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https://www.readbyqxmd.com/read/29786008/an-unexpected-complication-in-bilateral-acute-iris-transillumination-cystoid-macular-edema
#1
Cigdem Altan, Berna Basarir, Cem Kesim
A 47-year-old male presented with bilateral 4 + circulating pigment in the anterior chamber, diffuse iris transillumination, dilated pupils unresponsive to light, and high intraocular pressure (IOP) levels in both eyes. Visual acuity and IOP improved bilaterally with topical steroid and antiglaucomatous therapy. In the 10th month, bilateral cystoid macular edema (CME) was developed and resolved after subtenon triamcinolone injections. CME recurred after cataract surgery in the right eye which was treated with intravitreal dexamethasone implant injection...
June 2018: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29785552/suppression-of-pupillary-unrest-by-general-anesthesia-and-propofol-sedation
#2
Matthias Behrends, Merlin D Larson, Andrew E Neice, Michael P Bokoch
The pupil undergoes irregular oscillations when exposed to light. These oscillations, known as pupillary unrest in ambient light, originate from oscillatory activity within the Edinger-Westphal nucleus in the midbrain. The midbrain and upper pons also contain nuclei known to be very sensitive to the effects of anesthetics that play a central role in maintaining wakefulness. We hypothesized that anesthetics may display similar effects on wakefulness and pupillary unrest. Repeat measurements of pupillary unrest using infrared pupillometry were performed in 16 patients undergoing general anesthesia and 8 patients undergoing propofol sedation...
May 21, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29784895/bullying-among-tunisian-middle-school-students-the-prevalence-psychosocial-associated-factors-and-perceived-involvement-of-parents-teachers-and-classmates
#3
Jihene Sahli, Menel Mellouli, Meriam El Ghardallou, Manel Limam, Mouna Gallas, Asma Ammar, Ali Mtiraoui, Thouraya Nebli Ajmi, Chekib Zedini
BACKGROUND: Bullying is a serious public health concern remarkably common among youth. Involvement in bullying can lead to deleterious effect on the emotional well-being of pupils. The aim of this study was to assess the prevalence of bullying, its psychosocial associated factors and the perceived involvement of parents, teachers, and classmates to counteract this behavior. STUDY DESIGN: A cross-sectional study. METHODS: We conducted this study in 2015 among a representative multistage sample of 1584 students enrolled in middle schools in the Region of Sousse using the revised Olweus Bully/Victim Questionnaire...
May 5, 2018: Journal of Research in Health Sciences
https://www.readbyqxmd.com/read/29783738/etracker-a-mobile-gaze-tracking-system-with-near-eye-display-based-on-a-combined-gaze-tracking-algorithm
#4
Bin Li, Hong Fu, Desheng Wen, WaiLun Lo
Eye tracking technology has become increasingly important for psychological analysis, medical diagnosis, driver assistance systems, and many other applications. Various gaze-tracking models have been established by previous researchers. However, there is currently no near-eye display system with accurate gaze-tracking performance and a convenient user experience. In this paper, we constructed a complete prototype of the mobile gaze-tracking system ' Etracker ' with a near-eye viewing device for human gaze tracking...
May 19, 2018: Sensors
https://www.readbyqxmd.com/read/29783237/-evaluation-on-changes-in-risk-of-spasm-of-accommodation-in-pupils-due-to-implementation-of-prevention-program
#5
Maryna O Starynets, Oleksandr M Ocheredko
OBJECTIVE: Introduction: Number of children with myopia increased 3-fold while those with spasm of accommodation followed a suit by 5-fold increase over last decade to some extend due to computerization. These tidings necessitate the development and implementation of primordial prevention programs. The aim was to evaluate the changes in risk of spasm of accommodation in pupils due to implementation of prevention program. PATIENTS AND METHODS: Materials and methods: Data collection was based on dynamic panel of pupils padding by first-formers over 2012-2015 and tracing up to 2017, sample size is 1115...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29781511/prevalence-and-risk-indicators-of-pain-related-temporomandibular-disorders-among-indonesian-children-and-adolescents
#6
Carolina Marpaung, Maurits K A van Selms, Frank Lobbezoo
OBJECTIVES: To assess the prevalence of pain-related temporomandibular disorders (TMDs) among Indonesian children and adolescents, and to investigate which risk indicators are associated with it. METHODS: In this cross-sectional study, 1,800 questionnaires were distributed among pupils of schools in the greater Jakarta area. This was done for 2 samples: children with ages ranging from 7 to 12 years (parental report) and adolescents aged 13-18 years (self-report)...
