In September 2014, Dr. Masayo Takahashi and her colleagues at the RIKEN Center for Developmental Biology used iPS cells (induced pluripotent stem cells) to treat age related macular degeneration. They used skin cells from the patient and “reprogrammed” that cell line into becoming adult retinal cells. These were transplanted into the patient’s eye in a two hour procedure. Her vision improved. This technique is based on the work of Dr. Shinya Yamanaka of Kyoto University. He shared the 2012 Nobel Prize in Medicine and Physiology.
Source: Cyranoski, David. “Japanese woman is first recipient of next-generation stem cells.” Nature News. 12 Sept 2014.
Ravven, Wallace. “The Stem-Cell Revolution Is Coming–Albeit Slowly. New York Times. 17 Jan 2017, page D7.