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Fletta eftir efnisorði "Sjónhimna"

Fletta eftir efnisorði "Sjónhimna"

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    Automation improves repeatability of retinal oximetry measurements 
    Karlsson, Róbert Arnar; Ólafsdottir, Ólöf Birna; Helgadóttir, Védis; Belhadj, Soumaya; Elíasdóttir, Þórunn Scheving; Stefánsson, Einar; Harðarson, Sveinn Hákon (2021-12)
    Purpose Retinal oximetry is a technique based on spectrophotometry where images are analyzed with software capable of calculating vessel oxygen saturation and vessel diameter. In this study, the effect of automation of measurements of retinal vessel ...
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    A lipid nanocapsule formulation for drug delivery to the retina 
    Urimi, Dileep (University of Iceland, School of Health Sciences, Faculty of Pharmaceutical Sciences, 2023-08)
    Inherited retinal degeneration (RD), a rare neurodegenerative group of retinal blinding disorders and is characterized by a progressive loss of retinal photoreceptor cells that are responsible for vision. The symptoms of RD include onset of night ...
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    Molecular genetics of inherited retinal degenerations in Icelandic patients 
    Thorsteinsson, Daniel A.; Stefánsdóttir, Vigdís Fjóla; Eysteinsson, Þór; Thorisdottir, Sigridur; Jónsson, Jón Jóhannes (2021-08)
    The study objective was to delineate the genetics of inherited retinal degenerations (IRDs) in Iceland, a small nation of 364.000 and a genetic isolate. Benefits include delineating novel pathogenic genetic variants and defining genetically homogenous ...
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    Nicotinamide provides neuroprotection in glaucoma by protecting against mitochondrial and metabolic dysfunction 
    Tribble, James R.; Otmani, Amin; Sun, Shanshan; Ellis, Sevannah A.; Cimaglia, Gloria; Vohra, Rupali; Jöe, Melissa; Lardner, Emma; Venkataraman, Abinaya P.; Domínguez-Vicent, Alberto; Kokkali, Eirini; Rho, Seungsoo; Jóhannesson, Gauti; Burgess, Robert W.; Fuerst, Peter G.; Brautaset, Rune; Kolko, Miriam; Morgan, James E.; Crowston, Jonathan G.; Votruba, Marcela; Williams, Pete A. (2021-07)
    Nicotinamide adenine dinucleotide (NAD) is a REDOX cofactor and metabolite essential for neuronal survival. Glaucoma is a common neurodegenerative disease in which neuronal levels of NAD decline. We assess the effects of nicotinamide (a precursor to ...
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    Retinal oximetry and systemic arterial oxygen levels 
    Eliasdottir, Thorunn (University of Iceland, School of Health Sciences, Faculty of Nursing, 2017-06)
    Purpose: Continuous peripheral pulse oximetry for monitoring adequacy of oxygenation is probably the most important technological advance for patients’ monitoring and safety in the last decades. Pulse oximetry has the disadvantage of measuring the ...
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    Retinal oximetry with a prototype handheld oximeter during hyperoxia 
    Vehmeijer, Wouter B.; Jonkman, Kelly; Harðarson, Sveinn Hákon; Aarts, Leon; Stefánsson, Einar; Dahan, Albert; Schalij-Delfos, Nicoline E. (2021-03-01)
    Purpose: Retinal oximetry measures oxygen saturation in retinal vessels. With the introduction of a mobile handheld prototype oximeter, this technique will become available for a broader patient population including bedridden patients and newborn babies. ...
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    Retinal Oximetry with Scanning Laser Ophthalmoscope in Infants 
    Vehmeijer, Wouter B.; Magnusdottir, Vigdis; Eliasdottir, Thorunn; Hardarson, Sveinn Hakon; Schalij-Delfos, Nicoline E.; Stefánsson, Einar (Public Library of Science (PLoS), 2016-02-03)
    Dual wavelength retinal oximetry has been developed for adults, but is not available for infants. Retinal oximetry may provide insight into the pathophysiology of oxygen-mediated diseases like retinopathy of prematurity. More insight in the oxygen ...
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    Retinal oxygen metabolism in patients with mild cognitive impairment 
    Ólafsdóttir, Ólöf Birna; Sævarsdóttir, Hrafnhildur Sif; Hardarson, Sveinn Hakon; Hannesdóttir, Kristín Hanna; Traustadóttir, Valgerður Dóra; Karlsson, Róbert Arnar; Einarsdóttir, Anna Bryndís; Jónsdóttir, Katrin Diljá; Stefánsson, Einar; Snædal, Jon (Elsevier BV, 2018)
    Introduction We have previously reported that retinal vessel oxygen saturation is increased in mild-to-moderate dementia of Alzheimer's type when compared with healthy individuals. Mild cognitive impairment (MCI) is the predementia stage of the disease. ...
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    Retinal oxygen saturation changes progressively over time in diabetic retinopathy 
    Harðarson, Sveinn Hákon; Stefánsson, Einar; Bek, Toke (2021-05-12)
    Purpose According to cross-sectional studies, oxygen saturation is elevated in retinal vessels in diabetic patients. We evaluated how retinal oxygenation (metabolic marker), vessel diameters and retinopathy grade (structural markers) change over time ...