No question but, I always check just in case...at 90 I feel pretty good, still trim the shrubs and help hubby cut the grass. Not prescription drugs either..eat plenty of fruits and vegetables but, even so you like to check. Started taking magnesium a week ago and now I even don t have all that hurt in the lower back when I get up. Just like to check in case but, thanks for listening to an old gal! However, what is best for macular degeneration, if anything.....have a friend with that problem.