keyword
MENU ▼
Read by QxMD icon Read
search

Left Visual Field

keyword
https://www.readbyqxmd.com/read/28739100/movement-of-retinal-vessels-toward-the-optic-nerve-head-after-increasing-intraocular-pressure-in-monkey-eyes-with-experimental-glaucoma
#1
Atsumi Kuroda, Nobuko Enomoto, Kyoko Ishida, Masamitsu Shimazawa, Tetsuro Noguchi, Naoto Horai, Hirotaka Onoe, Hideaki Hara, Goji Tomita
A shift or displacement of the retinal blood vessels (RBVs) with neuroretinal rim thinning indicates the progression of glaucomatous optic neuropathy. In chronic open angle glaucoma, individuals with RBV positional shifts exhibit more rapid visual field loss than those without RBV shifts. The retinal vessels reportedly move onto the optic nerve head (ONH) in response to glaucoma damage, suggesting that RBVs are pulled toward the ONH in response to increased cupping. Whether this phenomenon only applies to RVBs located in the vicinity or inside the ONH or, more generally, to RBVs also located far from the ONH, however, is unclear...
July 21, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28737718/experimental-study-on-the-health-benefits-of-garden-landscape
#2
Juyoung Lee
To mitigate the negative effects of modern cities on health, scientists are focusing on the diverse benefits of natural environments; a conceptual approach to use gardens for promoting human health is being attempted. In this study, the effects of the visual landscape of a traditional garden on psychological and physiological activities were investigated. Eighteen male and female adults participated in this indoor experiment (mean age, 26.7 years). Twelve different landscape images for city and garden were presented continuously for 90 s...
July 24, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28733050/the-optical-imaging-of-an-idiopathic-paracentral-acute-middle-maculopathy-chinese-young-man-and-review-of-the-literatures
#3
REVIEW
Yanyan Chen, Yuedong Hu
We report a case of idiopathic paracentral acute middle maculopathy with typical optical imaging and clinical features. A 26-year-old Chinese policeman presented with a 20-day history of paracentral scotoma in the left eye after early wake-up and long-time working in front of computer the day before. He experienced sudden-onset strong flash in his left eye. Paracentral scotoma appeared in his left eye after 6hours of rest. The general history was negative. His best-corrected visual acuity was 20/20 OU. Anterior segment, dilated fundus examination, papillary evaluation and intraocular pressure were normal...
July 18, 2017: Photodiagnosis and Photodynamic Therapy
https://www.readbyqxmd.com/read/28732759/hemispheric-asymmetries-in-the-processing-of-body-sides-a-study-with-ambiguous-human-silhouettes
#4
Daniele Marzoli, Alessandra Pagliara, Giulia Prete, Gianluca Malatesta, Chiara Lucafò, Caterina Padulo, Alfredo Brancucci, Luca Tommasi
When required to indicate the perceived orientation of pictures of human silhouettes with ambiguous front/back orientation and handedness, both right- and left-handed participants perceive the figures more frequently as right-handed than as left-handed, which seems to indicate an attentional bias towards the right arm of human bodies. Given that past research exploiting the divided visual field paradigm indicated a processing advantage for contralateral body parts in both hemispheres, we tested whether human silhouettes with ambiguous handedness presented in the right visual field would be interpreted more frequently as right-handed compared with those presented in the left visual field...
July 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28726568/double-hyperautofluorescent-ring-on-fundus-autofluorescence-in-abca4
#5
Maria Fernanda Abalem, Cynthia X Qian, Kari Branham, Dana Schlegel, Abigail T Fahim, Naheed W Khan, John R Heckenlively, K Thiran Jayasundera
We report an unusual phenotype in a child with a clinical diagnosis of recessive Stargardt disease (STGD1) and two pathogenic variants in the ABCA4 gene. Typically, the diagnosis of early-onset STGD1 is challenging because children may present with a variety of fundus changes and a variable rate of progression. At the time of his initial visit, the 6-year-old boy presented with 20/200 OD (right eye) and 20/150 OS (left eye), symmetrical mild foveal atrophy without flecks on fundus exam, and foveal hypoautofluorescence surrounded by a homogeneous hyperautofluorescent background on wide-field fundus autofluorescence...