May 21, 2018: Community Dentistry and Oral Epidemiology
https://www.readbyqxmd.com/read/29780925/ocular-involvement-in-neurolymphomatosis
#7
Katy C Liu, Meridith A Hennessey, Chad M McCall, Alan D Proia
Purpose: To describe the ophthalmic symptoms and histopathological findings in a case of primary neurolymphomatosis (NL). Observations: A man in his 60s with a prior diagnosis of chronic inflammatory demyelinating polyneuropathy developed facial numbness, diplopia, drooling, and difficulty swallowing. Over a 3-month period, he developed total ptosis and ophthalmoplegia of the right eye with a dilated, non-reactive pupil considered secondary to cranial nerve III and VI palsies...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29779607/impact-of-snr-masker-type-and-noise-reduction-processing-on-sentence-recognition-performance-and-listening-effort-as-indicated-by-the-pupil-dilation-response
#8
Barbara Ohlenforst, Dorothea Wendt, Sophia E Kramer, Graham Naylor, Adriana A Zekveld, Thomas Lunner
Recent studies have shown that activating the noise reduction scheme in hearing aids results in a smaller peak pupil dilation (PPD), indicating reduced listening effort, at 50% and 95% correct sentence recognition with a 4-talker masker. The objective of this study was to measure the effect of the noise reduction scheme (on or off) on PPD and sentence recognition across a wide range of signal-to-noise ratios (SNRs) from +16 dB to -12 dB and two masker types (4-talker and stationary noise). Relatively low PPDs were observed at very low (-12 dB) and very high (+16 dB to +8 dB) SNRs presumably due to 'giving up' and 'easy listening', respectively...
May 6, 2018: Hearing Research
https://www.readbyqxmd.com/read/29779283/-prevalence-survey-of-dental-trauma-to-immature-permanent-teeth-in-xi-an-schoolchildren
#9
Xiao-Min Wang, Xue-Long Su, Hong Wang, Fei Liu, Ya-Ping Zhao, Qing-Yu Guo
OBJECTIVE: The prevalence rate, distribution, and reasons of immature permanent-tooth trauma in Xi'an were investigated and described, and a scientific basis was provided for the decision-making of health-administration departments. METHODS: Through cluster and simple random sampling survey, 4 013 pupils in schools from nine districts and four counties in Xi'an were sampled. All pupils and their parents were requested to complete a questionnaire. Oral examinations were conducted for children who had immature permanent teeth trauma...
April 1, 2018: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29776319/biometric-factors-associated-with-the-visual-performance-of-a-high-addition-multifocal-intraocular-lens
#10
Joaquín Fernández, Manuel Rodríguez-Vallejo, Javier Martínez, Ana Tauste, David P Piñero
Purpose/Aim: To evaluate the impact of ocular parameters on the visual performance achieved with the multifocal intraocular lens (IOL) Bi-Flex M 677MY. MATERIALS AND METHODS: 26 subjects were included in the current study. Several physiological variables were retrieved from the 3-month follow-up visit, including pupil diameter and distance from pupil center to the vertex normal of the anterior cornea (µ). These variables were also obtained in the preoperative visit. Binocular and monocular visual acuity defocus curves were measured at 1 and 3 months after surgery, respectively...
