Simultaneous vs. sequential and unipolar vs. multipolar stimulation in retinal prostheses

Author

Schmid, Erich W. ; Fink, Wolfgang ; Wilke, Ralf

Author_Institution

Inst. of Theor. Phys., Eberhard Karls Univ., Tubingen, Germany

fYear

2013

fDate

6-8 Nov. 2013

Firstpage

190

Lastpage

193

Abstract

A computational model for research on retinal implants is presented. In this model, the electric field produced by a multi-electrode array in a uniform retina is calculated. It is shown how this model can be used to answer questions as to cross talk of activated electrodes, bunching of field lines in monopole and dipole activation, sequential stimulation, multipolar stimulation, etc. The model is equally applicable to epiretinal, subretinal, and suprachoroidal vision implants.

Keywords

biomedical electrodes; eye; physiological models; prosthetics; vision; activated electrodes; computational model; dipole activation; electric field; epiretinal vision implants; field lines; monopole activation; multielectrode array; multipolar stimulation; retinal implants; retinal prostheses; sequential stimulation; simultaneous stimulation; subretinal vision implants; suprachoroidal vision implants; unipolar stimulation; Arrays; Conductivity; Electric fields; Electrodes; Implants; Prosthetics; Retina;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Engineering (NER), 2013 6th International IEEE/EMBS Conference on

Conference_Location

San Diego, CA

ISSN

1948-3546

Type

conf

DOI

10.1109/NER.2013.6695904

Filename

6695904