Active clinical trials for "Retinal Diseases"

premature infants who had a history of intravitreal injection of (Ranibizumab) not less than one year were examined for refractive state and biometry

A prospective observational study of the incidence of treatment-requiring ROP (TR-ROP), at a national level, in Greece.

This study is to evaluate the clinical performance of VeriSee DR for DR screening from color fundus photography images in patients with diabetes mellitus. The sensitivity and specificity of VeriSee DR's automated image analysis for screening the diabetes retinopathy will be determined.

To characterise phenotypes of Non Proliferative Diabetic Retinopathy (NPDR) progression using multimodal testing/imaging procedures.

The purpose of this study is to characterize type 2 diabetic patients with initial alterations of diabetic retinopathy (DR) based on 3 different phenotypes previously identified and different patterns of progression in order to correlate this data with genetic information.

Analysis of vitreous proteins in patients undergoing pars plana vitrectomy for proliferative diabetic retinopathy

The primary purpose was to assess, in diabetic patients without diabetic retinopathy and control subjects, color vision, contrast sensitivity, electroretinography, and flicker-induced vasodilatation using the Dynamic Vessel Analyzer, in order to specify the earliest impaired retinal cells in diabetes, and gain more insight into diabetic retinopathy pathogenesis.

The purpose of this study is to identify the severity level distribution at the moment of diagnosis, in diabetic patients with macular edema from a Mexico City sample, and to identify the rate with severe macular edema that needed immediate treatment.

This study attempts to test capillary responses to various challenges without the need for iontophoresis (electrical current).

In recent years damage to the nerve fibers in the retina has been experienced as an early sign of complications resulting from type 2 diabetes. In addition, it has been presented that people with type 2 diabetes are at increased risk of developing brain diseases, such as mild memory impairment and Alzheimer's disease, as well as mental illness in the form of depression. The eye corresponds to be a protruding part of the brain which means the brain and the eye share common features. Currently it is time and cost consuming to asses changes in the brain, but recent research has shown that patient friendly eye examinations can detect nerve loss brain diseases. Recent studies have shown that depression can also have a physiological component, which can be measured by changes in structures in the retina of the eye. In this research project, we will conduct a clinical study, to assess whether there is an association between changes in the retina of the eye (e.g. vascular structure, retinal thickness and oxygen saturation) and mild memory impairment and depression respectively in people with type 2 diabetes. The clinical study will help to clarify the possibility of including patient-friendly eye examinations in the assessment of minimal memory impairment and depression in patients with type 2 diabetes. 200 people with type 2 diabetes will be invited to participate in a clinical cross-sectional study. The Funen Diabetes Database will be used as recruitment tool. Participants will undergo a thorough eye examination as well as neuropsychological examinations for signs of mild memory impairment. They will also complete questionnaires regarding depressive symptoms. Overall, the research project will help to create awareness in this area among both healthcare professionals and patients. Early risk detection could mean better diabetes care and fewer complications, which will have a major impact on quality of life and contribute to socio-economic gains. Any findings may contribute to the discussion of individualized screening and treatment if some individuals within this group are at increased risk of developing memory impairment or depression.