The electrical stimulation of the retina by indwelling electrodes
- PMID: 844981
Item in Clipboard
The electrical stimulation of the retina by indwelling electrodes
Invest Ophthalmol Vis Sci.
1977 Mar.
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.
Similar articles
-
Development of an extraocular retinal prosthesis: evaluation of stimulation parameters in the cat.J Clin Neurosci. 2008 Aug;15(8):900-6. doi: 10.1016/j.jocn.2007.08.012. J Clin Neurosci. 2008. PMID: 18586497
-
Evaluation of extraocular electrodes for a retinal prosthesis using evoked potentials in cat visual cortex.J Clin Neurosci. 2005 Jun;12(5):574-9. doi: 10.1016/j.jocn.2004.10.004. J Clin Neurosci. 2005. PMID: 16051097
-
Activation zones in cat visual cortex evoked by electrical retina stimulation.Graefes Arch Clin Exp Ophthalmol. 2002 Nov;240(11):947-54. doi: 10.1007/s00417-002-0577-5. Epub 2002 Oct 30. Graefes Arch Clin Exp Ophthalmol. 2002. PMID: 12486519
-
Will retinal implants restore vision?Science. 2002 Feb 8;295(5557):1022-5. doi: 10.1126/science.1067996. Science. 2002. PMID: 11834821 Review.
-
Spontaneous activity in visual systems.Am J Optom Arch Am Acad Optom. 1972 Nov;49(11):905-21. doi: 10.1097/00006324-197211000-00001. Am J Optom Arch Am Acad Optom. 1972. PMID: 4343862 Review. No abstract available.
Cited by
-
Prospects for Optogenetic Augmentation of Brain Function.Front Syst Neurosci. 2015 Nov 23;9:157. doi: 10.3389/fnsys.2015.00157. eCollection 2015. Front Syst Neurosci. 2015. PMID: 26635547 Free PMC article. Review.
-
Retinal prostheses: progress toward the next generation implants.Front Neurosci. 2015 Aug 20;9:290. doi: 10.3389/fnins.2015.00290. eCollection 2015. Front Neurosci. 2015. PMID: 26347602 Free PMC article. Review.
-
The artificial silicon retina in retinitis pigmentosa patients (an American Ophthalmological Association thesis).Trans Am Ophthalmol Soc. 2010 Dec;108:120-54. Trans Am Ophthalmol Soc. 2010. PMID: 21212852 Free PMC article.
-
An in vitro model of a retinal prosthesis.IEEE Trans Biomed Eng. 2008 Jun;55(6):1744-53. doi: 10.1109/tbme.2008.919126. IEEE Trans Biomed Eng. 2008. PMID: 18714839 Free PMC article.
-
Neural responses elicited by electrical stimulation of the retina.Trans Am Ophthalmol Soc. 2006;104:252-9. Trans Am Ophthalmol Soc. 2006. PMID: 17471346 Free PMC article.
Publication types
MeSH terms
LinkOut - more resources
Full Text Sources
Other Literature Sources
Miscellaneous
