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https://www.readbyqxmd.com/read/28636141/binocular-facilitation-of-cone-specific-visual-evoked-potentials-in-colour-deficiency
#1
Jeff Rabin, Andrew Kryder, Dan Lam
BACKGROUND: Neural compensatory mechanisms have been proposed, which preserve the binocular visual field in glaucoma, as well as cognition in Alzheimer's disease and motor function in Parkinson's disease. It is conceivable that comparable mechanisms operate to preserve function in congenital and/or dystrophic disease. In hereditary colour vision deficiency (CVD), we observed significant facilitation in the amplitude of the binocular cone-specific visual evoked potential (VEP) compared to the monocular amplitude for the cone type corresponding to the CVD...
June 21, 2017: Clinical & Experimental Optometry: Journal of the Australian Optometrical Association
https://www.readbyqxmd.com/read/28633028/visual-perception-neural-networks-for-stereopsis
#2
Jenny C A Read, Bruce G Cumming
How does our brain use differences between the images in our two eyes, binocular disparities, to generate depth perception? New work shows that a type of neural network trained on natural binocular images can learn parameters that match key properties of visual cortex. Most information is conveyed by cells which sense differences between the two eyes' images.
June 19, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28628952/seeking-comfort-in-an-uncomfortable-chair
#3
Elena Molinari
The author explores the concept of comfort in relation to the setting. The concept of comfort, an unusual word in the psychoanalytic lexicon, describes the intuitive and complex experience of patient and analyst being together in the analytic office. The couch and the chair are not the only tools of the setting, but they are potential instruments with which to study the therapeutic process, both in high-frequency therapy and in lower-frequency treatments. To describe the transformations that an alternative experience of comfort can promote, the author looks at the intersection of this concept with the body-mind relationship and with the Bionian concept of binocular vision...
April 2017: Psychoanalytic Quarterly
https://www.readbyqxmd.com/read/28625338/acute-diplopia-in-the-pediatric-emergency-department-a-cohort-multicenter-italian-study
#4
Umberto Raucci, Pasquale Parisi, Nicola Vanacore, Francesco La Penna, Valentina Ferro, Lucia Calistri, Claudia Bondone, Fabio Midulla, Agnese Suppiej, Raffaele Falsaperla, Duccio Maria Cordelli, Antonella Palmieri, Alberto Verrotti, Sabrina Becciani, Sonia Aguzzi, Mario Mastrangelo, Federica Pelizza, Filippo Greco, Giulia Carbonari, Ramona Tallone, Gabriella Bottone, Italo Trenta, Stefano Masi, Maria Pia Villa, Antonino Reale
BACKGROUND: Acute diplopia (AD) is an uncommon and distressing symptom of numerous ocular and neurological conditions, with potentially serious sequelaes. No data are present in pediatrics on the presentation and management of AD. AIM: This study investigated characteristics, etiology and health care utilization of the pediatric population with AD accessed to pediatric Emergency Departments (ED), trying to identify "red flags" associated with potentially life-threatening (LT) conditions...
June 3, 2017: European Journal of Paediatric Neurology: EJPN
https://www.readbyqxmd.com/read/28623544/clinical-feature-and-waveform-in-infantile-nystagmus-syndrome-in-children-with-frmd7-gene-mutations
#5
Dayong Bai, Wei Shi, Zhan Qi, Wei Li, Aihua Wei, Yanhui Cui, Cheng Li, Li Li
Infant nystagmus sydrome presents as involuntary eye movement disorder and can affect seriously ocular function. We performed a retrospective study of clinical data and FRMD7 genetic test results in 12 cases of infantile nystagmus syndrome to correlate waveform, stereopsis, and visual acuity. The patients (age 6.40±2.67 years) had FRMD7 mutations as follows: missense in eight cases, shear in two cases, frameshift in one case, and non-frameshift in one case. Horizontal jerk waveform was observed in six cases, versus horizontal pendulum in five cases and dual jerk in one case...
June 14, 2017: Science China. Life Sciences
https://www.readbyqxmd.com/read/28621462/evidence-for-convergent-evolution-of-a-neocortex-like-structure-in-a-late-permian-therapsid
#6
Michael Laaß, Anders Kaestner
The special sensory, motor, and cognitive capabilities of mammals mainly depend upon the neocortex, which is the six-layered cover of the mammalian forebrain. The origin of the neocortex is still controversial and the current view is that larger brains with neocortex first evolved in late Triassic Mammaliaformes. Here, we report the earliest evidence of a structure analogous to the mammalian neocortex in a forerunner of mammals, the fossorial anomodont Kawingasaurus fossilis from the late Permian of Tanzania...
