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https://www.readbyqxmd.com/read/29344331/the-peripheral-flicker-illusion
#1
Hiroyuki Ito, Tomomi Koizumi
A new illusion is reported. A visual object suddenly appearing on a red background sometimes causes an impression of flicker or double flash. In Experiment 1, a red, green, or blue object was presented on a red, green, blue, or gray background. Participants evaluated the illusion strength in reference to the physical flicker of a gray object presented in central vision. The results show that the green or blue object presented on the red background caused the illusion. In Experiment 2, the effect of retinal eccentricity on the illusion was tested...
November 2017: I-Perception
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#2
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29325382/-knapp-procedure-and-modified-knapp-procedure-with-foster-suture-for-the-treatment-of-double-elevator-palsy
#3
Y P Li, W Zhang, J Ding, H Z Ma, K X Zhao
Objective: To investigate the efficacy of Knapp procedure and modified Knapp procedure with Foster suture in the treatment of double elevator palsy(DEP). Methods: Retrospective study. Twenty-two patients with congenital DEP were underwent Knapp procedure (n=15) and modified Knapp procedure(n=7). The clinical data were retrospectively analyzed, including the preoperative and postoperative vertical deviation in the primary position, ocular motility, and binocular vision. Results: The average vertical deviation in the primary position was (34...
December 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29321562/perception-during-double-step-saccades
#4
E Zimmermann, M C Morrone, P Binda
How the visual system achieves perceptual stability across saccadic eye movements is a long-standing question in neuroscience. It has been proposed that an efference copy informs vision about upcoming saccades, and this might lead to shifting spatial coordinates and suppressing image motion. Here we ask whether these two aspects of visual stability are interdependent or may be dissociated under special conditions. We study a memory-guided double-step saccade task, where two saccades are executed in quick succession...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29315699/topical-administration-of-regorafenib-eye-drops-phase-i-dose-escalation-study-in-healthy-volunteers
#5
Torsten Zimmermann, Joachim Höchel, Michael Becka, Michael K Boettger, Beate Rohde, Barbara Schug, Kathleen S Kunert, Frank Donath
AIM: Regorafenib is a multi-kinase inhibitor under investigation for use in neovascular age-related macular degeneration. In this Phase I study, regorafenib eye drops were administered to healthy volunteers to provide information on safety, tolerability and systemic exposure. METHODS: This was a single-centre, randomized, double-masked, parallel-group, dose-escalation, placebo-controlled study. Subjects received regorafenib eye drops (30 mg ml-1 , 25 μL) as a 0...
January 9, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29310829/-sugammadex-by-ideal-body-weight-versus-20-and-40-corrected-weight-in-bariatric-surgery-double-blind-randomized-clinical-trial
#6
Nádia Maria da Conceição Duarte, Ana Maria Menezes Caetano, Silvio da Silva Caldas Neto, Getúlio Rodrigues de Oliveira Filho, Gustavo de Oliveira Arouca, Josemberg Marins Campos
BACKGROUND AND OBJECTIVES: The weight parameters for use of sugammadex in morbidly obese patients still need to be defined. METHODS: A prospective clinical trial was conducted with sixty participants with body mass index≥40kg·m-2 during bariatric surgery, randomized into three groups: ideal weight (IW), 20% corrected body weight (CW20) and 40% corrected body weight (CW40). All patients received total intravenous anesthesia. Rocuronium was administered at dose of 0...
January 5, 2018: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/29307315/the-national-health-service-nhs-at-70-bevan-s-double-edged-legacy
#7
Rudolf Klein
The paper analyses the achievements and problems stemming from Nye Bevan's model of a tax funded national health care system, on the assumption that only so could equity be achieved. The evidence shows that indeed the National Health Service (NHS) scores highly on equity, so vindicating Bevan's vision. The price paid is that fiscal crises are the norm for the NHS, with ever more centralisation, intensive regulation and performance management. Successive reorganisations represent attempts to square the circle - to combine the strengths of Bevan's model and those of a less hierarchic system - but have so far failed to deliver and can be expected to continue...
