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Convergence insufficiency

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https://www.readbyqxmd.com/read/28993094/characterization-of-diplopia-in-non-demented-patients-with-parkinson-s-disease
#1
Katharina A Schindlbeck, Shideh Schönfeld, Wanda Naumann, David J Friedrich, André Maier, Charlotte Rewitzer, Fabian Klostermann, Frank Marzinzik
INTRODUCTION: Although diplopia is considered a frequent symptom of Parkinson's disease (PD), little is known about its clinical manifestation, associated mechanisms and treatment. Here we characterized binocular diplopia in non-demented PD patients in an interdisciplinary setting. METHODS: PD patients were prospectively screened for diplopia, visual hallucinations, problems with spatial perception, contrast sensitivity, presence of blurred vision, and history of ophthalmological comorbidities via interview...
September 29, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28985221/long-term-outcomes-of-augmented-unilateral-recess-resect-procedure-in-children-with-intermittent-exotropia
#2
Jin-Soo Kim, Hee Kyung Yang, Jeong-Min Hwang
BACKGROUND: Initial overcorrection after exotropia surgery has been considered as a desirable result. Recently, there had been several studies that reported better surgical results of augmented bilateral lateral rectus muscle recession procedure over the conventional procedure. OBJECTIVES: To compare the long-term results of augmented unilateral lateral rectus recession-medial rectus resection procedure (RR) with the original surgery in exotropic children. DATA EXTRACTION: A retrospective cohort study was performed on a total of 121 children with exotropia who underwent RR from February 2005 to December 2012 and were followed-up for at least 24 months...
2017: PloS One
https://www.readbyqxmd.com/read/28977122/-comprehensive-primary-care-and-segmented-health-systems-in-south-america
#3
Ligia Giovanella, Patty Fidelis de Almeida
The article analyzes recent reforms in primary health care in the South American countries, discussing the scope and challenges for establishing comprehensive primary health care in the region's health systems. The data sources were case studies conducted in 12 countries, and the analytical lines were the strategic components in the design and implementation of primary health care: national policy approaches, characteristics of financing, organization and provision, and the workforce in primary health care...
October 2, 2017: Cadernos de Saúde Pública
https://www.readbyqxmd.com/read/28945646/efficacy-of-toric-contact-lenses-in-fitting-and-patient-reported-outcomes-in-contact-lens-wearers
#4
Stephanie M Cox, David A Berntsen, Katherine M Bickle, Jessica H Mathew, Daniel R Powell, B Kim Little, Kathrine Osborn Lorenz, Jason J Nichols
OBJECTIVES: To assess whether patient-reported measures are improved with soft toric contact lenses (TCLs) compared with soft spherical contact lenses (SCLs) and whether clinical time needed to fit TCL is greater than SCL. METHODS: Habitual contact lens wearers with vertexed spherical refraction +4.00 to +0.25 D or -0.50 to -9.00 D and cylinder -0.75 to -1.75 DC were randomly assigned to be binocularly fitted into a TCL or SCL, and masked to treatment assignment...
September 21, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28912110/the-genetics-of-congenitally-small-brains
#5
REVIEW
Sarah Duerinckx, Marc Abramowicz
Primary microcephaly (PM) refers to a congenitally small brain, resulting from insufficient prenatal production of neurons, and serves as a model disease for brain volumic development. Known PM genes delineate several cellular pathways, among which the centriole duplication pathway, which provide interesting clues about the cellular mechanisms involved. The general interest of the genetic dissection of PM is illustrated by the convergence of Zika virus infection and PM gene mutations on congenital microcephaly, with CENPJ/CPAP emerging as a key target...
September 11, 2017: Seminars in Cell & Developmental Biology
https://www.readbyqxmd.com/read/28890076/convergence-insufficiency-symptom-survey-scores-for-required-reading-versus-leisure-reading-in-school-age-children
#6
Tiana Y Clark, Robert A Clark
PURPOSE: To compare Convergence Insufficiency Symptom Survey scores for required reading for school versus scores for leisure reading. METHODS: At a single private practice, we surveyed 100 children with normal binocular vision using modified survey questions specifying either required reading or leisure reading as the near visual activity. Average total symptom scores and subscores for questions about discomfort, fatigue, impaired vision, and cognitive performance were analyzed using t tests; responses to individual questions were analyzed using Mann-Whitney U tests...