June 16, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28620156/the-effect-of-lasik-surgery-on-myopic-anisometropes-sensory-eye-dominance
#7
Lixia Feng, Huimin Lin, Yao Chen, Jiafeng Wang, Yonghua Wang, Rongfeng Liao, Jiawei Zhou, Robert F Hess
Lasik is a common surgery for treating anisometropia. In this study, we asked a specific question: what's the effect of Lasik surgery on anisometropes' sensory eye dominance ? Fifteen myopic anisometropes (mean age: 23 ± 6.9 years old; 6 females) participated in our experiment. We quantitatively measured participants' sensory eye dominance before and after the Lasik surgery using a binocular phase combination paradigm. We found no significant change of sensory eye dominance within 16 weeks (measured between 8 to 96 days, for one or two repetitions) after the surgery (t(14) = -1...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617728/a-comparison-of-the-effects-of-orthokeratology-lens-medcall-lens-and-ordinary-frame-glasses-on-the-accommodative-response-in-myopic-children
#8
Xiaoxia Han, Dongjun Xu, Weizhong Ge, Zhi Wang, Xiaodong Li, Weihua Liu
OBJECTIVE: To observe and compare changes in accommodative response between myopic children wearing ordinary frame glasses (OFG), Mouldway orthokeratology lenses (M-OK), and medcall lenses (ML). METHODS: A total of 240 myopic children were divided into three groups: OFG [n=90]; M-OK [n=90]; and ML [n=60]). The diopter, accommodative lag, and binocular accommodative facility before wearing glasses (T0) and 1-year after wearing glasses (T1) were compared among the three groups...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28614556/binocular-therapy-for-childhood-amblyopia-improves-vision-without-breaking-interocular-suppression
#9
Manuela Bossi, Vijay K Tailor, Elaine J Anderson, Peter J Bex, John A Greenwood, Annegret Dahlmann-Noor, Steven C Dakin
Purpose: Amblyopia is a common developmental visual impairment characterized by a substantial difference in acuity between the two eyes. Current monocular treatments, which promote use of the affected eye by occluding or blurring the fellow eye, improve acuity, but are hindered by poor compliance. Recently developed binocular treatments can produce rapid gains in visual function, thought to be as a result of reduced interocular suppression. We set out to develop an effective home-based binocular treatment system for amblyopia that would engage high levels of compliance but that would also allow us to assess the role of suppression in children's response to binocular treatment...
June 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28606268/-clinical-observation-on-monovision-of-cataract-surgery-with-different-near-addition
#10
J Mu, Y Z Li, Q Wu, L Yan, H Chen
Objective: To observe the influence on spectacle independence, satisfaction and visual function after cataract surgery monovision with different ADD. Methods: Prospective clinical study. All patients were collected from the department of ophthalmology, Shanghai JiaoTong University Affiliated Sixth People's Hospital who were diagnosed as bilateral cataract from Oct. 2013 to Mar. 2015. This study comprised 64 cases (128 eyes). All consecutive patients scheduled to undergo bilateral cataract phacoemulsification and implantation of a monofocal AcrySof IQ IOL...
June 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28604183/treatment-of-an-internal-carotid-artery-aneurysm-with-a-flow-diverter-through-a-double-lumen-balloon-catheter
#11
José M Amorim, Santiago Rosati, Ronit Agid, Vítor Mendes Pereira, Timo Krings
Background Double lumen balloon catheters (DLBCs) are currently used in the treatment of intracranial aneurysms, especially when involving balloon or stent-assisted coiling. The existing DLBCs allow the delivery of self-expandable stents but do not offer the possibility to deploy flow-diverters. Despite the increasing use and success of flow-diverters, there have been numerous reports of procedural complications such as early in-stent thrombosis or delayed distal embolization. It seems that these complications can be avoided by correct stent positioning and adequate wall apposition, achieved either by manoeuvres with the microguidewire and/or microcatheter or by performing balloon angioplasty following an exchange guidewire manoeuvre...
June 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28603771/magnitude-precision-and-realism-of-depth-perception-in-stereoscopic-vision
#12
Paul B Hibbard, Alice E Haines, Rebecca L Hornsey
Our perception of depth is substantially enhanced by the fact that we have binocular vision. This provides us with more precise and accurate estimates of depth and an improved qualitative appreciation of the three-dimensional (3D) shapes and positions of objects. We assessed the link between these quantitative and qualitative aspects of 3D vision. Specifically, we wished to determine whether the realism of apparent depth from binocular cues is associated with the magnitude or precision of perceived depth and the degree of binocular fusion...
2017: Cognitive Research: Principles and Implications
https://www.readbyqxmd.com/read/28603662/predicting-future-self-reported-motor-vehicle-collisions-in-subjects-with-primary-open-angle-glaucoma-using-the-penalized-support-vector-machine-method
#13
Kenya Yuki, Ryo Asaoka, Sachiko Awano-Tanabe, Takeshi Ono, Daisuke Shiba, Hiroshi Murata, Kazuo Tsubota
PURPOSE: We predict the likelihood of a future motor vehicle collision (MVC) from visual function data, attitudes to driving, and past MVC history using the penalized support vector machine (pSVM) in subjects with primary open-angle glaucoma (POAG). METHODS: Patients with POAG were screened prospectively for eligibility and 185 were analyzed in this study. Self-reported MVCs of all participants were recorded for 3 years from the baseline using a survey questionnaire every 12 months...
