Effective electrode configuration for selective stimulation with inner eye prostheses.
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- Record sourced from PubMed, PMID 15376514.
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Abstract
The quality of visual perception with retinal prostheses strongly depends on the local selectivity. Electrode arrays at the surface of the retina should excite exclusively cells within a local area but they are expected to co-stimulate bypassing axons originating from ganglion cells of the outer regions. Long electrodes parallel to these axons are shown to be good candidates for avoiding the co-stimulation phenomenon. Efficiency of focal excitation depends on the length and resistance of the electrodes.
Medical subject headings
- Blindness
- Electric Stimulation
- Electric Stimulation Therapy
- Electrodes, Implanted
- Equipment Failure Analysis
- Models, Neurological
- Retinal Ganglion Cells