Analysis on screening of diabetic retinopathy in 1610 patients with diabetes

Abstract

Objective To determine the prevalence of diabetic retinopathy (DR) and to investigate the associated risk factors in patients with diabetes mellitus (DM).Methods Totally 1610 patients diagnosed DM by the WHO diagnostic criteria attending at the First Affiliated Hospital of Guangxi Medical University from 2007 to 2010.The data of disease history, visual acuity, eye disease and intraocular pressure were collected by inquiry and examination.Photography of ocular fundus was used to confirm the diagnosis of DR.According to the criteria of DR, diagnosis and statistics of DR were made and the relationship between the prevalence of DR and duration, age, the age of onset and blood pressure were analyzed.Results The prevalence of DR was 30.2% in 1610 diabetic patients,27.3% for male and 35.0% for female.The prevalence of DR of 340 newly onset diabetes was 12.6%.In 3201 eyes, the incidence of nonproliferative and proliferative DR (PDR) was 24.9% and 3.9%, respectively.The highest prevalence of DR was in the age group of 51 to 60 and the age of onset was 41 to 50 in patients with DM.Compared with FFA, the agreement rate of 45° fudus photography was 78.1%.Conclusions One-field mydriatic digital fudus photography centered at fovea is feasible and handy for screening of early diabetic retinopathy.Age, the age of onset and duration of disease are the risk factors of DR, longer the duration of DM, higher the incidence of DR.For early diagnosis and management of DR, the patient with DM should be examined regularly.It is very important to decrease the rate of blindness of DR. Key words: Diabetes mellitus; Diabetic retinopathy; Photography of ocular fundus; Prevalence; Risk factors