Evaluation of stimulus parameters and electrode geometry for an effective suprachoroidal retinal prosthesis
| dc.contributor.author | Shivdasani, Mohit | |
| dc.contributor.author | Luu, Chi | |
| dc.contributor.author | Cicione, Rosemary | |
| dc.contributor.author | Fallon, James | |
| dc.contributor.author | Allen, Penny | |
| dc.contributor.author | Leuenberger, James | |
| dc.contributor.author | Suaning, Gregg | |
| dc.contributor.author | Lovell, Nigel | |
| dc.contributor.author | Shepherd, Robert | |
| dc.contributor.author | Williams, Chris | |
| dc.date.accessioned | 2016-03-04T05:31:47Z | |
| dc.date.available | 2016-03-04T05:31:47Z | |
| dc.date.issued | 2010 | |
| dc.description.abstract | Several approaches have been proposed for placement of retinal prostheses; epiretinal, sub-retinal, and suprachoroidal. We aimed to systematically evaluate the effectiveness of varying a range of stimulus parameters and electrode geometry for a suprachoroidal electrode array, using cortical evoked responses to monopolar electrical stimulation in cats. Our results indicate that charge thresholds were not dependent on electrode size, pulse widths or position of the return electrode tested, but were dependent on the number of sites stimulated in parallel. Further, we found that the combination of monopolar stimulation with large diameter electrodes, wide pulse widths and parallel stimulation minimized the voltage requirements for stimulation. These results provide useful insights for the design specifications of a low voltage suprachoroidal stimulator. | en_US |
| dc.description.sponsorship | Funding was provided by the Ian Potter Foundation and John T Reid Charitable Trusts. The Bionic Ear Institute acknowledges the support it receives from the Victorian Government through its Operational Infrastructure Support Program | en_US |
| dc.identifier.citation | Shivdasani, M. N., Luu, C. D., Cicione, R., Fallon, J. B., Allen, P. J., Leuenberger, J., ... & Williams, C. E. (2010). Evaluation of stimulus parameters and electrode geometry for an effective suprachoroidal retinal prosthesis. Journal of neural engineering, 7(3), 036008. | en_US |
| dc.identifier.issn | 1741-2560 | |
| dc.identifier.uri | http://repository.bionicsinstitute.org:8080/handle/123456789/192 | |
| dc.language.iso | en | en_US |
| dc.publisher | IOP Publishing Ltd | en_US |
| dc.relation.ispartofseries | 7;3 | |
| dc.title | Evaluation of stimulus parameters and electrode geometry for an effective suprachoroidal retinal prosthesis | en_US |
| dc.type | Article | en_US |