We found weak correlations between BCVA, diabetes duration and type, gender, history of myocardial infarction and stroke, insulin intake, arterial hypertension, hyperlipidaemia, glaucoma, and autonomous AI grading (Spearman’s correlation ranging from −0.15 to 0.27) and 7F-mask grading (Spearman’s correlation ranging from −0.22 to 0.20) and moderate positive correlations between HbA1c and autonomous AI (rs [95% CI]: 0.41 [0.15; 0.62], p = 0.003, n = 49) and between HbA1c and 7F-mask grading (rs [95% CI]: 0.51 [0.27; 0.70], p = 0.0002, n = 49). Here, INS is linked to Stroke.