July 20, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28724375/bilateral-idiopathic-retinal-vasculitis-following-coxsackievirus-a4-infection-a-case-report
#6
Izumi Mine, Manzo Taguchi, Yutaka Sakurai, Masaru Takeuchi
BACKGROUND: Coxsackieviruses are members of a group of viruses called the enteroviruses, which may cause respiratory and gastrointestinal symptoms, erythema, meningoencephalitis, myocarditis, pericarditis, and myositis. Unilateral acute idiopathic maculopathy caused by coxsackievirus A16 has been associated with hand, foot, and mouth disease, but only a few reports describe retinitis associated with coxsackievirus serotype B3 or B4. We report a case of bilateral multifocal obstructive retinal vasculitis that developed after coxsackievirus A4 infection...
July 19, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28723787/late-emergence-of-macular-sparing-in-a-stroke-patient-clinical-case-report
#7
Hye-Young Shin, So Hee Kim, Mee Yon Lee, Su Young Kim, Young Chun Lee
RATIONALE: Occlusive cerebrovascular disease is the most common cause of homonymous hemianopia (HH) with macular sparing. PATIENT CONCERNS: A 61-year-old man came to our ophthalmology clinic complaining of right-side hemianopia. Ophthalmic examination, visual field (VF) examination, and brain magnetic resonance imaging (MRI) were performed. DIAGNOSES: He had right HH without macular sparing on the initial VF test. And brain MRI 6 days after the visual symptoms began revealed a left occipital infarction...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28723747/injury-of-optic-radiation-and-visual-field-defect-in-a-patient-with-aneurysmal-subarachnoid-hemorrhage-a-case-report
#8
Sung Ho Jang, Jeong Pyo Seo
RATIONALE: Little is known about optic radiation (OR) injury following aneurysmal subarachnoid hemorrhage (SAH). In the current study, we report on a patient who showed a visual field defect and injury of the OR following aneurysmal SAH, using diffusion tensor tractography (DTT). PATIENT CONCERNS: At 4 weeks from onset, when a 62-year old female started rehabilitation, she complained of a visual field defect. Peripheral field defects were detected on both eyes using the Humphrey visual field test...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28713234/leftward-deviation-and-asymmetric-speed-of-egocentric-judgment-between-left-and-right-visual-fields
#9
Ying Zhou, Bing Li, Gang Wang, Mingsha Zhang, Yujun Pan
The egocentric reference frame is essential for body orientation and spatial localization of external objects. Recent neuroimaging and lesion studies have revealed that the right hemisphere of humans may play a more dominant role in processing egocentric information than the left hemisphere. However, previous studies of egocentric discrimination mainly focused on assessing the accuracy of egocentric judgment, leaving its timing unexplored. In addition, most previous studies never monitored the subjects' eye position during the experiments, so the influence of eye position on egocentric judgment could not be excluded...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28712991/low-beta-cortico-pallidal-coherence-decreases-during-movement-and-correlates-with-overall-reaction-time
#10
Bernadette C M van Wijk, Wolf-Julian Neumann, Gerd-Helge Schneider, Tilmann H Sander, Vladimir Litvak, Andrea A Kühn
Beta band oscillations (13-30 Hz) are a hallmark of cortical and subcortical structures that are part of the motor system. In addition to local population activity, oscillations also provide a means for synchronization of activity between regions. Here we examined the role of beta band coherence between the internal globus pallidus (GPi) and (motor) cortex during a simple reaction time task performed by nine patients with idiopathic dystonia. We recorded local field potentials from deep brain stimulation (DBS) electrodes implanted in bilateral GPi in combination with simultaneous whole-head magneto-encephalography (MEG)...
