Two patients with two different forms of vision loss will soon start treatments made from embryonic stem cells as Advanced Cell Technology kicks off two early-stage clinical trials. The patients were enrolled at the Jules Stein Eye Institute at the University of California, Los Angeles, Advanced Cell said on Thursday. It did not release the patients’ names. The company won U.S. Food and Drug Administration approval in January to try out human embryonic stem cells for treating macular degeneration. That followed FDA approval in November to test human embryonic stem cells to treat people...