ruckawriter: An image of “eyeball ink,” a single droplet being released from an ink-jet printer caught at high speed. Don’t know the credit. From the article at the MIT Technology Review, “Printed Eye Cells Could Help Treat Blindness,” by Michael Orcutt. From the article: 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.