Abstract

With the advances in biotechnology, material science and understanding of visual and retinal neuroscience, there are two kinds of retinal prostheses in clinical practice now: Argus® II and alpha-IMS. The retinal prostheses can partly rebuild the function of outer retinal by image capture, image translation, and inner retina activation, from where visual information can be relayed to the visual cortex by the optic nerve. (Int Rev Ophthalmol, 2019, 43: 25-29) Key words: retinal prostheses; bionic eye; electrical stimulus; artificial vision

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