【正确答案】正确答案： Artificial Retina The first artificial retina has been developed / to help restore vision to people blinded by retina diseases. / It is essentially a sheet of tiny conductors put into the eye by surgeons. / The patient will be fitted with a pair of dark glasses / that have a small attached video camera and portable video processor. / The battery-operated system will send video signals directly to their brain. / However, the electronic retina doesn't restore full vision. / It only allows users to sense light and dark contrasts / and detect movement and important shapes. / And the images they perceive are not in color. /