A Retina-Electrode Interface for Light Sensing and Image Recognition

We developed a flexible perforated microelectrode array to create a robust retina-electrode interface for light sensing and image recognition. The perforated structure of microelectrode array enables the application of gentle suction, securing the retina onto the electrodes for seamless contact. This design allows for the simultaneous recording of spike firings from hundreds of retinal ganglion cells in response to light stimuli. Our findings show that most cells respond actively to light, confirming the light-sensing capability of this interface. Integrated with machine learning algorithms, this interface supports accurate recognition of letters and colors based on spike firings.