Your posts would indicate that the “breakthrough” is indeed for non-embryonic stem cells. Two of the posts do not mention what type of stem cell is being employed. The one post which is specific states that the Chinese are using Umbilical stem cells not embryonic stem cells. This is not an ethical controversy. It is a science controversy. If anyone is able to cure people with umbilical stem cells, then more power to them!
Sorry: I was mostly replying to the other commenters who were sahing the science behind stem cell treatments for blindness (embryonic or not) was impossible.