Scientists have developed a device that can revive and preserve eyeballs from dead donors, potentially making eye transplants possible. The device uses a technique called perfusion to provide oxygen and nutrients to the eye, slowing down degeneration and allowing it to retain its ability to transmit electrical signals. Researchers have successfully tested the device on pig eyes and are now working with human eyes. This breakthrough could revolutionize the field of eye transplantation and restore vision to those who have lost it. Why it matters: this innovation has the potential to greatly improve the lives of individuals with severe eye damage or blindness, and could pave the way for new treatments and therapies in the field of ophthalmology.