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https://www.readbyqxmd.com/read/27919635/a-critical-assessment-on-kidney-allocation-systems
#1
REVIEW
Richard N Formica
The kidney allocation system that took effect on December 4, 2014 represents a significant improvement over the prior approach. It seeks to improve outcomes by longevity matching - pairing kidneys expected to function the longest with recipients expected to live the longest. It addresses the biological barriers faced by highly sensitized patients in an evidence based fashion and it begins to introduce the concept of medical need into kidney allocation by crediting time from the starting dialysis to a patient's waiting time...
October 8, 2016: Transplantation Reviews
https://www.readbyqxmd.com/read/27908604/compatibility-of-phospholipid-liposomal-spray-with-silicone-hydrogel-contact-lens-wear
#2
Michael T M Wang, Kalaivarny Ganesalingam, Chee Seang Loh, Trisha Alberquerque, Suhaila Al-Kanani, Stuti L Misra, Jennifer P Craig
PURPOSE: To assess the effects of two weeks of regular phospholipid liposomal spray application on lipid layer grade, tear film stability, subjective comfort, visual acuity, and lipid deposition in silicone hydrogel contact lens wearers. METHODS: Thirty-one existing contact lens wearers were enrolled and fitted with two week planned replacement silicone hydrogel contact lenses (Acuvue(®) Oasys(®)) in a prospective, randomized, paired-eye, investigator-masked trial...
November 28, 2016: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/27900683/constructing-and-screening-a-metagenomic-library-of-a-cold-and-alkaline-extreme-environment
#3
Mikkel A Glaring, Jan K Vester, Peter Stougaard
Natural cold or alkaline environments are common on Earth. A rare combination of these two extremes is found in the permanently cold (less than 6 °C) and alkaline (pH above 10) ikaite columns in the Ikka Fjord in Southern Greenland. Bioprospecting efforts have established the ikaite columns as a source of bacteria and enzymes adapted to these conditions. They have also highlighted the limitations of cultivation-based methods in this extreme environment and metagenomic approaches may provide access to novel extremophilic enzymes from the uncultured majority of bacteria...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27893066/symptoms-and-satisfaction-of-patients-in-the-patient-reported-outcomes-with-laser-in-situ-keratomileusis-prowl-studies
#4
Malvina Eydelman, Gene Hilmantel, Michelle E Tarver, Elizabeth M Hofmeister, Jeanine May, Keri Hammel, Ron D Hays, Frederick Ferris
Importance: Patient-reported outcomes should be collected using validated questionnaires prior to and following laser in situ keratomileusis (LASIK) surgery. Objective: To report the frequency of patient-reported visual symptoms, dry eye symptoms, satisfaction with vision, and satisfaction with LASIK surgery in the Patient-Reported Outcomes With LASIK (PROWL) studies. Design, Setting, and Participants: The PROWL-1 and PROWL-2 studies were prospective, observational studies conducted from September 13, 2011, to June 27, 2014...
November 23, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27893063/assessment-of-the-psychometric-properties-of-a-questionnaire-assessing-patient-reported-outcomes-with-laser-in-situ-keratomileusis-prowl
#5
Ron D Hays, Michelle E Tarver, Karen L Spritzer, Steve Reise, Gene Hilmantel, Elizabeth M Hofmeister, Keri Hammel, Jeanine May, Frederick Ferris, Malvina Eydelman
Importance: Patient-reported outcome (PRO) measures for laser in situ keratomileusis (LASIK) are needed. Objective: To develop PRO measures to assess satisfaction, eye-related symptoms, and their effect on functioning and well-being following LASIK based on patient and expert input. Design, Setting, and Participants: The Patient-Reported Outcomes With LASIK (PROWL) studies were prospective observational studies of patients undergoing LASIK surgery for myopia, hyperopia, or astigmatism...
November 23, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27890547/a-delphi-study-to-develop-practical-diagnostic-guidelines-for-visual-stress-pattern-related-visual-stress
#6
Bruce J W Evans, Peter M Allen, Arnold J Wilkins
PURPOSE: Visual stress (VS) is characterised by symptoms of visual perceptual distortions and eyestrain when viewing text, symptoms that are alleviated by individually prescribed coloured filters. A recent review supports the existence of VS and its treatment, but noted that controversy remains, in part due to inconsistencies in the diagnosis of the condition. The present paper reviews the diagnostic criteria for VS in the literature and reports a Delphi analysis of the criteria currently used in clinical practice...
November 24, 2016: Journal of Optometry
https://www.readbyqxmd.com/read/27877015/rainbow-glare-after-laser-assisted-in-situ-keratomileusis-a-review-of-literature
#7
REVIEW
Majid Moshirfar, Jordan D Desautels, Tyler S Quist, David F Skanchy, Mark T Williams, Ryan T Wallace
This article reviews the current literature pertaining to rainbow glare (RG), including incidence rate, clinical presentation, etiology, prognosis, and management. RG is a rare optical complication of femtosecond laser-assisted in situ keratomileusis that results in patients seeing an array of spectral bands surrounding point sources of light under mesopic and scotopic conditions. The mechanism is thought to be a consequence of the formation of a transmissive diffraction grating on the posterior surface of the corneal flap created by the FS laser...
