Thanks, Kat, for this valuable info. I have m.d. in my left eye, not so advanced I can't see or drive, but troublesome (and scary if it gets worse and/or appears in right eye). As soon as I was diagnosed I started taking lutein and zinc, a combination that has proven in tests to be helpful in halting, slowing, or stopping progression, and even in some cases (not mine, unfortunately) has even improved eyesight. Macrocurrent stimulation sounds like an important adjunct.