html5-img
1 / 18

Artificial Retina Imaging for the Sight Impaired

Artificial Retina Imaging for the Sight Impaired. When a person has lost their sight to a damaged retina there is now technology that allows them to see again. By means of a chip which sends electrical signals to the optic nerve. They then have their sight partially restored.

brock
Download Presentation

Artificial Retina Imaging for the Sight Impaired

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Artificial Retina Imaging for the Sight Impaired When a person has lost their sight to a damaged retina there is now technology that allows them to see again. By means of a chip which sends electrical signals to the optic nerve. They then have their sight partially restored. Presented by: Andrew Gustafson Cody Bjornson EE 4611 28 April, 2014

  2. Outline • How the eye works • Blindness • Argus • Bio-retina • Other Solutions • Summary • Key Concepts

  3. How the eye works • Light enters through Cornea • Lens Adjusts • Photoreceptors • Cones • Rods • Electrical Impulse • Optic Nerve • Brain interprets

  4. Blindness • Cataracts • cloudy lens • Glaucoma • fluid buildup • Macular Degeneration • damage to cones • Diabetic Retinopathy • damage to blood vessels of retina • Retina Pigmentosa • loss of peripheral

  5. Argus • Argus Retinal Prosthesis System • Developed by Second Sight Inc. • Company launched in 1998 • Robert Greenberg • Hired Engineers fresh out of school • Argus I • 2002 • 4x4 electrodes

  6. Argus • Argus II • Developed 2006 • Approved 2011 European Union • FDA Approved August 2013 • 1mm x 1mm • 6x10 electrodes • Black and White • 20/1260 vision • Next step 256 electrode

  7. Argus

  8. Argus • How it works Camera->VPU->Antenna ->Receiver->Electrode ->Optic Nerve->Brain

  9. Argus • Pros • FDA Approved • Upgradable external Hardware • Software Updates • Cons • Turn head to move camera • External Equipment • 20/1260 vision • 20 degree max line of sight

  10. Bio-Retina • Bio-Retina – Functional Level Artificial Retina • Developed by Nano-Retina • Founded in 2009 • Based in Israel • Procedure costs $60,000 and 30 minutes

  11. Bio-Retina • Utilizes a 3 x 4 mm integrated circuit • Photodetectors • Microelectrodes • Microelectronic circuitry • 24 x 24 resolution image • 576 pixels and electrodes • Powered using a single photovoltaic cell • Produces 3 mW • IR beam is shot at the cell

  12. Bio-Retina • How it works • Identical to regular process • Computer does the work • Glasses charge the implant

  13. Bio-Retina

  14. Bio-Retina • Pros • Less expensive • Short procedure • Local anesthetic • Better resolution • Minimalistic • Regular field of view • Cons • Upgrading • Not yet in clinical trials • T-800

  15. Other Solutions • Stem Cells • Gene Therapy • Drug Therapy

  16. Summary • How the eye works • Blindness • Argus • Bio-retina • Other Solutions

  17. References • Anthony, Sebastian. "The laser-powered bionic eye that gives 576-pixel grayscale vision to the blind."ExtremeTech.com. Ziff Davis, LLC, 12 July 2012. Web. 24 Apr. 2014. <http://www.extremetech.com/extreme/132918-the-laser-powered-bionic- eye-that-gives-576-pixel-grayscale-vision-to-the-blind>. • "How the Artificial Retina Works." Artificial Retina Project. N.p., 8 Jan. 2008. Web. 25 Apr. 2014. <http://artificialretina.energy.gov/howartificialretinaworks.shtml>. • "How Your Eyes Work." How Your Eyes Work. American Optometric Association, n.d. Web. 25 Apr. 2014. <http://www.aoa.org/patients-and-public/resources-for- teachers/how-your-eyes-work>. • "Mission." Second Sight. N.p., n.d. Web. 25 Apr. 2014. <http://2-sight.eu/en/home- en>. • "Leading Causes of Blindness." NIH MedlinePlus 3 (): 14-15. Print. • Puiu, Tibi. "Argus 2 bionic eye implant to receive firmware update." ZME Science. N.p., 8 Aug. 2013. Web. 25 Apr. 2014. <http://www.zmescience.com/medicine/bionic- eye-argus-2-update-04232/#!FOWAR>. • Strick, Eliza. "How Would You Like Your Bionic Vision?." IEEE Spectrum. N.p., 13 Jan. 2013. Web. 25 Apr. 2014. <http://spectrum.ieee.org/tech- talk/biomedical/bionics/how-would-you-like-your-bionic-vision>. • "What is Retinitis Pigmentosa." Foundation Fighting Blindess. N.p., n.d. Web. . <http://www.blindness.org/index.php?option=com_content&id=50&Itemid=67>. • White, Ronald. "Bionic eye maker has vision of the future." LAtimes. N.p., 27 Apr. 2013. Web. 25 Apr. 2014. <http://2-sight.eu/images/stories/2- sight/pdf/20130427_latimes_bionic_eye.pdf>.

  18. Key Concepts • Eye works by taking in light and using light-sensitive cells to turn light into electrical impulses • Argus uses an external camera to produce a picture which is transmitted to the eye wirelessly • Argus is powered through the same antenna • Bio-Retina implant uses natural process to produce sight • Battery powered glasses charge the voltaic cell of the Bio-Retina

More Related