keyword
MENU ▼
Read by QxMD icon Read
search

Eye field

keyword
https://www.readbyqxmd.com/read/28335491/health-and-wellbeing-of-occupants-in-highly-energy-efficient-buildings-a-field-study
#1
Peter Wallner, Peter Tappler, Ute Munoz, Bernhard Damberger, Anna Wanka, Michael Kundi, Hans-Peter Hutter
Passive houses and other highly energy-efficient buildings need mechanical ventilation. However, ventilation systems in such houses are regarded with a certain degree of skepticism by parts of the public due to alleged negative health effects. Within a quasi-experimental field study, we investigated if occupants of two types of buildings (mechanical vs. natural ventilation) experience different health, wellbeing and housing satisfaction outcomes and if associations with indoor air quality exist. We investigated 123 modern homes (test group: with mechanical ventilation; control group: naturally ventilated) built in the years 2010 to 2012 in the same geographic area and price range...
March 19, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28334175/attenuated-fast-steady-state-visual-evoked-potentials-during-human-sleep
#2
Omer Sharon, Yuval Nir
During sleep, external sensory events rarely elicit a behavioral response or affect perception. However, how sensory processing differs between wakefulness and sleep remains unclear. A major difficulty in this field stems from using brief auditory stimuli that often trigger nonspecific high-amplitude "K-complex" responses and complicate interpretation. To overcome this challenge, here we delivered periodic visual flicker stimulation across sleep and wakefulness while recording high-density electroencephalography (EEG) in humans...
February 25, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28333895/visual-field-defects-in-young-patients-with-open-angle-glaucoma-comparison-between-high-tension-and-normal-tension-glaucoma
#3
Ji-Hye Park, Chungkwon Yoo, Jinhwan Park, Yong Yeon Kim
PURPOSE: To investigate the clinical features of young Korean patients with open-angle glaucoma (OAG), and to compare visual field (VF) defects between patients with normal-tension glaucoma (NTG) and those with high-tension glaucoma (HTG). MATERIALS AND METHODS: Patients with OAG younger than 40 years of age were divided into NTG and HTG groups based on untreated intraocular pressure (IOP) level. The patients were matched according to the mean deviation of standard automated perimetry...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28333890/the-association-between-clinical-features-seen-on-fundus-photographs-and-glaucomatous-damage-detected-on-visual-fields-and-optical-coherence-tomography-scans
#4
Paula A Alhadeff, Carlos G De Moraes, Monica Chen, Ali S Raza, Robert Ritch, Donald C Hood
PURPOSE: To classify the appearance of the optic disc seen on fundus photographs of healthy subjects and patients with or suspected glaucoma whose diagnosis was based upon visual fields (VFs) and spectral-domain optical coherence tomography (sdOCT) results. PATIENTS AND METHODS: One eye of 100 patients with or suspected glaucoma and 62 healthy subjects were prospectively tested with 24-2 and 10-2 VF and macular and disc sdOCT cube scans. All eyes with or suspected glaucoma had a 24-2 mean deviation better than -6...
March 22, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28327135/stratification-of-phaco-trabectome-surgery-results-using-a-glaucoma-severity-index-in-a-retrospective-analysis
#5
Pritha Roy, Ralitsa T Loewen, Yalong Dang, Hardik A Parikh, Igor I Bussel, Nils A Loewen
BACKGROUND: To stratify the outcomes of phacoemulsification combined with trabectome surgery using a new glaucoma severity index. METHODS: This is a retrospective, observational cohort study that included open angle glaucoma patients with visually significant cataract that had phacoemulsification combined with trabectome surgery. Exclusion criteria were follow-up less than 12 months, any other surgeries or diagnosis of neovascular or active uveitic glaucoma. Patients were stratified into four groups according to the Glaucoma Index (GI) that incorporated preoperative intraocular pressure (IOP), number of medications and visual field status...
