- Male or female participant between 55 and 90 years of age. Participants must have bilateral large drusen (at least 125 micron), or large drusen in the posterior pole in one eye (study eye) and advanced AMD (neovascular AMD or central geographic atrophy) in the fellow eye as determined by their study ophthalmologist. Likelihood, willingness, and ability to return for multiple visits (potentially within the same month) for at least 2 years.