Active clinical trials for "Diabetic Retinopathy"

This is a prospective clinical study. At the Shaoguan Diabetic Eye Screening Programme, patients ages 30-80 will undergo the two diagnostic models: (1) in a remote diagnostic clinic site, patients undergo a self-testing device that provides both color retinal photography (CRP) and optical coherence tomography (OCT) imaging of nondilated pupils, and receive an online consultation provided by a retinal specialist; (2) on a separate day, patients visit the tertiary hospital, undergo traditional imaging of dilated pupils acquired by a non-expert imager using a traditional CRP imaging device at the point of care, and receive a face-to-face consultation provided by a retinal specialist. Within one week of receiving both diagnostic imaging services, patient preferences are assessed and they decide which diagnostic imaging model is preferred.

In this study, we will prospectively evaluate the accuracy of a deep-learning based software algorithm in the detection of diabetic retinopathy from 60° wide single-field retinal fundus images.

The aim of this prospective study was for the first time, to analyze specific morphologic features in diabetic eyes with macular oedema, such as changes of the foveal avascular zone and the presence of epivascular glia, and see how they would change after dexamethasone intravitreal implant

The contribution of OCT- angiography (OCT-A) allows to consider, in a more or less long term, a drastic reduction in the use of fluorescein angiographies in diabetic retinopathy. The accuracy of the analysis of the vascularization of retinal layers of the posterior pole of the eye by the OCT-A , will detect, early and in a quantifiable manner, whether or not there are areas of macular ischemia in a patient. However, current technical limitations (small field analysis) of OCT-A imaging only allow a limited study of retina at the posterior pole of the fundus. This study seeks to demonstrate whether there is a link between macular ischemia detected by the OCT-A and peripheral retinal ischemia detected by the fluorescein angiographies, in diabetic patients.

Prevalence of Diabetic Retinopathy in São José do Rio Preto-SP-Brazil Abstract Objective: To determine the prevalence and characteristics of diabetic retinopathy (DR) among patients from São José do Rio Preto-SP-Brazil . Local: Departamento de Retina e Vítreo do Hospital do Olho de Rio Preto (HORP) Methods: Design: population-based cross-sectional study. The study sample, of 710 patients was derived from the HIPERDIA (Diabetes and High-blood pressure social health care program) of São José do Rio Preto . All patients , known to have diabetes , underwent an eye examination by biomicroscope and indirect ophthalmoscope to check for any signs of DR through dilated pupils. Participants were also interviewed and examined to determine their demographic characteristics, medical conditions and the realization of previous fundoscopic eye examination. Statistical studies were done with t -Student test , Fisher test or chi-square test.

The main objective of this observational study is to characterize and correlate functional and structural changes at the retinal level using the Retinal Leakage Analyzer (RLA) and the Optical Coherence Tomograph (OCT). To show if it is possible to use OCT as an indirect measurement of leakage, this study will check, in a primary analysis, for OCT changes between fluorescein leaking and non-leaking areas (identified by Retinal Leakage Analyzer). As a secondary objective, changes in RLA and OCT over time (between two consecutive visits) will be analyzed and characterized. The results of this study will be used exclusively for scientific purposes.

Clinically significant macular edema (CSME) is a thickening of the macula associated with the risk of visual loss, which increases its centre is involved. Functional evaluation of the macula relies on best corrected visual acuity; however, neural dysfunction in diabetic eyes appears before retinal thickening and visual loss. Retinal sensitivity decreases in eyes with CSME, but it is unknown whether it differs between eyes with and without centre thickening. Aim: To compare the reduction of foveal sensitivity in eyes with CSME, with and without centre thickening.

The overarching purpose of this project is to provide diabetes education to the diverse patient population at the Lions Eye Clinic, a resident-run ophthalmology practice at California Pacific Medical Center. Because of high clinic volume in a teaching environment, our patients often experience long wait times. The goal of this program is to utilize this wait time for diabetes education, a much-needed corollary to the eye care that patients receive at our clinic. This pilot project will investigate the impact of a program like this in our patient population. Specifically, the investigators are investigating whether diabetes education delivered in an ophthalmology setting enhances patient understanding of diabetes (via knowledge surveys) and/or leads to improved blood glucose control (via hemoglobin A1c). This is a 6-month study that runs through April 2015, and looks at the impact of an interactive diabetes education iPad app +/- in-person sessions with a diabetes educator. A subset of patients who meet with a diabetes educator will also be shown their own retinal images (compared to a normal retina).

The aim of the study is to find out prevalence and individual stages of Diabetic Retinopathy in patients with type 1 and type 2 DM verified based on complex ophthalmologic measurements in Slovak Republic. The outcome of the project will be epidemiology survey, prevalence of diabetic retinopathy (DR) and diabetic macular edema (DME) in relation to type and duration of diabetes mellitus and risk factors. Project will also identify genetic factors linked with the diseases.

The pathogenesis of proliferative diabetic retinopathy (PDR) remains poorly understood. Recent studies have implicated that monocyte chemoattractant protein-1 (MCP-1) is associated with diabetic microvascular or macrovascular complications. However, the relationship between SNP polymorphism c.2518A/G in the MCP-1 gene with diabetic retinopathy remains controversial. In the present study, we evaluated the association of a single nucleotide polymorphism (SNP) in the MCP-1 gene with diabetic retinopathy (DR) and diabetic macular edema (DME) in Chinese population from Southern China with type 2 diabetes.