Researchers have dramatically boosted the performance of retinal implants by cracking a “code” that communicates visual signals to the brain. The code consists of specific patterns of electrical pulses. By incorporating it into their device, the scientists came close to restoring normal vision in totally blind mice lacking any light-sensitive cells.
Tests showed that the animals were able to discern facial features and track images with their eyes. A reconstruction based on electrical signals from the implant showed recognisable features of a baby’s face. In contrast, a standard retinal implant without the new encoder produced a confused pattern of bright and dark spots.
Via Dr. Stefan Gruenwald