June 2017: Translational Vision Science & Technology
https://www.readbyqxmd.com/read/28602762/different-patterns-of-changes-between-actin-dynamics-and-synaptic-density-in-the-rat-s-primary-visual-cortex-during-a-special-period-of-visual-development
#14
Mei-Qing Chen, Ai-Ling Bi, Yue-Ying Zhang, Qin Yan, Yuan-Yuan Sun, Xiu-Yan Zhang, Xian-Zhen Ma, Hong-Sheng Bi
In our previous study, we found that the normalized levels of the synaptosomal filament actin (F-actin) to monomeric global actin (G-actin) ratio in the primary visual cortex (V1) of rats was significantly lower on postnatal day (P) 45 compared with P30, however, the synaptic density in the monocular area of primary visual cortex (V1M) maintained a stable high level from P30 to P45. The mechanisms underlying the different patterned of change in synaptic density and actin rearrangements from P30 to P45 are unclear...
June 8, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28602323/bifocal-nondiffractive-intraocular-lens-for%C3%A2-enhanced-depth-of-focus-in-correcting-presbyopia-clinical-evaluation
#15
Efstathios Vounotrypidis, Raphael Diener, Christian Wertheimer, Thomas Kreutzer, Armin Wolf, Siegfried Priglinger, Wolfgang J Mayer
PURPOSE: To assess the clinical outcomes and patient satisfaction after bilateral cataract surgery with implantation of a bifocal refractive enhanced depth of focus intraocular lens (IOL) with a low near addition (add). SETTING: Department of Ophthalmology, Ludwig-Maximilians-University Munich, Munich, Germany. DESIGN: Prospective longitudinal case series. METHODS: Eyes with bilateral age-related cataract and corneal astigmatism of less than 1...
May 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28599912/efficacy-of-vision-therapy-in-children-with-learning-disability-and-associated-binocular-vision-anomalies
#16
Jameel Rizwana Hussaindeen, Prerana Shah, Krishna Kumar Ramani, Lalitha Ramanujan
PURPOSE: To report the frequency of binocular vision (BV) anomalies in children with specific learning disorders (SLD) and to assess the efficacy of vision therapy (VT) in children with a non-strabismic binocular vision anomaly (NSBVA). METHODS: The study was carried out at a centre for learning disability (LD). Comprehensive eye examination and binocular vision assessment was carried out for 94 children (mean (SD) age: 15 (2.2) years) diagnosed with specific learning disorder...
June 6, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28599911/refraction-during-incipient-presbyopia-the-aston-longitudinal-assessment-of-presbyopia-alap-study
#17
Deborah S Laughton, Amy L Sheppard, Leon N Davies
PURPOSE: To investigate non-cycloplegic changes in refractive error prior to the onset of presbyopia. METHODS: The Aston Longitudinal Assessment of Presbyopia (ALAP) study is a prospective 2.5 year longitudinal study, measuring objective refractive error using a binocular open-field WAM-5500 autorefractor at 6-month intervals in participants aged between 33 and 45 years. RESULTS: From the 58 participants recruited, 51 participants (88%) completed the final visit...
June 6, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28599035/rapid-vision-correction-by-special-operations-forces
#18
Mark E Reynolds
BACKGROUND: This report describes a rapid method of vision correction used by Special Operations Medics in multiple operational engagements. METHODS: Between 2011 and 2015, Special Operations Medics used an algorithm- driven refraction technique. A standard block of instruction was provided to the medics, along with a packaged kit. The technique was used in multiple operational engagements with host nation military and civilians. Data collected for program evaluation were later analyzed to assess the utility of the technique...
2017: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28592198/reversible-drug-induced-antiphospholipid-syndrome
#19
J Risse, M Vieira, F Beuret, N Petitpain, S Zuily, D Wahl
We report an original case of reversible antiphospholipid syndrome (APS) due to minocycline in a young male patient who experienced recurrent strokes while taking minocycline. He started minocycline therapy (50 mg twice daily) at 15 years old for acne. After three years of treatment, the patient experienced a lateral medullary syndrome. He was treated with aspirin while minocycline was continued. Eighteen months later, the patient complained about horizontal binocular diplopia. MRI revealed an infarct of the oculomotor nerve nucleus...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28588680/early-clinical-characteristics-of-bacterial-endophthalmitis-in-retinopathy-of-prematurity-after-intravitreal-bevacizumab-injection-a-case-report
#20
Jianxun Wang, Daoman Xiang
Intravitreal bevacizumab injection (IVB) is emerging as a safe and effective therapy for retinopathy of prematurity (ROP); however, follow-up investigations after IVB have indicated that endophthalmitis, a rare and devastating complication, may develop. The present study reports a case of an infant with ROP who developed endophthalmitis after IVB infection. The infant was administered with an intravitreal injection of broad-spectrum antibiotics to treat the endophthalmitis. A favorable anatomic outcome was achieved after follow-up...
June 2017: Experimental and Therapeutic Medicine
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