To diagnose dry eye in her practice, Dr. Denton uses a set protocol to screen patients to unlock the two major categories of dry eye causation: inflammation and obstruction. Her work up includes OSDI and SPEED dry eye questionnaires, InflammaDry to quantify inflammation, fluorescein staining and tear break up time, Schirmer’s test, and meibomian gland imaging. She finds that most of her patients have both inflammatory and obstructive contributors to their dry eye and both must be treated to achieve effective relief of the patient’s signs and symptoms.