Stagg BC, et al. - The goal of this paper was to identify the trends in use of ambulatory surgery centers (ASCs) and hospital outpatient departments (HOPDs) for cataract surgery, from 2001 to 2014 and factors affecting the site of surgery. The findings disclosed a large shift in the site of cataract surgery from HOPDs to ASCs from 2001 to 2014. In order to gauge the effect of this transition in the site of surgical care on patient access to surgery, surgical outcomes, patient safety, and societal costs, additional exploration was required.