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Objective: To describe the management of diabetic macular oedema (DME) patients from the entire French population between 2012 and 2018. Methods: In this retrospective longitudinal study, we identified adults treated for DME from the French population using the exhaustive French National Health Information database (SNDS), and an algorithm based on diagnosis and procedure codes, and reimbursed treatments. Results: Between 2012 and 2018, we identified 53 584 treated DME patients, who were followed for up to 7 years from DME treatment initiation. Optical coherence tomography (OCT) became the predominant imaging tool to diagnose DME. Only 14% of patients consulted a diabetologist or endocrinologist in the 3 months prior to initiating DME treatment, whereas 84% consulted a general practitioner. The percentage of patients consulting an ophthalmologist declined over time, from 97% of patients in Year 1 (median of 9 consultations), to 46% in Year 7 (median of 7 consultations). The median DME treatment duration with an anti‐VEGF and/or dexamethasone implant treatment was 9 months; 54% of patients had a treatment duration less than 1 year. First‐line treatment was more common with ranibizumab (55% of patients) than with aflibercept (30%), or dexamethasone implant (15%). About 25% of patients who initiated anti‐VEGF treatment switched treatment at least once, while 30% of patients who initiated dexamethasone implant switched to anti‐VEGF treatment at least once. Conclusions: French DME patients seem well‐monitored by their ophthalmologist, but median DME treatment duration was just 9 months. These results emphasise the challenge to manage and treat patients with DME over the long term. [ABSTRACT FROM AUTHOR]