Axid reflex of arterioles in fundus images is the important criteria of arterio- rsclerosis and hypertension in clinical diagnosing. The author presented a new method for the first time named Gaussian fitting, to describe and measure axial reflex. In order to . avoid the human bias factors, six uniquely determined model characteristic parameters are used to describe axial reflex quantitatively . Objective, accurate and quantitative stand- ards of axial reflex are given. The description parameters were obtai...