I have a telemed call from the Cleveland Clinic in April on response to 1. and 2. below . This is a reply from Brightfocus. I found a source for AMD progression prevention called the macularprogram.com but the price is too steep for me although he claims good results. I can’t take AREDS2 with zinc apparently because I have the CFH gene. I will ask at CC what to do about AREDS2. I use Alleyes a free app for macular degeneration testing instead of the Amsler grid.