Study The Correlation Between Severity Of Diabetic Retinopathy With Control And Duration Of Diabetes

BACKGROUND: The purpose of this study was to study the correlation between severities of Diabetic Retinopathy with control and duration of diabetes. Methods: 1200 diabetic patients attending the eye OPD of Safdarjung Hospital between 2008 to 2010 were screened for diabetic retinopathy. The control of diabetes was monitored using glycosylated hemoglobin level. Their duration of diabetes was noted. RESULTS: Patients with uncontrolled diabetes developed Diabetic Retinopathy 23.32 times more compared with controlled groups. 82.18% of controlled diabetics had no retinopathy compared to 16.51% of uncontrolled diabetics. Occurrence of moderate and severe Retinopathy was significantly higher in uncontrolled diabetics, 43.12% and 20.64%, respectively as compared with 5.29% and 2.14% in controlled diabetics. All 10 cases of proliferative retinopathy were found in uncontrolled diabetics. Only 21.69% of patients having diabetes for 05years developed retinopathy compared with 58.82% of patients having the diabetes for 20 years or more. It was shown that for every 5years increase in the duration of diabetes, the risk for retinopathy increased 1.57-fold. Also the retinopathy severity increased with increasing duration. CONCLUSION: Statistical methods concluded that Retinopathy was more likely to occur and with more severity in uncontrolled than controlled diabetics. Also Retinopathy was more likely to occur as the duration of diabetes increased.