View clinical trials related to Diabetic Retinopathy.
Filter by:Background: - To understand diseases of the retina and the eye, information is needed about people with and without such diseases. Researchers want to study these people and follow them over time. They also want to study body tissues and blood to understand the nature of eye disease. Studying genes, cells, and tissues may help them understand why some people get eye problems and others do not, or why some people respond to treatment while others do not. Researchers want to collect physical samples and personal data to develop a National Eye Institute database. Objectives: - To collect health information and blood and tissue samples from people with and without eye diseases, to be used in research studies. Eligibility: - Individuals of any age with different types of eye disease. - Healthy volunteers with no history of eye disease. Design: - Participants may be recruited from National Eye Institute studies or may be referred from other sources. - Participants will be screened with a physical exam and medical history. They will also have a full eye exam. Questions will be asked about family medical history, especially about eye disease. - Blood samples will be collected. Other samples, such as saliva, tears, hair, stool, and urine, may be collected as needed. Adult participants may also provide a skin sample. - Tissue or fluid from eye collected as part of eye care or treatment may also be added to the database. - No treatment will be provided as part of this study.
The primary objective of the protocol is to determine if visual acuity outcomes at 2 years in eyes with proliferative diabetic retinopathy (PDR) that receive anti-vascular endothelial growth factor (anti-VEGF) therapy with deferred panretinal photocoagulation (PRP) are non-inferior to those in eyes that receive standard prompt PRP therapy. Secondary objectives include: - Comparing other visual function outcomes (including Humphrey visual field testing and study participant self-reports of visual function) in eyes receiving anti-VEGF with deferred PRP with those in eyes receiving prompt PRP. - Determining percent of eyes not requiring PRP when anti-VEGF is given in the absence of prompt PRP. - Comparing safety outcomes between treatment groups. - Comparing associated treatment and follow-up exam costs between treatment groups.
The purpose of this study is to compare the morphological and visual acuity outcomes associated with 1.5 mg bevacizumab versus 0.5 ranibizumab intravitreal injections for treatment of diabetic macular edema.
Primary objective of this trial will be to evaluate the safety and efficacy of intravitreal injections of Macugen (pegaptanib sodium) when given at least 7-14 days prior to vitrectomy in subjects with tractional retinal detachment (with or withoutmacular involvement) secondary to proliferative diabetic retinopathy. Secondary objective is to evaluate regression of neovascularization and progression of macular traction utilizing OCT and fundus photographs.
Intravitreal injections of pegaptanib will induce the regression of Proliferative Diabetic Retinopathy (PDR) and reduce the need for retinal photocoagulation.
Analysis of vitreous proteins in patients undergoing pars plana vitrectomy for proliferative diabetic retinopathy
To evaluate if intravitreal Ozurdex can reduce the incidence of recurrent vitreous hemorrhage after primary pars plana vitrectomy (PPV) in patients with proliferative diabetic retinopathy (PDRP).
This study is to see whether treating diabetic retinal swelling with ranibizumab injections into the eye monthly is better than treating diabetic retinal swelling with ranibizumab injections into the eye less frequently.
This is a two-part study. The first part (Stratum I) is an open-label, dose escalation, safety, tolerability and pharmacokinetic study, where active study drug (PF-04523655) will be given to all patients who participate. Stratum I will determine the maximum tolerated dose and any dose-limiting toxicities. The second part (Stratum II) is a prospectively randomized, multi-center, double-masked, dose ranging study evaluating the efficacy and safety of PF-04523655 alone and in combination with ranibizumab versus ranibizumab alone in patients with DME.
To characterise phenotypes of Non Proliferative Diabetic Retinopathy (NPDR) progression using multimodal testing/imaging procedures.