2016: Clinical Ophthalmology
https://www.readbyqxmd.com/read/27872754/evaluation-of-contrast-sensitivity-chromatic-vision-and-reading-ability-in-patients-with-primary-open-angle-glaucoma
#8
Maria P Bambo, Blanca Ferrandez, Noemi Güerri, Isabel Fuertes, Beatriz Cameo, Vicente Polo, Jose M Larrosa, Elena Garcia-Martin
Purpose. To compare contrast sensitivity, acquired color vision deficiency, and reading ability in patients with glaucoma at different stages of the disease and to establish correlations between visual field parameters and visual function scores. Methods. This prospective cross-sectional study included 121 glaucoma patients. Subjects with a diagnosis of chronic open angle glaucoma were recruited and classified according to Hodapp-Parrish-Anderson criteria. Patients with severe visual field defects were excluded because they were older, which could bias the interpretation of visual function tests...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27857944/macular-carotenoid-supplementation-improves-disability-glare-performance-and-dynamics-of-photostress-recovery
#9
James M Stringham, Kevin J O'Brien, Nicole T Stringham
BACKGROUND: The so-called macular carotenoids (MC) lutein (L), zeaxanthin (Z), and meso-zeaxanthin (MZ) comprise the diet-derived macular pigment (MP). The purpose of this study was to determine effects of MC supplementation on the optical density of MP (MPOD), repeated-exposure photostress recovery (PSR), and disability glare (DG) thresholds. METHODS: This was a double-blind, placebo-controlled trial. Fifty-nine young (mean age = 21.7), healthy volunteers participated in this study...
2016: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/27836776/the-use-of-clausena-anisata-in-insect-pest-control-in-africa-a-review
#10
REVIEW
L Mukandiwa, V Naidoo, D R Katerere
ETHNOPHARMACOLOGICAL RELEVANCE: Clausena anisata is used traditionally by various communities across Africa against pests such as mosquitoes, flies and weevils among others. Pests are a major cause of disease and production losses in various crop and livestock production systems in Africa. This review discusses the available information on the occurrence, chemistry, biological activity and possible commercialization of Clausena anisata with a view to see the plant species being integrated in pest management...
November 9, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27830202/comparison-of-the-visual-acuity-after-photorefractive-keratectomy-using-early-treatment-diabetic-retinopathy-study-chart-and-e-chart
#11
Saeedeh Ghorbanhosseini, Hassan Hashemi, Ebrahim Jafarzadehpur, Abbasali Yekta, Mehdi Khabazkhoob
PURPOSE: To compare the visual responses of post refractive surgery's patients using Early Treatment Diabetic Retinopathy Study Chart (ETDRS) and E-chart with and without color filters. METHODS: The uncorrected Logarithm of the Minimum Angle of Resolution Visual Acuity (LogMAR VA) of 70 patients with a mean age of 26.2 ± 3.76 years (from 19 to 34 years) who had undergone Photorefractive Keratectomy (PRK) (the range of post operation refractive error: ±0.5 D) was measured under the light conditions of with and without asymmetrical glare by using red, green, and yellow filters and ETDRS chart and E-chart...
December 2016: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/27829389/chronic-post-operative-iris-prosthesis-endophthalmitis-in-a-patient-with-traumatic-aniridia-a-case-report
#12
Kevin C Firl, Sandra R Montezuma
BACKGROUND: Post-operative endophthalmitis is a serious complication of intraocular surgery which may present acutely or chronically. Chronic post-operative endophthalmitis is characterized by decreased visual acuity, mild pain, and low-grade uveitis several weeks or months after intraocular surgery which may be responsive to corticosteroids, but recur upon tapering. Low virulence organisms such as Propionibacterium acnes are the most common culprit organisms, and treatment most often consists of both intravitreal antibiotic injections and surgery...
November 9, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27828894/rotationally-asymmetric-multifocal-intraocular-lenses-preoperative-considerations-and-postoperative-outcomes
#13
Jonathan E Moore, Richard N McNeely, Eric E Pazo, Tara C B Moore
PURPOSE OF REVIEW: The manuscript presents a review of recently published studies reporting objective and subjective outcomes and preoperative considerations of asymmetrical multifocal intraocular lenses (IOLs). RECENT FINDINGS: Current publications suggest that asymmetrical multifocal IOLs provide good, distance, intermediate and near vision for cataract and clear lens extraction patients. The contrast sensitivity achieved is similar to monofocal IOLs. Photopic phenomenon such as glare and halos has been reduced through the use of these IOLs leading to better patient satisfaction...
