Hello again, Madelaine Amee,
Just a few minutes ago, I posted about Bascom Palmer as a possible source of the information you need and suggested looking through their website.
After I logged out from TOTV, I started looking through their website myself. There I found out that they publish a magazine called
Images. I started scrolling through the list of those and soon found an issue, published in 2018, that covers macular degeneration. The article is an overall coverage of macular with information on their research. There is also a section warning about quackery with an example of a situation that happened in Florida with dangerous, unapproved, stem cell treatment. I realize the article probably does not cover the specifics you are looking for, but maybe it can help in some way. (It has a lot of information on the shot we posted about earlier.)
I am linking that magazine here for you:
https://umiamihealth.org/-/media/bas...5C1DDC03A00F03