View clinical trials related to Diabetic Retinopathy.
Filter by:To characterize both functionally and morphologically initial Diabetic Retinopathy (DR) stages and their progression over a period of 10 years.
Obstructive sleep apnea (OSA) is characterized by intermittent nocturnal hypoxemia, frequent arousals, fragmented sleep and daytime sleepiness. It has been shown to increase the risk of cardiac and vascular disease through multiple mechanisms including sympathetic hyperactivity, metabolic dysregulation, and activation of oxidative stress and inflammatory pathways. Diabetic retinopathy is a leading cause of blindness in the working age group, affecting 93 million people worldwide. Diabetic macular edema (DME) is a sight threatening complication and the most common cause of visual loss in patients with diabetes. OSA is frequently associated with diabetes with prevalence ranging from 23 to 86%. However, the relationship between OSA and DME is not well defined. The retina is especially susceptible to hypoxia, being one of the most metabolically active tissues. Many of the same inflammatory mediators have also been found to be elevated in patients with diabetic macular edema, including VEGF, VCAM-1 and IL-6. There has been no previous study examining the biochemical impact of OSA on patients with DME. We aim to explore this relationship by examining the differences in inflammatory markers expressed in patients with DME who have undergone an overnight sleep study, which is considered the gold standard diagnostic tool in OSA.
Using Optical Coherence Tomography and ImageJ software the investigators will analyze retinal and choroidal vascular changes and their impact on retinal layers among patients with diabetes without retinopathy and patients with diabetes and retinopathy.
To identify biomarkers, obtained using non-invasive procedures, that can predict disease progression and progression to sight-threatening stages of the disease and to characterize the retinal changes that occur in Non Proliferative Diabetic Retinopathy (NPDR).
The investigators aim to improve the diagnostic accuracy and the clinical referral rate for diabetic retinopathy by using a deep learning-based software.
In this study, we will prospectively evaluate the accuracy of a deep-learning based software algorithm in the detection of diabetic retinopathy from 60° wide single-field retinal fundus images.
Brief Summary: The main objective of EviRed project is to develop and validate a system assisting the ophthalmologist by improving prediction of evolution, and decision making during diabetic retinopathy (DR) follow-up. It will replace the current classification of diabetic retinopathy (DR) which provides an insufficient prediction precision. It will use modern available fundus imaging devices and artificial intelligence (AI) to properly integrate the amount of data they provide with other medical data of the patient. A cohort of 5000 diabetic patients will be recruited and followed for an average of 2 years in order to collect data to train and validate the new prediction system.
DMO is the most common cause of visual loss in people with diabetes. Regular injections of bevacizumab (Avastin) given as frequently as every month remain the current standard of care for centre-involving DMO; however, this regimen is impractical for many Aboriginal patients. Using Ozurdex implants every 3-6 months could be as effective as the currently used Avastin injections. In order to address this real-world problem, this study seeks to investigate whether it is possible to safely use a long-acting steroid preparation such as the dexamethasone IVT implant (Ozurdex) to manage DMO in Aboriginal patients living in Western Australia.
AEYE-DS is a software device developed to increase compliance with diabetic retinopathy screening by automatically detecting more-than-mild diabetic retinopathy from digital fundus images using Artificial Intelligence (AI)-based software. This study has been designed to validate the safety and efficacy of the device at primary care and other point of care sites.
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.