Medical images contain data related to the diseases and it should be
interpreted accurately. However, its visual interpretation is quite complex/timeconsuming and only medical experts can examine this data precisely. In case of
diabetes, the retina may be damaged and it is quite complex to examine its impact on
the retina because there are a lot of vessels inside the human eyes that may be changed
due to this disease and manual interpretation of these changes consumes excessive
time. In order to overcome this issue, in this paper, a contour-based pattern recognition
method (CBPR) is introduced that can recognize multiple patterns in sample retina
images. Comparative analysis with the segmentation-based method (SBPR) shows that
it outperforms in terms of performance parameters (i.e. Accuracy/Sensitivity/
Specificity etc.).