Figure 3 Image of retinal vessels in a patient with diabetes mellitus type 2Evaluation of retinal arteriolar morphology in a patient with diabetes mellitus type 2 with adaptive optics camera 4°×4° degree square (Rtx-1, Imagine Eyes, Orsay, France) and measurement of morphological parameters using AOdetect software. Retinal artery with focal luminal narrowing (yellow arrow) and increased wall-to-lumen ratio (WLR 0,33; 0,37; 0,29) (top). The parameters calculated from the 3 selected regions of interest, for each time landmark (100 μm width and height each) (bottom). The image is from the author’s collection