Search results for "Retinopathy"
showing 10 items of 198 documents
Intravitreal ranibizumab for symptomatic drusenoid pigment epithelial detachment without choroidal neovascularization in age-related macular degenera…
2011
Roberto Gallego-Pinazo,1,2 Ana Marina Suelves-Cogollos1, Ester Francés-Muñoz,1 J María Millán,2,3 J Fernando Arevalo,4 J Luis Mullor,5 Manuel Díaz-Llopis,1,2,61Department of Ophthalmology, Hospital Universitario La Fe, Valencia, Spain; 2Centro de Investigación Biomédica en Red de Enfermedades Raras, Valencia, Spain; 3Department of Genetics, Hospital Universitario La Fe, Valencia, Spain; 4Retina and Vitreous Service, Clínica Oftalmológica Centro Caracas, Caracas, Venezuela; 5Unit of Experimental Ophthalmology, Fundación para la Investigación del Hospital Universitario La F…
Incidence and Risk Factors for Tractional Macular Detachment after Anti-Vascular Endothelial Growth Factor Agent Pretreatment before Vitrectomy for C…
2019
The study&rsquo
Use in clinical practice of an automated screening method of diabetic retinopathy that can be derived using a diagnostic artificial intelligence syst…
2020
Abstract Background and Objective To compare the diagnostic performance of an autonomous diagnostic artificial intelligence (AI) system for the diagnosis of derivable diabetic retinopathy (RDR) with manual classification. Materials and Methods Patients with type 1 and type 2 diabetes participated in a diabetic retinopathy (RD) screening program between 2011–2012. 2 images of each eye were collected. Unidentifiable retinal images were obtained, one centered on the disc and one on the fovea. The exams were classified with th e autonomous AI system and manually by anonymous ophthalmologists. The results of the AI system and manual classification were compared in terms of sensitivity and specif…
Antioxidant Supplements and Diabetic Retinopathy
2014
Abstract Conventional treatments for diabetic retinopathy (DR) includes glycemic control, laser photocoagulation, vitrectomy, intravitreal triamcinolone, and intravitreal anti-vascular endothelial growth factor agents. However these strategies have not proved capable of halting the progression of this disease in all cases. The mechanisms leading to DR are not fully understood, but there is a growing body of evidence showing that oxidative stress plays a pivotal role in the development of this diabetic complication. In fact it has been proposed that oxidative stress is the initial and maintaining event that triggers and provides feedback to the other pathophysiological pathways related to DR…
Platelet Activity and Blood Lipid Changes in Diabetes Mellitus
1984
An altered platelet function can often be found in diabetes mellitus (2, 3, 4, 10, 13, 16, 17, 23, 24). Several studies have pointed towards an increased sensitivity of platelets to ADP induced aggregation (3, 6, 23) in diabetic patients; this phenomenon can also be found in diabetics without apparent vasculopathy and in subjects with altered glucose tolerance (3, 23).
Prophylaxis of Macular Edema with Intravitreal Ranibizumab in Patients with Diabetic Retinopathy after Cataract Surgery: A Pilot Study
2011
The purpose of this study was to evaluate the effectiveness of intravitreal ranibizumab (Lucentis, Genentech, South San Francisco, Calif, USA) combined with cataract surgery for the prevention of clinically significant macular edema (CSME) in patients with diabetic retinopathy (DR). This prospective interventional case series included fifty-four eyes of 54 patients with a previous diagnosis of nonproliferative diabetic retinopathy (NPDR) without macular edema preoperatively. Subjects were assigned in a 1 : 1 ratio to receive an intraoperative intravitreal ranibizumab injection (n=27) or not (control group,n=27) associated with standardised phacoemulsification surgery. The main outcome measu…
Eye disease and mortality, cognition, disease, and modifiable risk factors: an umbrella review of meta-analyses of observational studies
2022
Globally, 2.2 billion people live with some form of vision impairment and/or eye disease. To date, most systematic reviews examining associations have focused on a single eye disease and there is no systematic evaluation of the relationships between eye diseases and diverse physical and mental health outcomes. Moreover, the strength and reliability of the literature is unclear. We performed an umbrella review of observational studies with meta analyses for any physical and/or mental comorbidities associated with eye disease. For each association, random-effects summary effect size, heterogeneity, small-study effect, excess significance bias and 95% prediction intervals were calculated, and …
Fructose diet induced short-term impairment of cone sensitivity and gene expression in rat retina
2012
National audience; Abstract: Purpose A high fructose diet has been widely used to trigger insulin resistance in rodent; insulin resistance is one of the major risk factor for the development of type 2 diabetes. Thirty to 40% of diabetic patients develop diabetic retinopathy. In this study, we aimed to evaluate the short-term effect, at 1, 3, 5, 8 days, of a 60% fructose diet, on photoreceptor sensitivity and gene expression in the retina of Brown Norway rats. Methods: Flicker electroretinograms (8Hz) were recorded under anesthesia, from both eyes simultaneously in order to study sensitivity of photoreceptors. Then, rats were euthanized and enucleated. Retinae and posterior poles were collec…
Optical Coherence Tomography Angiography of Macula and Optic Nerve in Autism Spectrum Disorder: A Pilot Study
2020
The aim of this study was to compare retinal thicknesses and vascular parameters between autism spectrum disorder (ASD) and neurotypical (NT) individuals. Recruited ASD subjects and age- and sex-matched NT controls underwent 2 optical coherence tomography scans (OCT) (macular cube and optic nerve cube) and 2 OCT angiography (OCTA) scans (macular and optic nerve head (ONH) OCTA) with the device Cirrus 5000 (Zeiss). Concerning OCT, we considered full retina thickness in 9 macular sectors of the Early Treatment Diabetic Retinopathy Study (ETDRS) pattern and peripapillary retinal nerve fiber layer (pRNFL) thickness in 4 quadrants and 12 clock-hour sectors. Vessel density and capillary perfusion…
Oxidative Stress in Diabetic Retinopathy
2021
Diabetic Retinopathy (DR) is a progressive asymptomatic neuro-vascular complication of diabetes that triggers irreversible retinal damage [...]