January 8, 2018: Health Economics, Policy, and Law
https://www.readbyqxmd.com/read/29304267/double-optic-disc-pit-with-glial-plugs-imaged-by-wide-field-optical-coherence-tomography
#8
Ismini Koulouri, Eric D Gaier, Dean Eliott, Demetrios G Vavvas
A rare case of a woman in her thirties with double optic disc pits involving opposing sectors is reported. Significantly decreased vision due to macular schisis was noted. Wide-field optical coherence tomography revealed distinct laminar defects and glial tufts associated with each pit. This case illustrates a rare view into the pathogenesis of optic disc pits. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:52-54.].
January 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29278620/95th-anniversary-of-pathophysiology-in-croatia
#9
Zdenko Kovač
University level of Pathophysiology research and teaching in Croatia had started with the third year of Medical School of Zagreb in academic year 1919./20. Ever since, despite historical changes of the main university stake holder, the state of Croatia, Department of Pathophysiology development progressed and has made visible academic achievements, with a broader effect in medical community. The first 95 years of academic tradition and major achievements are shortly described in this paper. Professor Miroslav Mikuličić envisioned Pathophysiology in close relations with Pharmacology and made the pioneering steps of establishing the "double" department at Šalata...
December 2017: Psychiatria Danubina
https://www.readbyqxmd.com/read/29276475/evolution-development-and-function-of-vertebrate-cone-oil-droplets
#10
REVIEW
Matthew B Toomey, Joseph C Corbo
To distinguish colors, the nervous system must compare the activity of distinct subtypes of photoreceptors that are maximally sensitive to different portions of the light spectrum. In vertebrates, a variety of adaptations have arisen to refine the spectral sensitivity of cone photoreceptors and improve color vision. In this review article, we focus on one such adaptation, the oil droplet, a unique optical organelle found within the inner segment of cone photoreceptors of a diverse array of vertebrate species, from fish to mammals...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/29246891/corneal-perforation-from-peripheral-ulcerative-keratopathy-in-patients-with-rheumatoid-arthritis-epidemiological-findings-of-the-british-ophthalmological-surveillance-unit
#11
Hannah Mary Timlin, Hildegard Nikki Hall, Barny Foot, Peter Koay
BACKGROUND/AIMS: This study quantifies the threat to vision and the survival in patients presenting with peripheral ulcerative keratopathy (PUK) corneal perforation associated with rheumatoid arthritis (RA) in the UK. METHODS: New cases of corneal perforation from PUK in patients with RA were prospectively collected from the UK via the British Ophthalmological Surveillance Unit from July 2012 to June 2014. An initial questionnaire collected data on presentation and the first 2 weeks' management, and a follow-up questionnaire collected 1-year data on ocular morbidity and mortality...
December 15, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29246631/assessment-of-percheron-infarction-in-images-and-clinical-findings
#12
Zhihua Xu, Lingling Sun, Yang Duan, Jinghua Zhang, Mengzhi Zhang, Xiaonan Cai
OBJECTIVE: To assess the imaging and clinical features of patients with an artery of Percheron infarction comprehensively. METHODS: Of 6539 patients with a first-ever stroke, 18 patients with a Percheron infarction were enrolled, and their images and clinical data were retrospectively investigated. RESULTS: All patients underwent neurological intensive care unit (NICU) management. The initial symptom of a Percheron infarction included dizziness, transient blurred vision, double vision, barylalia, cerebellar ataxia, drowsiness, and a coma...
December 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/29237554/feature-based-attention-potentiates-recovery-of-fine-direction-discrimination-in-cortically-blind-patients
#13
Matthew R Cavanaugh, Antoine Barbot, Marisa Carrasco, Krystel R Huxlin
Training chronic, cortically-blind (CB) patients on a coarse [left-right] direction discrimination and integration (CDDI) task recovers performance on this task at trained, blind field locations. However, fine direction difference (FDD) thresholds remain elevated at these locations, limiting the usefulness of recovered vision in daily life. Here, we asked if this FDD impairment can be overcome by training CB subjects with endogenous, feature-based attention (FBA) cues. Ten CB subjects were recruited and trained on CDDI and FDD with an FBA cue or FDD with a neutral cue...
December 10, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/29217455/a-new-method-to-analyse-the-effect-of-multifocal-contact-lenses-on-visual-function
#14
I Sanchez, S Ortiz-Toquero, M Blanco, R Martin
PURPOSE: Presbyopic contact lens (CL) fittings produce simultaneous vision, providing different retinal images that reduce visual quality and wearers' satisfaction. The purpose of this study was to develop a new method to isolate the multifocality effect of different CL options to manage presbyopia, analysing the impact on binocular visual acuity (VA), stereopsis and contrast sensitivity (CS) and determining the effect of the use of a yellow filter (YF) on visual function. METHODS: A prospective and double-masked randomized pilot study involving 20 healthy volunteers was conducted...