May 18, 2018: Current Eye Research
https://www.readbyqxmd.com/read/29774192/efficacy-of-the-all-in-one-therapeutic-strategy-for-severe-traumatic-brain-injury-preliminary-outcome-and-limitation
#11
Young-Soo Park, Yohei Kogeichi, Yoichi Shida, Hiroyuki Nakase
Objective: Despite recent advances in medicine, no significant improvement has been achieved in therapeutic outcomes for severe traumatic brain injury (TBI). In the treatment of severe multiple traumas, accurate judgment and prompt action corresponding to rapid pathophysiological changes are required. Therefore, we developed the "All-in-One" therapeutic strategy for severe TBI. In this report, we present the therapeutic concept and discuss its efficacy and limitations. Methods: From April 2007 to December 2015, 439 patients diagnosed as having traumatic intracranial injuries were treated at our institution...
April 2018: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29773814/melanopsin-mediated-pupil-function-is-impaired-in-parkinson-s-disease
#12
Daniel S Joyce, Beatrix Feigl, Graham Kerr, Luisa Roeder, Andrew J Zele
Parkinson's disease (PD) is characterised by non-motor symptoms including sleep and circadian disruption. Melanopsin-expressing intrinsically photosensitive Retinal Ganglion Cells (ipRGC) transmit light signals to brain areas controlling circadian rhythms and the pupil light reflex. To determine if non-motor symptoms observed in PD are linked to ipRGC dysfunction, we evaluated melanopsin and rod/cone contributions to the pupil response in medicated participants with PD (n = 17) and controls (n = 12)...
May 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29772371/decompressive-craniectomy-for-traumatic-brain-injury-the-role-of-cranioplasty-and-hydrocephalus-on-outcome
#13
Davide Nasi, Mauro Dobran, Alessandro Di Rienzo, Lucia di Somma, Maurizio Gladi, Elisa Moriconi, Massimo Scerrati, Maurizio Iacoangeli
OBJECTIVE: After severe traumatic brain injury (sTBI) associated with uncontrollable high intracranial pressure (ICP), still today the main challenge for neurosurgeons remains to identify who may obtain benefit from decompressive craniectomy (DC) and which factors after DC influence the prognosis of these patients. The aim of this paper was to identify the pre and post-operative determinants of outcome after DC. METHODS: This retrospective study included all patients undergoing DC for sTBI from 2003 to 2011...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29769452/acute-glaucoma-attack-following-microvascular-decompression-surgery-for-trigeminal-neuralgia
#14
Kenichi Amagasaki, Masami Nagayama, Saiko Watanabe, Naoyuki Shono, Hiroshi Nakaguchi
Microvascular decompression (MVD) is widely accepted as an effective surgical method to treat trigeminal neuralgia (TN), but the risks of morbidity and mortality must be considered. We experienced a case of acute angle-closure glaucoma attack following MVD for TN in an elderly patient, considered to be caused by lateral positioning during and after the surgery. A 79-year-old female underwent MVD for right TN in the left lateral decubitus position, and TN disappeared after the surgery. Postoperatively, the patient tended to maintain the left lateral decubitus position to prevent wound contact with the pillow, even after ambulation...
May 17, 2018: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29766699/%C3%B0-valuation-of-health-status-of-children-attending-primary-schools-with-different-organization-of-physical-education-lessons
#15
Oleksandra S. Kondratiuk, Maria M. Korshun, Serhii I. Garkavyi, Serhii S. Garkavyi
Background: The mandatory swimming lesson in primary schools, equipped with swimming pools, was introduced without studying of its health-saving effectiveness. Objective: The purpose of this study was to evaluate the health status of pupils studying in schools with different organization of physical education lessons. Materials and Methods: Cross-sectional study was organized in two schools with different organization of physical education lessons...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29766698/eating-behaviours-of-primary-school-pupils-from-%C3%A5-l%C3%A4-skie-malopolskie-and-opolskie-voivodeships-in-poland
#16
Anna Dolipska, Mo Majerczyk, Aleksandra Góra, Karolina Janion, Elżbieta Szczepańska
Background: Nutrition is one of the major environmental factors affecting children’s physical development and health, with nutrition mistakes made in early years of life having short- and long-term health consequences. Objective: This study has been aimed at evaluating eating behaviours of primary school pupils and determining whether there are relationships between pupils’ eating habits and their area of residence. Material and methods: The study was conducted in primary schools located in the following voivodeships (administrative units) in Poland: Śląskie, Opolskie and Małopolskie, on a total sample of 1138 pupils...
