View clinical trials related to Edema.
Filter by:Diabetic macular oedema (DME) is one of the leading causes of blindness in the United Kingdom's working population. It affects the macula, which lies at the centre of the retina, at the back of the eye. Damage to the macula can occur either because the blood supply is reduced (ischaemic DME), or because the blood vessels are leaking excessively (exudative DME). A chemical called vascular endothelial growth factor (VEGF) may underlie some of the abnormalities seen in DME. Studies have shown that VEGF encourages leakage of fluid from blood vessels and increases the stickiness of white blood cells. When white blood cells are sticky they can attach to blood vessel walls. This may cause small blood vessels to block, and lead to ischaemia. Laser treatment often helps to stabilise exudative DME, but there is currently no recognised treatment for ischaemic DME. Macugen (pegaptanib), a drug that inactivates VEGF, has been tried and found to be of benefit in treating exudative DME. Since VEGF promotes ischaemia, it is possible that Macugen will also prove to be beneficial for ischaemic DME. This has not been tested before. A healthy macula is essential for good vision. The innermost area of the macula, the foveal avascular zone (FAZ), is the most important part. The FAZ is enlarged when it is ischaemic. This is a pilot study to assess whether Macugen can reduce the size of the FAZ in ischaemic DME. The investigators will also assess whether it can reduce retinal thickness and improve vision in ischaemic DME. Thirty patients will be involved in the study for thirty weeks each. They will have their eyes examined and receive an injection of Macugen into the eye every 6 weeks. The study is taking place in the Oxford Eye Hospital and is being funded by Pfizer, the company that makes Macugen.
This study examines topical treatment of under eye circles and swelling.
The purpose of this study is to demonstrate that two investigational treatment regimens have the potential to result in a superior visual acuity improvement as compared to a ranibizumab pro re nata (PRN=as needed) treatment regimen.
Background: - Diabetic macular edema (DME) is a common condition in people with diabetes. DME occurs when blood vessels in the eye leak fluid, resulting in swelling inside the back of the eye and progressive vision loss. Research has shown that good blood sugar control can reduce the risk and severity of DME. However, not all diabetic patients with poor blood sugar control develop DME, and some patients develop DME despite excellent blood sugar control. This suggests that other factors, such as genes or inherited traits, may predispose or protect a diabetic patient from developing DME. Objectives: - To investigate genetic factors that may influence the development of diabetic macular edema. Eligibility: - Individuals at least 18 years of age who have type 2 diabetes, with or without diabetic macular edema. Design: - The study will require one visit to the National Institutes of Health eye clinic. - Participants will be screened with a medical history and basic eye examination. Individuals who have certain eye diseases other than DME may not be allowed to enroll in the study. - Participants will provide a blood sample, and will receive fluorescein angiography (an injection of fluorescein dye, after which a camera will take pictures of the dye as it flows through the blood vessels in the eye). - No treatment will be provided as part of this protocol.
In this mono-center prospective study, the impact of changes in the sphingolipid metabolism in patients with pulmonary edema will be investigated.
Purpose: to evaluate the effect of intravitreal injection of tissue plasminogen activator(tPA) in treatment of refractory diabetic macular edema(DME).
To evaluate, specifically within the Canadian medical environment, the efficacy, safety and cost-efficacy of ranibizumab administered either as combination therapy (ranibizumab plus laser photocoagulation), or as monotherapy in comparison with the current standard of care (laser photocoagulation monotherapy), in patients with visual impairment due to DME.
This study was designed to confirm the efficacy and safety of laser photocoagulation as adjunctive therapy to ranibizumab 0.5 mg versus laser monotherapy in patients with visual impairment due to Diabetic Macular Edema. A subgroup of patients with Proliferative Diabetic Retinopathy were included to evaluate the efficacy and safety of laser photocoagulation as adjunctive therapy to ranibizumab 0.5 mg versus laser monotherapy in this population.
This study aims to assess if Lucentis injection applied into the eye is superior to conventional treatment concerning the prevention of visual loss in patients having clinically significant macular edema secondary to retinal vein occlusion
The objective of this study is to investigate the safety and efficacy of minocycline as a microglia inhibitor in individuals with diabetic macular edema (DME).