EFFECT OF DURATION OF DIABETES MELLITUS AS A SIGNIFICANT MARKER FOR DIABETIC RETINOPATHY.

Abstract

Objective: To determine the association between duration of diabetes with diabetic retinopathy at a tertiary care hospital of Karachi, Pakistan. Materials & Methods: It was a case-control study conducted at the department of medicine of Jinnah Medical College Hospital Karachi for the duration of six months between Aug 2018 to Feb 2019. 45 cases of diabetes (both type 1 and 2) with retinopathy and 45 controls without retinopathy were included in the study. Duration of diabetes mellitus was divided into two categories such as ≤10 years and > 10 years. The data was entered and analyzed using SPSS version 23. Results: The majority of the patients diagnosed with diabetic retinopathy had DM from more than 10 years (77.8%) and only 8 had DM from ≤10 years (21.6%) & there was a statistically significant difference among them (p<0.05). The people with diabetes mellitus from less than & equal to 10 years have less risk to develop diabetic retinopathy as compared to patients with diabetes mellitus from more than 10 years (O.R=16.1875). Conclusion: The development of diabetic retinopathy is associated with the duration of diabetes