July 13, 2017: NeuroImage
https://www.readbyqxmd.com/read/28711177/size-of-facial-port-wine-birthmark-may-predict-neurologic-outcome-in-sturge-weber-syndrome
#11
Malgorzata Dymerska, Anna Y Kirkorian, Elizabeth A Offermann, Doris D Lin, Anne M Comi, Bernard A Cohen
OBJECTIVE: To determine whether the size of the birthmark in patients with Sturge-Weber syndrome (SWS) who have brain involvement can help predict neurologic disability. STUDY DESIGN: Fifty-one patients with SWS with facial birthmarks and brain involvement documented on magnetic resonance imaging were included in this retrospective chart review. A neuroradiologist, blinded to all clinical information, assigned a previously validated SWS neuroimaging score. A pediatric neurologist prospectively assigned previously validated neurologic severity scores, based on seizures, hemiparesis, visual field cut, and cognitive impairments...
July 12, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28706756/impact-of-vital-dyes-on-cell-viability-and-transduction-efficiency-of-aav-vectors-used-in-retinal-gene-therapy-surgery-an-in-vitro-and-in-vivo-analysis
#12
Anna P Salvetti, Maria I Patrício, Alun R Barnard, Harry O Orlans, Doron G Hickey, Robert E MacLaren
PURPOSE: Treatment of inherited retinal degenerations using adeno-associated viral (AAV) vectors involves delivery by subretinal injection. In the latter stages, alteration of normal anatomy may cause difficulty in visualizing the retinotomy, retinal detachment extension, and vector diffusion. Vital dyes may be useful surgical adjuncts, but their safety and impact on AAV transduction are largely unknown. METHODS: The effects of Sodium Fluorescein (SF), Membrane Blue (MB), and Membrane Blue Dual (DB) at a range of dilutions were assessed on human embryonic kidney cells in vitro using an AAV2-green fluorescent protein (GFP) reporter at different multiplicities of infection...
July 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28701109/emotion-processing-in-persons-who-respond-vicariously-towards-others-in-pain-disinhibited-left-lateralized-neural-activity-for-threatening-expressions
#13
Melita J Giummarra, Govinda Poudel, P Amanda Niu, Michael E R Nicholls, Joanne Fielding, Antonio Verdejo-Garcia, Izelle Labuschagne
We investigated emotional processing in vicarious pain (VP) responders. VP responders report an explicit sensory and emotional feeling of pain when they witness another in pain, which is greater in magnitude than the empathic processing of pain in the general population. In Study 1, 31 participants completed a chimeric faces task, judging whether emotional chimera in the left, or right, visual field was more intense. VP responders took longer to judge emotionality than non-responders, and fixated more on the angry hemiface in the right visual field, whereas non-responder controls had no lateralized fixation bias...
July 12, 2017: Laterality
https://www.readbyqxmd.com/read/28695542/wide-field-fluorescein-and-indocyanine-green-angiography-findings-in-the-eyes-with-vogt-koyanagi-harada-disease
#14
Ryo Kurobe, Yoshio Hirano, Naomi Niwa, Kazuhiko Sugitani, Tsutomu Yasukawa, Munenori Yoshida, Yuichiro Ogura
BACKGROUND: The purpose of this study is to report wide-field angiography findings before and after steroid therapy in a case with bilateral Vogt-Koyanagi-Harada (VKH) disease. RESULTS: A 44-year-old woman presented with bilateral blurred vision and metamorphopsia accompanied by symptoms of headache and tinnitus. The baseline best-corrected visual acuity was 20/20 in both eyes. Ophthalmic examination revealed a shallow anterior chamber and panuveitis accompanied by multiple serous retinal detachments in both eyes and ciliochoroidal detachments in the left eye...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28684101/acquired-unilateral-scotoma
#15
Amir H Marvasti, Kevin C Chen, Henry A Ferreyra, Julie Falardeau
A 54-year-old white man presented with a "blind spot" temporally in his left eye. Best-corrected visual acuity in the affected eye was 20/20 and Humphrey visual field revealed an enlarged blind spot. Funduscopic examination revealed subtle peripapillary pigmentary changes corresponding to a well-demarcated peripapillary region of hyper- and hypoautofluorescence on fundus autofluorescence (FAF). Outer retinal degenerative changes were detected on spectral domain optical coherence tomography (SD-OCT). A diagnosis of Acute zonal occult outer retinopathy (AZOOR) was made based on clinical history and imaging studies...
