A Human Factors Evaluation of a Screening System for Diabetic Retinopathy Centered in Psychological Theory

Abstract

People with diabetes are at risk for diabetic retinopathy (DR), a leading cause of blindness. Early treatment can preserve sight; however, screening rates are low. We utilized psychological theories of motivation in tandem with human factors tools such as heuristic evaluation and task analysis to develop interventions to improve screening rates at a single clinic. Interventions addressed the system of screening, from the patients and their choices to clinic workers, device usability, and the clinic environment. Findings showed potential solutions to the screening issue situated within the theory of planned behavior. Future steps are to refine interventions and measure effectiveness.