March 21, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28326607/effect-of-apparent-depth-cues-on-accommodation-in-a-badal-optometer
#6
Carles Otero, Mikel Aldaba, Beatriz Martínez-Navarro, Jaume Pujol
BACKGROUND: The aim was to analyse the effect of peripheral depth cues on accommodation in Badal optometers. METHODS: Monocular refractions at 0.17 and 5.00 D of accommodative stimulus were measured with the PowerRef II autorefractor (Plusoptix Inc., Atlanta, Georgia, USA). Subjects looked (randomly) at four different scenes, one real scene comprising familiar objects at different depth planes (Real) and three virtual scenes comprising different two-dimensional pictures seen through a Badal lens...
March 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28325101/-i-had-no-idea-what-a-complicated-business-eating-is%C3%A2-a-qualitative-study-of-the-impact-of-dysphagia-during-stroke-recovery
#7
Jennifer Moloney, Margaret Walshe
AIM: Persons with dysphagia following stroke may experience uncomfortable symptoms such as persistent coughing, choking and poor salivary management. They may also spend long periods of time unable to eat or drink or with restrictions on oral intake. Experiences of dysphagia post-stroke are richly described in unsolicited narratives such as autobiographies on the stroke event, which often include details of the author's journey through their stroke recovery. The aim of this study is to use autobiographical accounts to explore the experiences of those living with dysphagia following stroke...
March 21, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28324452/a-review-of-ranibizumab-for-the-treatment-of-diabetic-retinopathy
#8
REVIEW
Michael W Stewart
INTRODUCTION: Laser photocoagulation has been the standard treatment for diabetic macular edema (DME) and proliferative diabetic retinopathy (PDR) for several decades. The discovery of vascular endothelial growth factor (VEGF) and the subsequent determination of its critical role in the development DME and PDR has led to the development of VEGF inhibitory drugs. Ranibizumab was the first anti-VEGF drug approved for the treatment of both DME and diabetic retinopathy in eyes with DME. METHODS: Medline searches with the keywords "ranibizumab," "diabetic macular edema," and "proliferative diabetic retinopathy" were performed to identify pertinent pre-clinical studies and clinical trials...
March 21, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28323668/mindfulness-meditation-training-and-executive-control-network-resting-state-functional-connectivity-a-randomized-controlled-trial
#9
Adrienne A Taren, Peter J Gianaros, Carol M Greco, Emily K Lindsay, April Fairgrieve, Kirk Warren Brown, Rhonda K Rosen, Jennifer L Ferris, Erica Julson, Anna L Marsland, J David Creswell
OBJECTIVE: Mindfulness meditation training has been previously shown to enhance behavioral measures of executive control (e.g. attention, working memory, cognitive control), but the neural mechanisms underlying these improvements are largely unknown. Here, we test whether mindfulness training interventions foster executive control by strengthening functional connections between dorsolateral prefrontal cortex (dlPFC) - a hub of the executive control network - and frontoparietal regions that coordinate executive function...
March 20, 2017: Psychosomatic Medicine
https://www.readbyqxmd.com/read/28323395/development-of-a-didactical-training-concept-for-peer-tutors-in-gross-anatomy
#10
Simone Alvarez, Christoph Nikendei, Jobst-Hendrik Schultz
Even though peer tutors are often used in gross anatomy courses, research in the field is rather a subject of the last two decades. This is especially true about the didactical challenges these types of peer tutors experience during their tutorials and about how they are prepared for the task. The aim of the presented study was to learn about the training needs of the tutors, and to subsequently design, implement, and evaluate a didactical training concept. A qualitative design was chosen to examine how tutors can best be prepared for tutorials of gross anatomy...
March 21, 2017: Anatomical Sciences Education
https://www.readbyqxmd.com/read/28322732/glaucoma-patient-reported-concerns-and-associated-factors
#11
Rachel S Mogil, Andrew Tirsi, Jung Min Lee, Celso Tello, Sung Chul Park
PURPOSE: To assess the character and degree of concerns of glaucoma patients and identify demographic/clinical factors affecting the concerns. DESIGN: Prospective cross-sectional study. METHODS: A questionnaire that addressed patients' concerns was administered to consecutive glaucoma patients. Severity of concern was scored with a scale of 0 to 5 in order of increasing severity. Age, gender, intraocular pressure, visual field (VF) mean deviation (MD), number of anti-glaucoma medications, history of glaucoma surgery, and employment status were recorded...
