Retinal prosthesis
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The document describes the anatomy and signal processing of the human retina and visual system, from photoreceptors to the visual cortex. It also compares this to the components and function of a bionic retinal prosthesis system, which includes a camera, processor, transmitter and electrode array that aims to replace photoreceptor function and stimulate retinal ganglion cells.
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Retinal prosthesis
- 3. Photoreceptors Bipolar cells Amacrine cells Horizontal cells Retinal ganglion cells (RGC) Thalamus Visual cortex Visual perception electrical signals graded potentials action potentials
- 11. Camera signals VPU Processor data Transmitter Antenna Receiver electronics decode data signals Electrode array current pulses RGC action potentials Thalamus...
- 22. Light-sensitive photodiode Bipolar cells Amacrine cells Horizontal cells electrical signals Amplifier Electrode RGC Thalamus graded potentials action potentials ...