Efficacy of supra-choroidal, bipolar, electrical stimulation in a vision prosthesis

Y. T. Wong, S. C. Chen, Y. A. Kerdraon, P. J. Allen, M. F. McCombe, J. W. Morley, N. H. Lovell, G. J. Suaning

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

16 Citations (Scopus)

Abstract

The key to successful, clinical application of therapeutic neurostimulators lies primarily with the safety and efficacy of their electrode-tissue interfaces. The authors posit that for electrical stimulation of the visual system, supra-choroidal electrode placement provides a safe, stable and readily-accessible site for implantation and the provision of electrical stimulation. The present paper explores the efficacy of supra-choroidal electrical stimulation of retinal neurons. Based upon recordings made with surface electrodes placed on the primary visual cortex, areas of activation in the cortex were shown to change when different areas on the supra-choroidal space were stimulated. Finally, the threshold to elicit a response from neurons in the visual cortex, was found to be 77.55 ± 29.85 nC.

Original languageEnglish
Title of host publicationProceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1789-1792
Number of pages4
ISBN (Print)9781424418152
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventInternational Conference of the IEEE Engineering in Medicine and Biology Society 2008 - Vancouver Convention and Exhibition Centre, Vancouver, Canada
Duration: 20 Aug 200825 Aug 2008
Conference number: 30th

Publication series

NameProceedings of the 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS'08 - "Personalized Healthcare through Technology"

Conference

ConferenceInternational Conference of the IEEE Engineering in Medicine and Biology Society 2008
Abbreviated titleEMBS 2008
CountryCanada
CityVancouver
Period20/08/0825/08/08

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