Thursday, 03 May 2012 09:34

Bionic vision to become reality by 2013 say Australian researchers

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Visually blind people may be able to see through an Australian developed bionic eye by as early as 2013, according to researchers at the University of NSW. The first new implantable bionic eyes will work in conjunction with an external electronic camera such as a smart phone.

The fabrication of implantable electronics has begun at the University of New South Wales ahead of planned patient tests of a functional bionic eye next year, researchers say.

The key feature of the device is an implant with 98 electrodes, made of biocompatible materials, which will stimulate surviving nerve cells in the retina - a layer of tissue at the back of the eye that converts light into electrical impulses necessary for sight.

With the bionic eye, images captured by a camera are processed by an external unit, such as a smart phone then relayed to the implant's chip. This stimulates the retina, sending electrical signals along the optic nerve into the brain where they are decoded as vision.

A brand new $2.5 million facility was opened last week by NSW Chief Scientist Professor Mary O'Kane, who said it would give bionic vision researchers the on-campus capability to produce their own medical implants to the highest quality and safety standard.

'Our primary aim is to complete the first prototypes of the bionic eye so they can be tested in human recipients in 2013,' says Professor Gregg Suaning from the Graduate School of Biomedical Engineering at UNSW.

Suaning leads development of Bionic Vision Australia's wide-view device, the first of two prototypes aimed at restoring vision in people with degenerative retinal conditions.

The device will enable people as a minimum to better differentiate between light and dark, and to navigate around their surroundings more independently, says Suaning.

In the international race to develop a functional bionic eye the new facility will give researchers at UNSW an important leg-up.

'The new laboratory gives us the capacity to not only design and test, but to also fabricate novel and intricate bionic implants,' says Suaning. 'It will yield enormous potential and promise for future biomedical research and clinical outcomes.'

The upgraded facility will include a clean room and an array of state-of-the-art equipment for building complex microscopic components and testing the performance of microelectronics, says Professor Nigel Lovell, joint leader of UNSW's bionic vision research effort.

'The facility also allows the integration of implantable bionics with wearable sensors for telehealth monitoring,' says Lovell, 'underpinning our future research in personal health systems for managing a wide range of chronic diseases.'


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Stan Beer

 

Stan Beer co-founded iTWire in 2005. With 30 plus years of experience working in IT and Australian technology media, Beer has published articles in most of the IT publications that have mattered, including the AFR, The Australian, SMH, The Age, as well as a multitude of trade publications.

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