December 4, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/29214645/recovery-characteristics-of-patients-receiving-either-sugammadex-or-neostigmine-and-glycopyrrolate-for-reversal-of-neuromuscular-block-a-randomised-controlled-trial
#15
M J Paech, R Kaye, C Baber, E A Nathan
Sugammadex more rapidly and reliably reverses rocuronium-induced neuromuscular block compared with neostigmine, but it is not known if subsequent patient outcomes, including nausea, vomiting and other aspects of recovery are modified. In this study, we compared the recovery characteristics of sugammadex and neostigmine/glycopyrrolate following reversal of neuromuscular block. This was a single-centre, randomised, blinded, parallel-group clinical trial in women undergoing elective day-surgical laparoscopic gynaecological surgery, with a standardised general anaesthesia regimen that included rocuronium...
December 7, 2017: Anaesthesia
https://www.readbyqxmd.com/read/29212484/clinical-features-of-visual-disturbances-secondary-to-isolated-sphenoid-sinus-inflammatory-diseases
#16
Lanlan Chen, Libin Jiang, Bentao Yang, Prem S Subramanian
BACKGROUND: Visual disturbances associated with isolated sphenoid sinus inflammatory diseases (ISSIDs) are easily misdiagnosed due to the nonspecific symptoms and undetectable anatomical location. The main objective of this retrospective case series is to investigate the clinical features of visual disturbances secondary to ISSIDs. METHODS: Clinical data of 23 patients with unilateral or bilateral visual disturbances secondary to ISSIDs from 2004 to 2014 with new symptoms were collected...
December 6, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/29210853/double-vision-when-a-dying-patient-s-family-member-is-also-a-nurse
#17
Anita Tesh, Donald D Kautz
No abstract text is available yet for this article.
December 2017: Nursing Management
https://www.readbyqxmd.com/read/29210828/predicting-short-term-subjective-vision-performance-of-contact-lenses-used-in-myopia-control
#18
Jennie Diec, Daniel Tilia, Varghese Thomas, Ravi C Bakaraju
OBJECTIVE: To investigate whether initial assessment of contact lenses prescribed for myopia control (MC) predicts short-term visual performance. METHOD: Retrospective analysis of 43 participants in a double-masked, randomized, cross-over trial wearing at least one lens: single-vision (SV) lens (1-DAY ACUVUE MOIST) or MC lenses (MiSight or Proclear Multifocal-Distance +2.00D). Participants completed questionnaires at the fitting visit, a take-home questionnaire (THQ) 3 days after fitting and finally at the assessment visit (≥5 days after fitting)...
November 28, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29208833/sutureless-27-gauge-needle-assisted-transconjunctival-intrascleral-intraocular-lens-fixation-initial-experience
#19
Aditya Shrikant Kelkar, Rajesh Fogla, Jai Kelkar, Akshay Anil Kothari, Hetal Mehta, Winfried Amoaku
PURPOSE: The purpose of the study was to report our initial experience with the transconjunctival Intrascleral Intraocular Lens (SFIOL) fixation with modified Yamane's double-needle technique and flanged haptics. METHODS: This was a prospective interventional study that enrolled 31 consecutive patients undergoing SFIOL with the modified Yamane's technique. All patients underwent comprehensive evaluation including uncorrected and best-corrected vision, intraocular pressure, ultrasound biomicroscopy, endothelial cell density, and macular thickness using optical coherence tomography (OCT)...
December 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29207283/division-of-labor-as-an-emergent-phenomenon-of-social-coordination-the-example-of-playing-doubles-pong
#20
Niek H Benerink, Frank T J M Zaal, Remy Casanova, Nathalie Bonnardel, Reinoud J Bootsma
In many daily situations, our behavior is coordinated with that of others. This study investigated this coordination in a doubles-pong task. In this task, two participants each controlled a paddle that could move laterally near the bottom of a shared computer screen. With their paddles, the players needed to block balls that moved down under an angle. In doing so, they needed to make sure that their paddles did not collide. A successful interception led to the ball bouncing back upwards. Importantly, all communication other than through vision of the shared screen was excluded...
December 2, 2017: Human Movement Science
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