2018: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/29764890/marathon-kids-uk-study-design-and-protocol-for-a-mixed-methods-evaluation-of-a-school-based-running-programme
#17
Anna E Chalkley, Ash C Routen, Jo P Harris, Lorraine A Cale, Trish Gorely, Lauren B Sherar
INTRODUCTION: Schools are promising settings for physical activity promotion; however, they are complex and adaptive systems that can influence the quality of programme implementation. This paper presents an evaluation of a school-based running programme (Marathon Kids). The aims of this study are (1) to identify the processes by which schools implement the programme, (2) identify and explain the contextual factors affecting implementation and explications of effectiveness and (3) examine the relationship between the level of implementation and perceived outcomes...
May 14, 2018: BMJ Open
https://www.readbyqxmd.com/read/29764474/acute-blindness-as-a-presenting-sign-of-childhood-endemic-burkitt-s-lymphoma-in-cameroon-a-case-report
#18
Brice N Vofo, Gaelle V F Ngankam, Calypse A Ngwasiri, Jeannine A Atem, Leopold N Aminde
BACKGROUND: Endemic Burkitt's lymphoma is found predominantly in malaria holoendemic zones, typically in the tropical rain forest of Africa. It usually presents as an extra-nodal tumour in children and young adults with predilection for jaws and soft tissues of the abdomen. Clinical features depend on the primary tumour site, extent of the disease and histologic subtype. Acute blindness as a presentation sign is rare. CASE PRESENTATION: A 13 year old African female presented to our facility with a 3 week history of painful abdominal distention, and loss of vision of the left eye...
May 16, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29756830/inertial-movements-of-the-iris-as-the-origin-of-postsaccadic-oscillations
#19
S Bouzat, M L Freije, A L Frapiccini, G Gasaneo
Recent studies on the human eye indicate that the pupil moves inside the eyeball due to deformations of the iris. Here we show that this phenomenon can be originated by inertial forces undergone by the iris during the rotation of the eyeball. Moreover, these forces affect the iris in such a way that the pupil behaves effectively as a massive particle. To show this, we develop a model based on the Newton equation on the noninertial reference frame of the eyeball. The model allows us to reproduce and interpret several important findings of recent eye-tracking experiments on saccadic movements...
April 27, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29756297/retinal-specializations-and-visual-ecology-in-an-animal-with-an-extremely-elaborate-pupil-shape-the-little-skate-leucoraja-raja-erinacea-mitchell-1825
#20
S Terrell Jinson, Jan Liebich, Stephen L Senft, Lydia M Mäthger
Investigating retinal specializations offers insights into eye functionality. Using retinal wholemount techniques, we investigated the distribution of retinal ganglion cells in the Little skate Leucoraja erinacea by (1) dye-backfilling into the optic nerve prior to retinal wholemounting; (2) Nissl-staining of retinal wholemounts. Retinas were examined for regional specializations (higher numbers) of ganglion cells that would indicate higher visual acuity in those areas. Total ganglion cell number were low compared to other elasmobranchs (backfilled: average 49,713 total ganglion cells, average peak cell density 1,315 ganglion cells mm-2 ; Nissl-stained: average 47,791 total ganglion cells, average peak cell density 1,319 ganglion cells mm-2 )...
May 14, 2018: Journal of Comparative Neurology
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