March 16, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28322387/color-resolution-improvement-of-the-dark-field-microscopy-imaging-of-single-light-scattering-plasmonic-nanoprobes-for-microrna-visual-detection
#12
Jun Zhou, Peng Fei Gao, Hong Zhi Zhang, Gang Lei, Lin Ling Zheng, Hui Liu, Cheng Zhi Huang
Imaging of light scattering plasmonic nanoparticles (PNPs) with the aid of the dark-field microscopy imaging (iDFM) technique has attracted wide attention owing to its high signal-to-noise ratio, but to improve the color resolution and contrast of dark-field microscopy (DFM) images of single light scattering PNPs in a small spectral variation environment is still a challenge. In this study, a new color analytical method for resolving the resolution and contrast in DFM images has been developed and further applied for colorimetric analysis using the digital image processing technique...
March 21, 2017: Nanoscale
https://www.readbyqxmd.com/read/28321551/top-down-cortical-interactions-in-visuospatial-attention
#13
Timothy P Meehan, Steven L Bressler, Wei Tang, Serguei V Astafiev, Chad M Sylvester, Gordon L Shulman, Maurizio Corbetta
The voluntary allocation of visuospatial attention depends upon top-down influences from the frontal eye field (FEF) and intraparietal sulcus (IPS)-the core regions of the dorsal attention network (DAN)-to visual occipital cortex (VOC), and has been further associated with within-DAN influences, particularly from the FEF to IPS. However, the degree to which these influences manifest at rest and are then modulated during anticipatory visuospatial attention tasks remains poorly understood. Here, we measured both undirected and directed functional connectivity (UFC, DFC) between the FEF, IPS, and VOC at rest and during an anticipatory visuospatial attention task, using a slow event-related design...
March 20, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28319324/future-of-robotic-surgery-in-urology
#14
Jens J Rassweiler, Riccardo Autorino, Jan Klein, Alex Mottrie, Ali Serdar Goezen, Jens-Uwe Stolzenburg, Koon H Rha, Marc Schurr, Jihad Kaouk, Vipul Patel, Prokar Dasgupta, Evangelos Liatsikos
OBJECTIVES: To provide a comprehensive overview of the current status and future perspectives in the field of robotic systems for urologic surgery. MATERIALS AND METHODS: A non-systematic literature review was performed by using PubMed / Medline search electronic engines. Existing patents for robotic devices were researched using the Google search machine. Findings were critically analyzed also by taking into account personal experience of the authors. RESULTS: Relevant patents of the first generation of the da Vinci platform will expire in 2019...
March 20, 2017: BJU International
https://www.readbyqxmd.com/read/28316877/progression-of-pro23his-retinopathy-in-a-miniature-swine-model-of-retinitis-pigmentosa
#15
Patrick A Scott, Juan P Fernandez de Castro, Paul J DeMarco, Jason W Ross, Josephat Njoka, Eric Walters, Randall S Prather, Maureen A McCall, Henry J Kaplan
PURPOSE: We characterize the progression of retinopathy in Filial 1 (F1) progeny of a transgenic (Tg) founder miniswine exhibiting severe Pro23His (P23H) retinopathy. METHODS: The F1 TgP23H miniswine progeny were created by crossing TgP23H founder miniswine 53-1 with wild type (WT) inbred miniature swine. Scotopic (rod-driven) and photopic (cone-driven) retinal functions were evaluated in F1 TgP23H and WT littermates using full field electroretinograms (ffERGs) at 1, 2, 3, 6, 9, 12, and 18 months of age, as well as the Tg founder miniswine at 6 years of age...
