TLDR from reddit: "For the first time ever, a patient's own skin cells were reverted to induced pluripotent stem cells, differentiated into retinal cells, and transplanted back into the patient as an experimental therapy for macular degeneration."
"The procedure Kurimoto performed is unlikely to restore his patient's vision. However, researchers around the world will be watching closely to see whether the cells are able to check the further destruction of the retina while avoiding potential side-effects, such as bringing about an immune reaction or inducing cancerous growth."
Seems that at this point they're still evaluating safety rather than actual therapeutic benefits. Still exciting progress :)