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Steven Prawer Bionic Vision Australia, University of Melbourne Victoria The Bionic Eye www.materials.unimelb.edu.au The BVA team z Courtesy of Kumar Ganesan, 2010 10mm Courtesy of Gregg Suaning, 2010 BVAs c ompetitive advantage The

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  1. Steven Prawer Bionic Vision Australia, University of Melbourne Victoria

  2. The Bionic Eye www.materials.unimelb.edu.au

  3. The BVA team z Courtesy of Kumar Ganesan, 2010 10mm Courtesy of Gregg Suaning, 2010

  4. BVA’s c ompetitive advantage The Team Arman Ahnood Nick Apollo Wei Tong Mathilde Escudie

  5. Motivation: Eye Disease Retinitis Pigmentosa (RP) : Age Related Macular Degeneration (AMD)  Leading cause of inherited blindness  Major cause of vision loss in Western Countries  1.5 million people affected world wide  20-25 million people affected worldwide  25% of RP patients are legally blind  Current cost (Australia) > $2B/year

  6. Retinal prosthesis  Epi-retinal  Supra choroidal  Sub-retinal  Aim: stimulate the inner retina bypassing the damaged photoreceptors.

  7. What it looks like Image courtesy of Bionics Institute

  8. Di Ashworth Di NICTA Testing-HD 720p.mov BVA VNR FTA_MP4 360p (16x9).mp4

  9. What do you see here? 16 Phosphenes

  10. What do you see here? 64 Phosphenes

  11. What do you see here? 1000 Phosphenes

  12. What do you see here? Original Picture

  13. Can you read this? 16 Phosphenes

  14. Can you read this? 64 Phosphenes

  15. Can you read this? 1000 Phosphenes

  16. Choice of material for electrodes  Mechanically durable  Electrically conductive core and insulating body  Biocompatible  Chemically inert  High thermal conductivity  High charge injection capacity

  17. Diamond: the material E XCEPTIONAL PROPERTIES INCLUDE : 4: D IAMOND AS A B IOMATERIAL 4: D IAMOND AS A B IOMATERIAL http://www.diamond-materials.com/ prod_heatspreaders_en.htm http://venda.uku.fi/research/biomaterials/Coatin gsBMTG.shtml D IAMOND UNIT CELL SAMANTHA LICHTER, ARNAM 2010 SAMANTHA LICHTER, ARNAM 2010

  18. Diamond  MPCVD - Polycrystalline diamond  Recipe: H 2 , CH 4 for insulating PCD and H 2 , CH 4 , Ar, N2 for conducting UNCD  Conductivity: B- or N-doping

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