Photovoltaic retinal prosthesis

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Photovoltaic retinal prosthesis is a technology for restoring sight to blind patients suffering from degenerative retinal diseases.[1] In retinal degenerative diseases such as Retinitis Pigmentosa and Age-Related Macular Degeneration,[2] patients loss ‘image capturing’ photo-receptors, but, neurons in the ‘image-processing’ inner retinal layers are relatively well preserved. In this retinal prosthesis sight of a patient is tried to be restored by electrically stimulating the surviving neurons. Photovoltaic retinal prosthesis implants are powered through inductive coils, and require complex surgical methods to implant the coil-decoder-cable-array systems which deliver energy to stimulating electrodes via intraocular cables.[3]


  1. ^ Wang, Lele; Mathieson, K; Kamins, T I; Loudin, J D; Galambos, L; Goetz, G; Sher, A; Mandel, Y et al. (2012). "Photovoltaic retinal prosthesis: Implant fabrication and performance". Journal of Neural Engineering 9 (4): 046014. doi:10.1088/1741-2560/9/4/046014. PMC 3419261. PMID 22791690. 
  2. ^ "Photovoltaic Retinal Prosthesis for Restoring Sight to the Blind". Stanford. Retrieved 25 September 2012. 
  3. ^ Mathieson, Keith; Loudin, James; Goetz, Georges; Huie, Philip; Wang, Lele; Kamins, Theodore I.; Galambos, Ludwig; Smith, Richard et al. (2012). "Photovoltaic retinal prosthesis with high pixel density". Nature Photonics 6 (6): 391–397. doi:10.1038/nphoton.2012.104. PMC 3462820. PMID 23049619.