WELL, THIS IS THE 21ST CENTURY, YOU KNOW: Printed Eye Cells Could Help Treat Blindness. “Researchers at the University of Cambridge used a standard ink-jet printer to form layers of two types of cells taken from the retinas of rats, and showed that the process did not compromise the cells’ health or ability to survive and grow in culture. Ink-jet printing has been used to deposit cells before, but this is the first time cells from an adult animal’s central nervous system have been printed.” Faster, please.