Argus II retinal prosthesis: the third eye of the blind
Second Sight (Second Vision) company released the Argus II retina prosthesis earlier this year, which can help blind people "see" objects, colors and the movement of objects in the surrounding environment. Previously, this function was achieved by wearing a pair of glasses with a camera. In a recent experiment, the researchers bypassed the camera step and transmitted the braille pattern directly to the subject's retina.
The Argus II system equipped with a camera works like this: the prosthesis itself is implanted in the patient's eye, and an array of 60 electrodes is placed on the surface of the retina. The camera glasses working with the prosthesis will capture the image in front of the user and convert the video signal into current pulses. These electrical signals are then wirelessly transmitted to the electrodes in the patient's eyes, and the electrodes stimulate specific optic nerve cells according to these signals, so that the blind person has a visual sense. Although this system can not produce the same effect as normal vision, it is enough to help users recognize different letters.
Current Argus II retina prosthesis device
Road Light,Double Arms Road Light,Off Road Lights,Round Road Light
Yangzhou Heli Photoelectric Co., Ltd. , https://www.heli-eee.com