Figure 2 Image of normal retinal arteriole and venuleEvaluation of retinal arteriolar morphology in a healthy volunteer with adaptive optics camera 4°×4° degree square (Rtx-1, Imagine Eyes, Orsay, France) and measurement of morphological parameters using AOdetect software (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.