An algae found commonly in ponds could provide a cure for blindness, according to one US biotechnology company. Retrosense, a Michigan-based firm, hopes to transplant a light-sensitive protein from a specific type of algae into the eyes of blind people, to restore their sight. The company will soon begin human clinical trials, after the transplanting process was approved by the US Food and Drug Administration last month, WIRED reports. The algae, called Chlamydomonas reinhardtii, is a simple single-cell organism that lives in dirt and water. It cannot see, but has a primitive “eye-spot”, allowing it to sense where the sun...