

Australian designed implant, resembling the model made in the film Terminator is very likely that can change the lives of millions of people with visual impairment worldwide.

Dianne Ashvorth is suffering from incurable illness, and because of that she lost almost complete vision.

Then surgeons of the Royal Victorian Eye and Ear Hospital in Melbourne, start to performed surgery. After a month the device was turned on.

The device comprises electrodes 24 which are associated with the retina. Every time you receive a signal from the outside world that they stimulate the retina, which in turn sends an impulse back to the brain.

So far scientists have used Bionic eye to create simple models of twenty-four signals – such as wood or house – even notice whether Ashvorth is able to identify them.

Over the next 18 months, scientists will work in the laboratory with Ashvorth and two other patients with limited vision, in order to make perfect this device.

The next big step is installing the camera, so that the patient will be able to get real objects, not just those that will be installed by scientists.

Even at this stage, the signals that receive Ashvorth will not be as realistic as when a person with normal vision would have perceived but they work to improve.

“What we try to do is to restore vision in a version that will probably help the patient to sees things in black or white appearance. What you have as a priority will be to give to the patient some kind of mobility, “said surgeon, Penny Allen.

An increasing number of electrodes in the brains of blind people can get a more detailed picture.
However inventors try to upgrade this device, so it does not become too expensive and may not be available for everyone.

“We do not want to get a device that would be too complicated to install in surgery,” said Allen.
The World Health Organization says that 39 million people worldwide are blind and nearly 250 million are with poor vision.