Frequency and types of diabetic retinopathy in type II diabetes; a hospital base study

Objectives: to determine the frequency and type of diabetic retinopathy in different age groups. study design: descriptive case series study. place and duration of study: department of ophthalmology liaquat university of medical and health sciences (lumhs) hyderabad,from february 2009 to january 2010. methods: two hundred and forty four patients of diabetes mellitus (dm) were randomly selected and grouped out into 30-40 years,41-50 years,51-60 years,61-70 years and more than 70 years of age. each patient was evaluated for diabetic retinopathy (dr) by fundoscopy and fundus fluorescence angiography (ffa). the retinopathy was graded as 0-3 grade; grade 0= no dr,grade 1= mild dr,grade 2= moderate to severe dr and grade 3= proliferative dr. the different risk factors (age,gender,duration of dm,treatment type and hypertension) were evaluated in relation to diabetic retinopathy. result: among 244 patients,149 were males and 95 were females. diabetic retinopathy was detected in 100 (40.94%) patients. mean duration of dm was 13 years in patients with dr and 7.5 years in patients without dr. most of the dr was found in 40-60 years of age. out of 244 subjects 25% patients were found with grade 1,6.96% patients with grade 2 and 9.01% patients were found with grade 3 diabetic retinopathy. conclusion: most of the diabetic retinopathy cases were below the age of 60-years,and majority of dr cases presented with type 1 diabetic retinopathy.