Bionic Eye: Blind People Can See Again!
With this
next Technology, Blind people will be able to see one day. Now, It is
amazing to know that think can be black and white for them with this new tool. Awesome! The Argus II allows Barbara Campbell, who lost her
sight 20 years ago, to see the world through patterns the of light. Scientists are hope
it is the beginning of more treatments.
HOW DO BIONIC EYES WORK?
All bionic eye devices
function in the following manner: A camera attached to a pair of glasses
captures the image and transmits the data to a processing unit which is worn on
the body. The data is processed and sent to the implanted system either wirelessly
or through an external wire. An implant situated behind the ear receives the
signals from the processing unit and sends them to the electrode array via a
wire. These pulses are intended to stimulate the retina’s remaining cells,
resulting in a corresponding perception of patterns of light in the brain.
Following the implant, patients learn to interpret these visual patterns,
allowing them to detect shapes of people and objects in their surroundings.
Plasticity of the brain plays an important role in enabling the outcomes of the
devices.
1.
Camera captures image
and wirelessly transmits data to implant via the vision processor (not shown).
2.
Retinal implant
stimulates retina.
3.
Electrical signals
sent from retina via usual pathway to vision processing centers in the brain.
The Bionic Eye App has now been launched!!
This app simulates the sort of vision
that a person might experience using a bionic eye. The bionic eye is a retinal
implant, placed at the back of the eye to restore a sense of vision for people
with profound vision loss due to degenerative conditions of the retina. An
external camera captures the visual scene and sends data to the implant.
Electrodes on the implant electrically stimulate the nerve cells in the retina,
providing a sense of vision. In this app, each spot of light that appears
represents the precept from one electrode.
The purpose of this app is to simulate what bionic vision might look like. This
app is not able to exactly represent the kind of vision processing that will be
deployed with the full bionic eye devices. Research and development of vision
processing strategies for the actual bionic eye implant is being completed at
the NICTA Computer Vision Research Group in Canberra. Further, each patient’s
experience with a bionic eye will be different and hence the vision they
experience might be different to what is represented in this app. This app is
intended for education purposes only.
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