At the 2013 ASCRS, Christopher Starr, MD, Associate Professor of Ophthalmology at Weill Cornell Medical College, made a CME presentation discussing the importance of point of care diagnostics in today's practice. We've asked Dr. Starr to expand on that discussion following questions that were posed after the symposia. This discussion provides great information regarding the physiology of the tear film and how hyperosmolarity causes instability, the hallmark of Dry Eye Disease (DED). He provides evidence of how this can negatively impact a patient's quality and stability of vision. Dr Starr presents a succinct review of the tear film osmolarity being extremely stable over-time on non-DED patients; but significant inter-eye differences and elevations of osmolarity are seen with DED patients utilizing the TearLab Osmolarity System that provides an objective point-of-care number. Additional information utilizing Visual Scatter Data also provides an understanding of the disturbance of "visual quality" for patients suffering from a hyperosmolar tear film and how treatment significantly improves the Ocular Scatter Index (OSI). He concludes that Dry Eye Disease is complicated and TearLab helps to simplify the diagnosis and management of the condition.