In Singapore, NUS researchers are testing spinach-based eye drops that can activate photosynthesis for dry eyes. Between spectacular promise and clinical prudence, this innovation could change the care of a billion patients. What if a simple eye drop made it possible to harness the energy of light like plants do? In Singapore, researchers have developed an experimental eye drop made from spinach capable of producing, directly in the eye, the molecules that cells need to defend themselves against inflammation. A spectacular breakthrough that could open a new path against dry eye, a disease that affects more than a billion people worldwide.