Derek Cunningham, OD, of Laser Eye Consultants in Austin, Texas, along with Walter Whitley, OD, of Virginia Eye Consultants in Norfolk, Virginia, discuss UBM. Dr. Cunningham explains how beneficial UBM is for imaging through the iris into the ciliary body. Dr. Whitley mentions how he uses UBM in his practice for glaucoma, as it enables better analysis of the anatomy. Jim Thimons, OD, of the Ophthalmic Consultants of Connecticut in Fairfield, describes how UBM allows optometrists to view tissue both anterior and posterior to the iris. His clinical pearl is to use the instrument to provide the patient with the best possible outcome and understand that there is a large number of patients with angle-based glaucoma concerns, which are not being addressed with routine assessment.