The Naked Scientists

The Naked Scientists Forum

Author Topic: Can solar powered retinal implants restore sight?  (Read 1820 times)

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • Posts: 511
  • Thanked: 12 times
    • View Profile
A self-powering retinal implant that can turn light into sight has been successfully tested in rats.

Read the whole story on our website by clicking here

  
« Last Edit: 20/06/2013 15:44:12 by _system »


 

Offline evan_au

  • Neilep Level Member
  • ******
  • Posts: 4116
  • Thanked: 245 times
    • View Profile
Re: Can solar powered retinal implants restore sight?
« Reply #1 on: 22/06/2013 11:12:21 »
This device was reported as only working in Infra-Red light, which is the bandgap of Silicon. This would be quite useful to a previously blind person who wanted to find their way in daylight (which has lots of IR).

However, light of shorter wavelengths (like visible light) is also able to activate electrons in Silicon, but depending on the location of the implanted device, visible light may be blocked by the retina (which has pigments to absorb red, green and blue light) and the blood vessels which provide oxygen to the retina.
 

The Naked Scientists Forum

Re: Can solar powered retinal implants restore sight?
« Reply #1 on: 22/06/2013 11:12:21 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums