Dr. Brian McKay is an associate professor at the Department of Ophthalmology and Vision Science at the University of Arizona.  Dr. McKay joins the show to discuss age-related macular degeneration (AMD) and its potential causes.  He dives deeper into the relationship between certain pigments and persons susceptibility to AMD or glaucoma and how they are related.  Dr. McKay also shares with us his most recent results in which Alzheimer’s drug can potentially help us treat and even prevent future cases of AMD.