IEEE S.F. Bay Area Council e-GRID's
BayAreaTech

Technology & Networking in Silicon Valley & the SF Bay Area: Upcoming Meetings, Courses and Conferences

June 13, 2010

Mtg: Optoelectronic Retinal Prosthesis for Restoration of Sight to the Blind

by @ 11:52 am. Filed under ALL, BioEngineering, Electronics Design, Engineering Mgmt
 

WEDNESDAY June 16, 2010
SCV Engineering in Medicine and Biology Chapter
Speaker: Daniel Palanker, Department of Ophthalmology and Hansen Experimental Physics Laboratory, Stanford University
Time: Optional dinner: Nexus Cafeteria 6:15 PM; Presentation at 7:30 PM
Cost: none, for talk
Place: Room M-114, Stanford University Medical School, Stanford
RSVP: not required
Web: www.ewh.ieee.org/r6/scv/embs

Retinal degeneration leads to blindness due to loss of photoreceptors, while the inner retinal neurons are often preserved to large extent. Visual information can be reintroduced into the visual system by electrical stimulation of the remaining retinal circuitry using implanted microelectrode array.? In our prosthetic system the processed images of the visual scene captured by the camera are projected from the micro LCD display mounted in the video goggles onto a subretinally implanted microphotodiode array.? Each photovoltaic pixel in the array converts the received pulsed near-infrared light (900 nm) into biphasic pulses of electric current that directly stimulate retinal neurons.? In this approach thousands of pixels in the implant can be activated simultaneously and independently, and a natural link between the eye movements and image perception is preserved.
3-dimensional implant structure facilitates close integration of neurons with stimulating electrodes, and modular design of the implant allows for expansion of the stimulated field.? I will describe the current status of the system development and testing, and the resolution limits attainable with such technology.

Comments are closed.

[IEEE S.F. Bay Area Council - www.e-grid.net] [powered by WordPress .]

SF Bay Area Council

Categories

  • 5G (2)
  • ALL (4,702)
  • Antennas & Propagation (5)
  • BioEngineering (675)
  • Blogroll (33)
  • Circuits (16)
  • Communications (1,862)
  • Computers/Software (1,777)
  • Consumer Electronics (103)
  • Control Systems (23)
  • Electrical/Power (1,284)
  • Electronics Design (2,774)
  • Employment (4)
  • Employment opportunities (7)
  • Engineering Mgmt (1,819)
  • Green energy (48)
  • History (7)
  • Industrial Applications (91)
  • Information Theory (13)
  • Instrument and Measurement (1)
  • Magnetics (30)
  • Microwave (8)
  • NanoEngineering (876)
  • Optics/Displays (969)
  • Photonics (31)
  • PhotoVoltaics (4)
  • Product Safety (25)
  • Reliability (37)
  • Robotics and Automation (19)
  • Semiconductors (1,847)
  • Signal Processing (138)
  • Vehicular Technology (16)
  • Women in Engineering (8)
  • Young Professionals (5)
  •  

    Support our advertisers:

    Visit our
    GRID MARKETPLACE

    Enabling Javascript allows us to show you upcoming conferences in this column.

    For the Firefox browser, select Tools/Options/Content and select "Enable Javascript".

    If you are using Microsoft Internet Explorer you may need to click on the yellow bar above and select 'Allow Blocked Content'. You must then click 'Yes' on the following security warning.

    archives:

    March 2019
    S M T W T F S
    « May    
     12
    3456789
    10111213141516
    17181920212223
    24252627282930
    31  

    View in Google Calendar

    search blog:


    SUBSCRIBE: Get the e-GRID twice a month by email - upcoming IEEE SF Bay Area meetings, conferences.

    RSS Feed Subscribe to our RSS Feed.

    PUBLICIZE your event to IEEE's membership.


    general links:

    22 queries. 0.764 seconds