View clinical trials related to Diabetic Retinopathy.
Filter by:To determine the influence of phacoemulsification on choroidal vasculature in patients with diabetic retinopathy (DR) undergoing cataract surgery
Diabetes mellitus has been declared a major public health issue. Among the complications of the disease, retinopathy can have a significant impact on mobility and quality of life for individuals living with diabetes. As the leading cause of new blindness in adults, diabetic retinopathy has been shown to affect 23% of all Type 1 and 14% of Type 2 diabetic individuals. Various studies have reported that a number of components in the egg may contribute to visual function and eye health. Specifically, i) egg yolk naturally contains, and can be further enriched with the carotenoids lutein and zeaxanthin. Lutein and zeaxanthin protect the retina against light induced retinal damage by acting as potent antioxidants that shield the retina from harmful short-wave radiation. ii) eggs can also be enriched to provide a vehicle for specific nutrients to promote eye health including omega-3 fatty acid, docosahexaenoic acid (DHA). A substantial amount of DHA is uniquely found within the retina. A DHA deficiency has shown to induce abnormal retina function indicating a constant supply of this nutrient is necessary for retina health. Currently, the American Diabetes Association declares that eggs are an excellent choice for people with diabetes, but information lacks on the status of whole egg consumption in diabetic individuals in relation to their retinal health. Therefore, the current study aims to determine if the consumption of two lutein and DHA enriched eggs per day can safely improve the retina function of individuals with type 2 diabetes. A total of 60 adult diabetic male and female participants will be recruited to take part in this double-blinded, randomized, placebo-controlled, parallel trial. Participants will be randomly assigned to include two DHA and lutein enriched eggs or regular eggs into their usual diet for 6 weeks. At the beginning and end of the trial, a variety of measures will be analyzed including blood lipid parameters, carotenoid status, anthropometrics, arterial stiffness, advanced glycated end products, macular pigment optical density and electroretinography. These measures will aid in determining whether enriched egg consumption can safely improve retina function, while not adversely effecting body composition and cardiovascular risk factors in individuals with diabetes. The results of this study will contribute to the development of valuable prevention strategies for eye health in individuals with diabetes, thereby improving their quality of life.
Retinal imaging is a corner stone in diagnosis of most retinal disorders. Standard imaging techniques e.g. fluorescein angiography and color fundus photography have a lot of limitations including limited resolution, invasive nature in cases of fluorescein angiography, and inability to segment the retina, accordingly, and only 2D image is provided. Optical coherence tomography angiography (OCTA) is a recent noninvasive imaging technique that allows for volumetric visualization of eye vasculature. OCTA has shown promise in better elucidating the pathophysiology of several retinal vascular diseases. Swept-source OCTA uses long wavelength ̰ 1,050nm, which can penetrate through deeper layers of the eye and can traverse opacities of media such as cataracts, hemorrhages and vitreous opacities. Optical coherence tomographic angiograms can further be manually or automatically segmented with preprogrammed software to highlight individual layers of the retina, optic nerve head choriocapillaris, and choroid. The user can either analyze en face images extending from the inner limiting membrane to choroid or use automated views to locate a vascular or structural lesion within the retina. Different quantitative metrics has been extracted from enface OCTA images including vessel density, FAZ area, choriocapillaries flow deficit, intercapillary area and fractal dimension. These metrics are helpful in evaluation the retinal perfusion and used by physicians to assess various retinal vascular disorders. Although some previous literatures had discussed the repeatability of OCTA metrics, however, comprehensive evaluation of widely used metrics in various retinal condition has not be done. Additionally, recent data suggest that various methods of calculation of these metrics my yield final different results of the same metric.
Diabetic retinopathy (DR) is a diabetes complication caused by damage to the small blood vessels inside the retina at the back of the eye. Diabetic retinopathy may cause mild vision problems or eventually blindness. Diabetes is a condition that makes your blood sugar levels higher than they should be. In the early stages of diabetic retinopathy - called non-proliferative diabetic retinopathy (NPDR)- increased blood sugar levels lead to damage to the tiny blood vessels of the retina. This damage results in small outpouchings of the vessel lumens leading to rupture. At the same time the blood vessels can leak and making the retina swell and can cause so called macula edema. In these early stages of DR current treatment to reduce the risk of this eye complication is focused on controlling blood sugar levels and blood pressure. Participants in this study have NPDR, Type 2 Diabetes (T2D) and Chronic Kidney Disease (CKD), a condition in which the kidneys become damaged and do not work as they should. These participants are already taking part in one of the phase 3 studies (FIDELIO-DKD and FIGARO-DKD). They study the effect of Finerenone on delaying kidney disease progression and reducing the risk of events that may cause damage to the heart and blood vessels To learn more about the effect of Finerenone on diabetic retinopathy, data from routine eye examinations performed during the two phase 3 studies will be collected and analyzed. All male and female participants included in this study are at least 18 years.
To investigate ranibizumab's benefit on prevention of early postoperative vitreous haemorrhage in PDR-DME patients receiving vitrectomy.
The purpose of the investigator's study is to evaluate the efficacy and safety profile of the pro re nata (PRN) regimen to 12 months by using intravitreal dexamethasone implant in eyes with treatment-naive diabetic macular edema patients.
The present study is a semi-experimental clinical trial that 20 patients (40 eyes) with PDR underwent PRP with ARC with a spot number of 1,200 to 1,500 per eye and spot size 500 micron with a duration of 200 ms. The variables of contrast sensitivity, macula thickness under fovea , BCVA, the width of thyroid under fovea , RNFL thickness in the four areas around the disc, and the quality of life questionnaire of all patients were recorded at the beginning of the study.Retinal and choroid under fovea thickness and RNFL thickness were assessed in four areas, one week and one month after the end of treatment, and all the variables mentioned earlier were evaluated three months after PRP surgery. This study is single group that the outcomes are compared before and after the intervention
This is a study in people with a type of diabetic eye disease called diabetic retinopathy with diabetic macular ischemia. People who have had laser treatment for their diabetic retinopathy can participate in the study. The laser treatment is called panretinal photocoagulation. The purpose of the study is to find out how well different doses of a medicine called BI 764524 are tolerated. BI 764524 is injected into the eye. The study has 2 parts. In the first part, participants get different doses of BI 764524 only once. Participants are in the first part for about 5 months and visit the study site about 8 times. In the second part, participants are put into different groups by chance. Some participants get BI 764524 injections every 4 weeks. Other participants get sham injections every 4 weeks. A sham injection means that it is not a real injection and contains no medicine. Participants cannot tell whether they get the real injection or a sham injection. For the second part, participants are in the study for about 7 months. During this time, they visit the study site about 7 times. In this study, BI 764524 is given to humans for the first time. The doctors compare how well people tolerate the BI 764524 injections and the sham injections. The doctors also regularly check the general health of the participants.
A Phase 2, Multi-Center, Randomized, Double-Masked*, Active Controlled Study of ADVM-022 (AAV.7m8-aflibercept) in Subjects with Diabetic Macular Edema [INFINITY] *sponsor unmasked for enhanced safety monitoring as of May 2021
Hypothesis: Patients undergoing pars plana vitrectomy for the indication of diabetic vitreous hemorrhage will have a lower incidence of postoperative vitreous hemorrhaging during the 6-month trial period when vitreous substitution with 20-30% sulfur hexafluoride gas is utilized compared to vitreous substitution with balanced salt solution.