July 3, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28674678/tangential-field-radiotherapy-for-breast-cancer-the-dose-to-the-heart-and-heart-subvolumes-what-structures-must-be-contoured-in-future-clinical-trials
#16
Marciana Nona Duma, Anne-Claire Herr, Kai Joachim Borm, Klaus Rüdiger Trott, Michael Molls, Markus Oechsner, Stephanie Elisabeth Combs
BACKGROUND AND PURPOSE: The aim of the present study was to evaluate if it is feasible for experienced radiation oncologists to visually sort out patients with a large dose to the heart. This would facilitate large retrospective data evaluations. And in case of an insufficient visual assessment, to define which structures should be contoured and which structures can be skipped as their dose can be derived from other easily contoured structures for future clinical trials. MATERIAL AND METHODS: Planning CTs of left-sided breast cancer patients treated with 3D-conformal radiotherapy by tangential fields were visually divided into two groups: with an estimated high dose (HiD) and with an estimated low dose (LoD) to the heart...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28660667/pivotal-role-of-hmt-in-long-range-disambiguation-of-interhemispheric-bistable-surface-motion
#17
João Valente Duarte, Gabriel Nascimento Costa, Ricardo Martins, Miguel Castelo-Branco
It remains an open question whether long-range disambiguation of ambiguous surface motion can be achieved in early visual cortex or instead in higher level regions, which concerns object/surface segmentation/integration mechanisms. We used a bistable moving stimulus that can be perceived as a pattern comprehending both visual hemi-fields moving coherently downward or as two widely segregated nonoverlapping component objects (in each visual hemi-field) moving separately inward. This paradigm requires long-range integration across the vertical meridian leading to interhemispheric binding...
June 28, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28660098/gait-implications-of-visual-field-damage-from-glaucoma
#18
Aleksandra Mihailovic, Bonnielin K Swenor, David S Friedman, Sheila K West, Laura N Gitlin, Pradeep Y Ramulu
PURPOSE: To evaluate fall-relevant gait features in older glaucoma patients. METHODS: The GAITRite Electronic Walkway was used to define fall-related gait parameters in 239 patients with suspected or manifest glaucoma under normal usual-pace walking conditions and while carrying a cup or tray. Multiple linear regression models assessed the association between gait parameters and integrated visual field (IVF) sensitivity after controlling for age, race, sex, medications, and comorbid illness...
June 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28659841/comprehension-and-hemispheric-processing-of-irony-in-schizophrenia
#19
Ronit Saban-Bezalel, Nira Mashal
Studies focusing on the comprehension of figurative language among schizophrenia patients (SZ) reveal their difficulties comprehending such language and their tendency to interpret it literally. The present study investigated hemispheric processing and comprehension of irony in 16 SZ patients and 18 typically developing (TD) adults. Two experimental tasks were used: an online divided visual field experiment and an offline irony questionnaire. The results show an atypical reversal of hemispheric processing of irony in SZ patients as compared to TD adults...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28656503/electrophysiological-and-behavioral-evidence-reveals-the-effects-of-trait-anxiety-on-contingent-attentional-capture
#20
Yi-Chun Tsai, Hsin-Jie Lu, Chi-Fu Chang, Wei-Kuang Liang, Neil G Muggleton, Chi-Hung Juan
Few studies have investigated the effects of anxiety on contingent attentional capture. The present study examined contingent attentional capture in trait anxiety by applying a rapid serial visual presentation (RSVP) paradigm during electroencephalographic recording. Overall, the behavioral and electrophysiological results showed a larger capture effect when a distractor was the same color as the target compared to when the distractor was not of the target color. Moreover, high-anxiety individuals showed a larger N2pc in the target colored distractor condition and nontarget colored distractor condition compared to the distractor-absent condition...
June 27, 2017: Cognitive, Affective & Behavioral Neuroscience
keyword
keyword
49887
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"