Gary Wörtz, MD, sits down with George O. Waring IV, MD, FACS, to discuss presbyopia and the opportunities to help those with this ubiquitous condition, which will affect 2 billion people worldwide by 2020. Dr. Waring weighs in on the need he saw to better understand and characterize the aging changes of crystalline lens and walks Dr. Wörtz through his approach to a range of clinical scenarios commonly faced in the management of presbyopia.