Many patients do not test blood glucose levels as often as they should, due to pain associated with the finger stick, as well as the need for an excess of testing paraphernalia. This week's guest discusses a potential non-invasive test on the horizon that would use tears to measure glucose levels. Dr. Jeffrey La Belle, biomedical engineering research professor in the School of Biological and Health Systems Engineering in Arizona State University's Ira A. Fulton Schools of Engineering and the Biodesign Institute, discusses promising new research in testing that may improve effectiveness and compliance with measuring blood glucose.