Title :
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
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;
Conference_Titel :
Neural Engineering (NER), 2013 6th International IEEE/EMBS Conference on
Conference_Location :
San Diego, CA
DOI :
10.1109/NER.2013.6695904