March 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28316876/automated-brightness-and-contrast-adjustment-of-color-fundus-photographs-for-the-grading-of-age-related-macular-degeneration
#16
Edem Tsikata, Inês Laíns, João Gil, Marco Marques, Kelsey Brown, Tânia Mesquita, Pedro Melo, Maria da Luz Cachulo, Ivana K Kim, Demetrios Vavvas, Joaquim N Murta, John B Miller, Rufino Silva, Joan W Miller, Teresa C Chen, Deeba Husain
PURPOSE: The purpose of this study was to develop an algorithm to automatically standardize the brightness, contrast, and color balance of digital color fundus photographs used to grade AMD and to validate this algorithm by determining the effects of the standardization on image quality and disease grading. METHODS: Seven-field color photographs of patients (>50 years) with any stage of AMD and a control group were acquired at two study sites, with either the Topcon TRC-50DX or Zeiss FF-450 Plus cameras...
March 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28316568/towards-a-functional-understanding-of-pgo-waves
#17
REVIEW
Jarrod A Gott, David T J Liley, J Allan Hobson
Ponto-Geniculo-Occipital (PGO) waves are biphasic field potentials identified in a range of mammalian species that are ubiquitous with sleep, but can also be identified in waking perception and eye movement. Their role in REM sleep and visual perception more broadly may constitute a promising avenue for further research, however what was once an active field of study has recently fallen into stasis. With the reality that invasive recordings performed on animals cannot be replicated in humans; while animals themselves cannot convey experience to the extent required to elucidate how PGO waves factor into awareness and behavior, innovative solutions are required if significant research outcomes are to ever be realized...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28315667/hif-signalling-the-eyes-have-it
#18
D J Peet, T Kittipassorn, J P Wood, G Chidlow, R J Casson
The hypoxia inducible factors (HIFs) mediate changes in gene expression in response to hypoxia, and mediate key physiological responses such as angiogenesis. They play important roles in development and normal physiology, as well as in ischaemic and other pathologies. The human eye is a complex organ, with tight regulation of vascularisation and oxygen delivery, with the highly specialised retina containing both highly vascularised and avascular regions. This review, written to honour the significant contribution of Lorenz Poellinger to this field, covers the role of the HIFs in normal development of the eye, specifically the vasculature, as well as their roles in numerous retinal pathologies, including ischaemic retinopathies, and age-related macular degeneration (AMD)...
March 15, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28315309/effects-of-task-demands-on-the-early-neural-processing-of-fearful-and-happy-facial-expressions
#19
Roxane J Itier, Karly N Neath-Tavares
Task demands shape how we process environmental stimuli but their impact on the early neural processing of facial expressions remains unclear. In a within-subject design, ERPs were recorded to the same fearful, happy and neutral facial expressions presented during a gender discrimination, an explicit emotion discrimination and an oddball detection tasks, the most studied tasks in the field. Using an eye tracker, fixation on the face nose was enforced using a gaze-contingent presentation. Task demands modulated amplitudes from 200-350ms at occipito-temporal sites spanning the EPN component...
March 14, 2017: Brain Research
https://www.readbyqxmd.com/read/28315279/the-role-of-sigma-1-receptor-as-a-neuroprotective-target-in-glaucoma
#20
Barbara Mysona, Neil Kansara, Jing Zhao, Kathryn Bollinger
The role of sigma 1 receptor (S1R) in glaucoma is emerging as a promising field of study. Glaucoma is an optic neuropathy that shares common pathogenic mechanisms with other neurodegenerative diseases such as Alzheimer's and Parkinson's disease . S1R modulates multiple cellular functions associated with neurodegeneration . These include Ca(2+) ion homeostasis, endoplasmic reticulum (ER) and oxidative stress , survival signaling pathways, neurotrophin secretion, and glial activation. S1R may also have neurorestorative properties including enhancement of neuronal plasticity and neurite outgrowth...
2017: Advances in Experimental Medicine and Biology
keyword
keyword
52227
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"