Keywords: ACCORD; ADVANCE; Diabetic Retinopathy; ELIXA; EXSCEL; Eye events; FOCUS; GLP-1; Glucagon-like peptide-1 receptor agonists; HARMONY Outcomes; LEADER; Liraglutide; Lixisenatide; Long-term complications; Microvascular complications; PIONEER-6; REWIND; SUSTAIN-6; Semaglutide; Type 2 Diabetes; UKPDS; VADT; albiglutide; dulaglutide; exenatide; oral semaglutide.