September 7, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28882500/convergence-insufficiency-relationship-to-reading-and-academic-performance
#7
Paul H Phillips
Patients with convergence insufficiency (CI) are often symptomatic during activities that require near fixation, such as reading. Indeed, CI has been associated with reading impairment and poor academic performance. However, these associations do not prove a causal relationship between these conditions. The current evidence regarding the relationship between CI and its treatment, reading ability, and academic performance is discussed.
September 4, 2017: Journal of AAPOS: the Official Publication of the American Association for Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28866427/influence-of-neck-torsion-on-near-point-convergence-in-subjects-with-idiopathic-neck-pain
#8
Phoebe Giffard, Laura Daly, Julia Treleaven
BACKGROUND: People with neck pain (NP) experience sensorimotor and oculomotor deficits thought to be due to abnormal cervical afferent input. Convergence insufficiency (CI) measured by near point convergence (NPC) may be a feature in NP and neck torsion might help to differentiate a cervical cause. OBJECTIVES: This study aimed to investigate repeatability and reliability of NPC in neutral and torsion and compare between idiopathic NP and controls along with correlation to the Convergence Insufficiency Symptom Survey (CISS)...
August 26, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28862105/prevalence-of-convergence-insufficiency-type-symptomatology-in-parkinson-s-disease
#9
Caroline Law, Estefania Chriqui, Marie-Jeanne Kergoat, Bernard-Simon Leclerc, Michel Panisset, Elizabeth L Irving, Ronald B Postuma, Sylvain Chouinard, Hélène Kergoat
BACKGROUND: Individuals with Parkinson's disease (PD) often present with visual symptoms (e.g., difficulty in reading, double vision) that can also be found in convergence insufficiency (CI). Our objective was to estimate the prevalence of CI-type visual symptomatology in individuals with PD, in comparison with controls. METHODS: Participants ≥50 years with (n=300) and without (n=300) PD were recruited. They were administered the Convergence Insufficiency Symptom Survey (CISS-15) over the phone...
September 2017: Canadian Journal of Neurological Sciences. le Journal Canadien des Sciences Neurologiques
https://www.readbyqxmd.com/read/28833655/validity-and-reliability-of-the-cohip-sf-in-australian-children-with-orofacial-cleft
#10
Caitlin Mary Agnew, Lyndie Foster Page, Sally Hibbert
AIM: To measure the validity and reliability of the Child Oral Health Impact Profile-Short Form (COHIP-SF) in Australian children with orofacial cleft (OFC) and to evaluate the need for a proxy report. DESIGN: Children with OFC and their proxy completed a COHIP-SF questionnaire. Items were divided into oral health, functional and socio-emotional subscales, and scores on all subscales were compared between and within groups. RESULTS: A total of 222 children (average age 11...
November 2017: International Journal of Paediatric Dentistry
https://www.readbyqxmd.com/read/28820926/treatment-of-convergence-insufficiency
#11
Marlet G Bazemore, Norman B Medow, Nils Mungan, Leonard B Nelson
No abstract text is available yet for this article.
July 1, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28812602/prenatal-development-supports-a-single-origin-of-laryngeal-echolocation-in-bats
#12
Zhe Wang, Tengteng Zhu, Huiling Xue, Na Fang, Junpeng Zhang, Libiao Zhang, Jian Pang, Emma C Teeling, Shuyi Zhang
Bat laryngeal echolocation is considered as one of the most complex and diverse modes of auditory sensory perception in animals and its evolutionary history has been the cause of many scientific controversies in the past two decades. To date, the majority of scientific evidence supports that bats (Chiroptera) are divided into two subordinal groups: Yinpterochiroptera, containing the laryngeal echolocating superfamily Rhinolophidae as sister taxa to the non-laryngeal echolocating family Pteropodidae; and Yangochiroptera, containing all other laryngeal echolocating lineages...
January 9, 2017: Nature ecology & evolution
https://www.readbyqxmd.com/read/28780589/development-of-brain-ventricular-system
#13
REVIEW
Vladimir Korzh
The brain ventricular system (BVS) consists of brain ventricles and channels connecting ventricles filled with cerebrospinal fluid (CSF). The disturbance of CSF flow has been linked to neurodegenerative disease including hydrocephalus, which manifests itself as an abnormal expansion of BVS. This relatively common developmental disorder has been observed in human and domesticated animals and linked to functional deficiency of various cells lineages facing BVS, including the choroid plexus or ependymal cells that generate CSF or the ciliated cells that cilia beating generates CSF flow...
