March 1977
Volume 16, Issue 3
Free
Articles  |   March 1977
The electrical stimulation of the retina by indwelling electrodes.
Investigative Ophthalmology & Visual Science March 1977, Vol.16, 249-252. doi:
  • Views
  • PDF
  • Share
  • Tools
    • Alerts
      ×
      This feature is available to authenticated users only.
      Sign In or Create an Account ×
    • Get Citation

      W W Dawson, N D Radtke; The electrical stimulation of the retina by indwelling electrodes.. Invest. Ophthalmol. Vis. Sci. 1977;16(3):249-252.

      Download citation file:


      © ARVO (1962-2015); The Authors (2016-present)

      ×
  • Supplements
Abstract

Chronically implanted intraocular electrodes were used to stimulate visual cortical responses to current passage through the retina. Electrical current threshold for the light-adapted cat retina lies in the region of 30 to 100 X 10(-6) amps. for the conditions used. Dark adaptation caused a large threshold increase. Retinal excitability also decreased when electrical stimuli were delivered more often than one per 5 seconds. Effective charge-density threshold was moderately greater than reported for frogs and humans.

×
×

This PDF is available to Subscribers Only

Sign in or purchase a subscription to access this content. ×

You must be signed into an individual account to use this feature.

×