Newer regimens have continued to improve outcomes in multiple myeloma (MM). For many such regimens, dexamethasone (often 20-40 milligrams weekly) is continued alongside other anti-MM agents until progression. A link between systemic dexamethasone and ocular cataracts was first established decades ago, likely due to corticosteroid-related metabolic or oxidative changes within the lens. [1][2][3][4] Despite the ubiquity of dexamethasone in MM regimens, however, relatively few studies have investigated its association with ocular toxicities in MM. In one claims analysis, the prevalence of ocular comorbidities in MM rose with each subsequent line of therapy (LoT) as compared to newly diagnosed MM. 5 Potential mechanisms for this finding include continued dexamethasone, advancing age, and perhaps chronic paraprotein-mediated damage to the lens. 6,7 As a first step toward characterizing the specific impact of dexamethasone on ocular comorbidities, we used patient-reported and Electronic Medical Record (EMR)-derived data to analyze relationships between dexamethasone exposure, patient-reported cataract incidence, and patient-reported cataract severity.We analyzed patient-reported data from users of the HealthTree Cure Hub for MM, an online platform promoted to patients with MM residing in the United States (US) through emails, social media, and community events. As of December 2022, 11 356 patients with MM have created a Cure Hub account. In addition to educational materials