Abstract—From theoretical modelling, it is projected that a retinal device with 1000+ electrodes could provide face recognition, reading ability and functional vision. This challenging purpose, however, has a restriction to realize the boundaries of electrode carrier area with its corresponding electrode diameter to accommodate 1000+ microelectrodes and safeguard charge density, temperature increase at the device, and provide focal retinal stimulation, i.e. one active electrode excites a single cell. Here we introduce the strength electrode-separation curve and ‘optimization window of epi- or subretinal stimulation’ that answer the previously stated challenges. Further, a large-scale cell simulation is presented, which is a technique to obtain the optimal inter-electrode distance in epi- or subretinal stimulation.
 

Index Terms—1000 electrode array retinal prosthesis, strength-duration curve, electrode carrier dimension limit

Cite: Diego Luján Villarreal, Dietmar Schroeder, and Wolfgang H. Krautschneider, "Novel Method for Realizing 1000+ Electrode Array in Epi- or Subretinal Prosthesis," International Journal of Pharma Medicine and Biological Sciences, Vol. 5, No. 3, pp. 146-153, July 2016. 10.18178/ijpmbs.5.3.146-153