August 5, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28746323/ocular-morbidity-among-children-of-government-schools-of-kathmandu-valley-a-follow-up-study
#14
R K Shrestha, G S Shrestha
INTRODUCTION: Ocular and vision defects are common among school going children. Vision disorders, especially refractive errors are the main disabilities of children and the leading cause of handicapping conditions of childhood. The present study was conducted to find out ocular morbidity among students of government schools of Kathmandu valley. METHODS: In the descriptive and cross-sectional study, 2412 students, comprising of 1114 (46.2%) males and 1298 (53.8%) females were enrolled in to the study from the five government schools of Kathmandu valley from 2012 to 2013...
April 2017: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28713269/the-emerging-role-for-zinc-in-depression-and-psychosis
#15
REVIEW
Matthew A Petrilli, Thorsten M Kranz, Karine Kleinhaus, Peter Joe, Mara Getz, Porsha Johnson, Moses V Chao, Dolores Malaspina
Zinc participation is essential for all physiological systems, including neural functioning, where it participates in a myriad of cellular processes. Converging clinical, molecular, and genetic discoveries illuminate key roles for zinc homeostasis in association with clinical depression and psychosis which are not yet well appreciated at the clinical interface. Intracellular deficiency may arise from low circulating zinc levels due to dietary insufficiency, or impaired absorption from aging or medical conditions, including alcoholism...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28661673/scalable-electron-correlation-methods-3-efficient-and-accurate-parallel-local-coupled-cluster-with-pair-natural-orbitals-pno-lccsd
#16
Max Schwilk, Qianli Ma, Christoph Köppl, Hans-Joachim Werner
A well-parallelized local singles and doubles coupled-cluster (LCCSD) method using pair natural virtual orbitals (PNOs) is presented. The PNOs are constructed using large domains of projected atomic orbitals (PAOs) and orbital specific virtual orbitals (OSVs). We introduce a hierarchy of close, weak, and distant pairs, based on pair energies evaluated by local Møller-Plesset perturbation theory (LMP2). In contrast to most previous implementations of LCCSD methods, the close and weak pairs are not approximated by LMP2 but treated by higher-order methods...
July 19, 2017: Journal of Chemical Theory and Computation
https://www.readbyqxmd.com/read/28643716/prevalence-of-ocular-morbidity-in-school-going-children-in-west-uttar-pradesh
#17
MULTICENTER STUDY
Veer Singh, K P S Malik, V K Malik, Kirti Jain
AIM OF THE STUDY: This study aims to evaluate the prevalence and to make a comparison between the ocular morbidity pattern in school going children of urban and rural areas of West Uttar Pradesh. MATERIALS AND METHODS: A school-based cross-sectional study design was adopted to examine children aged 5-15 years in randomly selected urban and rural schools of West Uttar Pradesh from June 2012 to August 2014. An optometrist did the vision and refraction, and a detailed ophthalmic examination was done by an ophthalmologist...
June 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28630229/observing-clonal-dynamics-across-spatiotemporal-axes-a-prelude-to-quantitative-fitness-models-for-cancer
#18
Andrew W McPherson, Fong Chun Chan, Sohrab P Shah
The ability to accurately model evolutionary dynamics in cancer would allow for prediction of progression and response to therapy. As a prelude to quantitative understanding of evolutionary dynamics, researchers must gather observations of in vivo tumor evolution. High-throughput genome sequencing now provides the means to profile the mutational content of evolving tumor clones from patient biopsies. Together with the development of models of tumor evolution, reconstructing evolutionary histories of individual tumors generates hypotheses about the dynamics of evolution that produced the observed clones...
June 19, 2017: Cold Spring Harbor Perspectives in Medicine
https://www.readbyqxmd.com/read/28609417/visually-evoked-potential-markers-of-concussion-history-in-patients-with-convergence-insufficiency
#19
Dmitri Poltavski, Paul Lederer, Laurie Kopko Cox
PURPOSE: We investigated whether differences in the pattern visual evoked potentials exist between patients with convergence insufficiency and those with convergence insufficiency and a history of concussion using stimuli designed to differentiate between magnocellular (transient) and parvocellular (sustained) neural pathways. METHODS: Sustained stimuli included 2-rev/s, 85% contrast checkerboard patterns of 1- and 2-degree check sizes, whereas transient stimuli comprised 4-rev/s, 10% contrast vertical sinusoidal gratings with column width of 0...
July 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28599912/efficacy-of-vision-therapy-in-children-with-learning-disability-and-associated-binocular-vision-anomalies
#20
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
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