Abbreviations: DME, diabetic macular edema; DM, diabetes mellitus; SBP, systolic blood pressure; DBP, diastolic blood pressure; LDLc, low-density lipoprotein cholesterol; HCT, hematocrit; HbAlc, glycosylated hemoglobin; UACR, urine albumin-to-creatinine ratio; GDPH, the Guangdong Provincial People’s Hospital; ZJH, the Zhujiang Hospital of Southern Medical University; PHJM, People’s Hospital of JiangMen; FAHKMU, the First Affiliated Hospital of Kunming Medical University. Here, ALB is linked to diabetic macular edema.