View clinical trials related to Retinal Ischemia.
Filter by:The objective of this study is to test the hypothesis that following the use of intravitreal dexamethasone implant for the treatment of DME, there will be an observable increase in the capillary density plexus as denoted by the quantitative assessment of the superficial capillary plexus on OCTA, as well as a decrease in size of the foveal avascular zone (FAZ).
Remote ischemic conditioning (RIC) is a therapeutic strategy for protecting organs or tissue against the detrimental effects of acute ischemia-reperfusion injury. It remains unknown whether this can be used in retinal ischemic diseases. The purpose of the present study is to examine if the autoregulation of retinal vessel diameters in diabetic patients change after remote ischemic conditioning and if the observations are different from what have been observed in normal persons.
The investigators will be using nocturnal normobaric hyperoxia therapy in patients with diagnoses of conditions related to retinal ischemia.
This study is directed to evaluate the role of Optical Coherence Tomography Angiography (OCT-A) in the evaluation of the perifoveal vascular network in type 1 diabetic patients, and to investigate the relationship between OCT-A-derived parameters and demographic and clinical factors, as metabolic control and duration of the disease.
Retinal vessel occlusions might lead to ischemia of the inner retina, more severe so in artery occlusions. Intracellular edema may develop and decrease transparency of those layers, showing retinal edema. In spectral domain optical coherence tomography (SD-OCT) retinal reflectivity changes as a result of retinal edema. The investigators examine the reflectivity changes of different retinal layers between healthy eyes and eyes with retinal artery occlusion and ischemic or non-ischemic vein occlusions. Aim of the study is to evaluate whether those changes can be used to measure the level of ischemia in the inner retina.
The object of the study is to compare treatment of iris/angle neovascularization with panretinal photocoagulation (laser) to treatment with panretinal photocoagulation and an anti-angiogenic drug: ranibizumab.