January 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/27824375/visual-outcomes-after-lasik-using-topography-guided-vs-wavefront-guided-customized-ablation-systems
#14
Ikuko Toda, Takeshi Ide, Teruki Fukumoto, Kazuo Tsubota
PURPOSE: To evaluate the visual performance of two customized ablation systems (wavefront-guided ablation and topography-guided ablation) in LASIK. METHODS: In this prospective, randomized clinical study, 68 eyes of 35 patients undergoing LASIK were enrolled. Patients were randomly assigned to wavefront-guided ablation using the iDesign aberrometer and STAR S4 IR Excimer Laser system (Abbott Medical Optics, Inc., Santa Ana, CA) (wavefront-guided group; 32 eyes of 16 patients; age: 29...
November 1, 2016: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/27813121/family-social-capital-and-health-a-systematic-review-and-redirection
#15
Elena Carrillo Alvarez, Ichiro Kawachi, Jordi Riera Romani
The level (or scale) at which social capital can be conceptualised and measured ranges potentially from the macro-level (regional or country level), to the meso-level (neighbourhoods, workplaces, schools), down to the individual level. However, one glaring gap in the conceptualisation of social capital within the empirical literature has been the level of the family. Our aim in this review is to examine the family as the 'missing level' in studies on social capital and health. To do so, we conducted a systematic review on the use and measurement of this notion in the health literature, with the final intention of articulating a direction for future research in the field...
November 3, 2016: Sociology of Health & Illness
https://www.readbyqxmd.com/read/27792408/the-quest-for-spectacle-independence-a-comparison-of-multifocal-intraocular-lens-implants-and-pseudophakic-monovision-for-patients-with-presbyopia
#16
Steven Greenstein, Roberto Pineda
We performed a literature review comparing multifocal intraocular lens (IOL) implantation with pseudophakic monovision to treat presbyopia. Multifocal IOLs utilize refractive or diffractive principles to treat both distance and near vision, with a single lens implant. Monovision uses traditional monofocal lens implants to treat the dominant eye for emmotropia, and the non-dominant eye for myopia. This planned anisometropia is designed to enhance intermediate or near vision. Generally, distance vision was similar with both types of lens implantation, near vision was better with multifocal IOLs, and intermediate vision appeared to be better in the monovision group...
October 28, 2016: Seminars in Ophthalmology
https://www.readbyqxmd.com/read/27778752/evaluation-of-quantitative-glare-technique-based-on-the-analysis-of-bio-signals
#17
Ho-Sang Lee, Jung-Yong Kim, Murali Subramaniyam, Sangho Park, Seung-Nam Min
This laboratory study evaluated the effect of glare source (Halogen, HID, and LED) and its illumination levels (0.7 lx, 2 lx and 5 lx) using a quantitative methodology. Pupil diameter and electroencephalography were measured using FaceLab and Biopac systems, respectively. The discomfort glare was assessed subjectively with Borg's CR-10 scale. Twenty healthy subjects participated. Pupil size was significantly affected by the headlamp type and illumination condition. Pupil size was smaller when exposed to the LED headlamp than other headlamps (Halogen > HID > LED)...
October 25, 2016: Ergonomics
https://www.readbyqxmd.com/read/27760270/degradation-of-visual-performance-with-increasing-levels-of-retinal-stray-light
#18
Marrie van der Mooren, Robert Rosén, Luuk Franssen, Linda Lundström, Patricia Piers
Purpose: To quantify the effect of induced stray light on halo size, luminance threshold, and contrast sensitivity. Methods: Retinal stray light was induced in five healthy subjects using different photographic filters. The stray light induced ranged from levels observed in intraocular lenses (IOLs) with glistenings (low) to cataract level (high). The visual impact was measured for halo size, luminance detection threshold, and contrast sensitivity with and without a glare source...
October 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27697244/clinical-outcomes-of-a-new-extended-range-of-vision-intraocular-lens-international-multicenter-concerto-study
#19
Béatrice Cochener
PURPOSE: To analyze the clinical outcomes after implantation of an extended range of vision intraocular lens (IOL), the Tecnis Symfony, in a routine clinical setting. SETTING: Forty clinical sites in Finland, France, Germany, Norway, Spain, Sweden, and the United Kingdom. DESIGN: Prospective case series. METHODS: The study comprised 411 patients who had bilateral implantation of the extended range of vision IOL, with intended micro-monovision in 1 group (monovision group) and intended emmetropia in the other group (non-monovision group)...
September 2016: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/27664506/meta-glare-a-meta-system-for-defining-your-own-computer-interpretable-guideline-system-architecture-and-acquisition
#20
Alessio Bottrighi, Paolo Terenziani
CONTEXT: Several different computer-assisted management systems of computer interpretable guidelines (CIGs) have been developed by the Artificial Intelligence in Medicine community. Each CIG system is characterized by a specific formalism to represent CIGs, and usually provides a manager to acquire, consult and execute them. Though there are several commonalities between most formalisms in the literature, each formalism has its own peculiarities. OBJECTIVE: The goal of our work is to provide a flexible support to the extension or definition of CIGs formalisms, and of their acquisition and execution engines...
September 2016: Artificial Intelligence in Medicine
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