In a method and a system for supporting the evaluation of a picture of a patient's eye the picture is displayed on a screen. An image-processing algorithm from a number of image processing algorithms is selected due to a preliminary diagnosis selected from a number of diagnoses which are related to diabetes. Each image-processing algorithm of the number of image processing algorithms is associated with a diagnosis of the number of diagnoses and is designed to search for a pattern which is specific to the respective diagnosis. The selected image-processing algorithm then is applied to the picture and a pattern which is detected by the selected image-processing algorithm is marked on the screen in the picture.