Revealed: How a phone's blue light may harm your skin and your sight

Last year, U.S. scientists published research suggesting that blue light might damage vision and speed up the onset of blindness.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news

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Conditions:   Glaucoma;   Vision Impairment and Blindness;   Cataract;   Diabetic Retinopathy;   Eye Diseases Interventions:   Behavioral: Enhanced Intervention Using Patient Navigators;   Other: Usual Care Sponsors:   Columbia University;   Centers for Disease Control and Prevention Recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
Authors: Augstburger E, Héron E, Abanou A, Habas C, Baudouin C, Labbe A Abstract Ischemic optic neuropathies are among the leading causes of severe visual acuity loss in people over 50 years of age. They constitute a set of various entities that are clinically, etiologically and therapeutically different. Anatomically, it is necessary to distinguish anterior and posterior forms. From an etiological point of view, the diagnosis of the arteritic form due to giant cell arteritis requires emergent management to prevent blindness and even death in the absence of prompt corticosteroid treatment. When this diagnosi...
Source: Journal Francais d Ophtalmologie - Category: Opthalmology Tags: J Fr Ophtalmol Source Type: research
Jake Ternent, 22, from Ludworth, Co Durham had resigned himself to going completely blind due to an inherited degenerative eye condition. However, pioneering gene therapy may reverse the damage.
Source: the Mail online | Health - Category: Consumer Health News Source Type: news
Authors: Ahmad A, Ahsan H Abstract The review article focuses on free radicals and oxidative stress involved in ophthalmological diseases such as retinopathy, cataract, glaucoma, etc. Oxidative stress is considered as a key factor involved in the pathology of many chronic diseases including ophthalmic complication and inflammatory process. Oxidative stress and inflammation are closely related pathophysiological processes and are simultaneously found in many pathological conditions. The free radicals produced oxidize cellular components such as lipids and phospholipids leading to lipid peroxidation and trigger the o...
Source: Journal of Immunoassay and Immunochemistry - Category: Biochemistry Tags: J Immunoassay Immunochem Source Type: research
Publication date: April 2020Source: Journal of Functional Foods, Volume 67Author(s): Pablo S. Tate, Mariela C. Marazita, Melisa D. Marquioni-Ramella, Angela Maria SuburoAbstractAged-related macular degeneration (AMD), a prevalent chronic disease leading to blindness, is associated with oxidative damage of the retinal pigment epithelium (RPE). Ilex paraguariensis (yerba mate, YM), widely consumed in South America, is an excellent source of antioxidants and could prevent RPE cell impairment. Therefore, we evaluated the effects of YM extracts or caffeic (CAF) and chlorogenic (CHL) acids, two major Ilex polyphenols on cell dea...
Source: Journal of Functional Foods - Category: Nutrition Source Type: research
AbstractPurposeTo investigate the center-periphery distribution of ON and OFF retinal responses in complete congenital stationary night blindness (cCSNB).MethodsPhotopic full-field flash ERGs (photopic ffERGs) and OPs (photopic ffOPs) and slowm-sequence (to enhance OP prominence) mfERGs (and filtered mfOPs) evoked by a 37 hexagon stimulus array were recorded from normal subjects and cCSNB patients. Discrete wavelet transform (DWT) analysis of photopic ffERGs and mfERGs was also performed in order to assess the contribution of the ON and OFF retinal pathways (i.e., OFF-to-ON ratio) in both cohorts.ResultsAs expected, the ph...
Source: Documenta Ophthalmologica - Category: Opthalmology Source Type: research
Contrast-induced encephalopathy (CIE) is a rare complication of cardiac catheterization; clinical manifestations include cortical blindness, seizures and focal neurological deficits. In general, recurrent epil...
Source: BMC Cardiovascular Disorders - Category: Cardiology Authors: Tags: Case report Source Type: research
Abstract Primary open-angle glaucoma (POAG) is the second leading cause of irreversible blindness worldwide. Increased endothelin-1 (ET-1) has been observed in aqueous humour (AH) of POAG patients, resulting in an increase in the out-flow resistance of the AH. However, the underlining mechanisms remain elusive. Using established in vivo and in vitro POAG models, we demonstrated that water channel Aquaporin 1 (AQP1) is down-regulated in trabecular meshwork (TM) cells upon ET-1 exposure, which causes a series of glaucomatous changes, including actin fibre reorganization, collagen production, extracellular matrix dep...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
Glaucoma is a globally unmet medical challenge and the most prevalent neurodegenerative disease, which permanently damages the optic nerve and retinal ganglion cells (RGCs), leading to irreversible blindness. Present therapies target solely at lowering intraocular ocular pressure (IOP), a major risk factor of the disease; however, elevated IOP is neither necessary nor sufficient to cause glaucoma. Glaucomatous RGC and nerve fiber loss also occur in individuals with normal IOP. Recent studies have provided evidence indicating a link between elevated IOP and T cell-mediated autoimmune responses, particularly that are specifi...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
This article reviews current theories of pathophysiological mechanisms underlying glaucoma and recent research - with a focus on neuroprotection and current preclinical and clinical studies to improve the diagnosis and treatment of glaucoma. PMID: 32040976 [PubMed - in process]
Source: Klinische Monatsblatter fur Augenheilkunde - Category: Opthalmology Tags: Klin Monbl Augenheilkd Source Type: research
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