Diamond Devices for High Acuity Prosthetic Vision

doi:10.1002/adbi.201600003

. 2017 Feb;1(1-2):e1600003.

doi: 10.1002/adbi.201600003. Epub 2016 Dec 5.

Diamond Devices for High Acuity Prosthetic Vision

Arman Ahnood¹, Hamish Meffin^{2

3}, David J Garrett¹, Kate Fox^{1

4}, Kumaravelu Ganesan¹, Alastair Stacey¹, Nicholas V Apollo¹, Yan T Wong^{2

5}, Samantha G Lichter¹, William Kentler⁵, Omid Kavehei⁴, Ursula Greferath⁶, Kirstan A Vessey⁶, Michael R Ibbotson^{2

3}, Erica L Fletcher⁶, Anthony N Burkitt⁵, Steven Prawer¹

Affiliations

¹ School of Physics, University of Melbourne, Victoria, 3010, Australia.
² National Vision Research Institute, Australian College of Optometry, Victoria, 3053, Australia.
³ ARC Centre of Excellence for Integrative Brain Function Department of Optometry and Vision Science, University of Melbourne, Victoria, 3010, Australia.
⁴ School of Engineering, RMIT University, Melbourne, 3000, Australia.
⁵ Department of Electrical & Electronic Engineering, The University of Melbourne, Victoria, 3010, Australia.
⁶ Department of Anatomy and Neuroscience, University of Melbourne, Victoria, 3010, Australia.

PMID: 32646182
DOI: 10.1002/adbi.201600003

Diamond Devices for High Acuity Prosthetic Vision

Arman Ahnood et al. Adv Biosyst. 2017 Feb.

. 2017 Feb;1(1-2):e1600003.

doi: 10.1002/adbi.201600003. Epub 2016 Dec 5.

Authors

Affiliations

¹ School of Physics, University of Melbourne, Victoria, 3010, Australia.
² National Vision Research Institute, Australian College of Optometry, Victoria, 3053, Australia.
³ ARC Centre of Excellence for Integrative Brain Function Department of Optometry and Vision Science, University of Melbourne, Victoria, 3010, Australia.
⁴ School of Engineering, RMIT University, Melbourne, 3000, Australia.
⁵ Department of Electrical & Electronic Engineering, The University of Melbourne, Victoria, 3010, Australia.
⁶ Department of Anatomy and Neuroscience, University of Melbourne, Victoria, 3010, Australia.

PMID: 32646182
DOI: 10.1002/adbi.201600003

Abstract

Retinal implants restore a sense of vision, for a growing number of users worldwide. Nevertheless, visual acuities provided by the current generation of devices are low. The quantity of information transferable to the retina using existing implant technologies is limited, far below receptor cells' capabilities. Many agree that increasing the information density deliverable by a retinal prosthesis requires devices with stimulation electrodes that are both dense and numerous. This work describes a new generation of retinal prostheses capable of upscaling the information density conveyable to the retina. Centered on engineered diamond materials, the implant is very well tolerated and long-term stable in the eye's unique physiological environment and capable of delivering highly versatile stimulation waveforms - both key attributes in providing useful vision. Delivery of high-density information, close to the retina with the flexibility to alter stimulation parameters in situ provides the best chance for success in providing high acuity prosthetic vision.

Keywords: diamond electrodes; diamond encapsulation; high acuity; neuronal stimulators; retinal implants.

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[1] E. Zrenner, Science 2002, 295, 1022.

[2] E. Zrenner, Science 2002, 295, 1022.

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[10] R. Guymer, A. Brandli, C. Luu, L. Ayton, Eye Brain 2016, 8, 15.

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Diamond Devices for High Acuity Prosthetic Vision

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Diamond Devices for High Acuity Prosthetic Vision

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