Diabetic Retinopathy is brutal eye disease, which is acting as a major cause of blindness in young or middle age population. In this disease there are major chances of losing vision by patient. According to many eye specialists, it is tough to detect this disease in its early stage. If we could able to detect this disease in early stage we can save patient’s vision. For this purpose doctors recommend periodical checking of eyes by specialist. But in country like India, number of specialists available is not at all sufficient for the overall population of the country. It is also a fact that, these specialists are mostly available for city population. In rural areas there is scarcity of eye specialists and testing equipment’s. In this scenario periodical screening programs and automated Diabetic Retinopathy detection can help a lot. Numbers of researchers are attracted towards research on Automatic DR detection. Proposed paper focuses on medical background of DR and comparison of some existing methods for automatic DR detection.

Diabetic Retinopathy (DR), exudates (EXs), microaneurysms (MAs), hemorrhages (HMs)

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