Analysis of the related risk factors of diabetic retinopathy and changes of biological structures of anterior segment in diabetic patients

Abstract

AIM:To investigate the risk factors of diabetic retinopathy(DR)in diabetic patients and the influence on the biological structures of anterior segment.METHODS: This was a cross-sectional study. Patients with type 2 diabetes who had been treated in ophthalmology department of Shanghai Tongren Hospital were invited to participate in this study during January 2018 to September 2018. To evaluate clinical characteristics, each subject completed diabetes related history questionnaire, laboratory examination(blood glucose, glycosylated hemoglobin, blood lipid), eye examination(vision, intraocular pressure, slit lamp examination, corneal topography, fundus photography, OCT). According to the severity of retinopathy, patients were classified to three groups: group 0: none DR, group 1: mild and moderate NPDR, group 2: severe NPDR and PDR. Chi-square test, t-test and variance analysis were used to analyze the differences between groups, and risk factors of DR were studied through Logistic regression analysis. Then analyzed whether these risk factors would affect the biological structures of the anterior segment, such as refractive index, corneal thickness, corneal curvature and anterior chamber depth.RESULTS: Totally 219 diabetic patients participated in the survey, and 56 patients(25.6%)were diagnosed with DR. The age of DR patients \〖(66.84±15.13a)(group 1)/(65.45±12.83a)(group 2)\〗 was higher than that of patients without DR(59.59±14.61a)(PPPPOR>1, PPPCONCLUSION: The course of diabetes, diabetic nephropathy and insulin use were the risk factors for DR. Patients with long duration of diabetes had a shallower anterior chamber depth.

Keywords

• diabetic retinopathy
• prevalence
• risk factors
• biological structures of anterior segment