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https://www.readbyqxmd.com/read/28332896/the-distribution-of-macular-thickness-and-its-determinants-in-a-healthy-population
#1
Hassan Hashemi, Mehdi Khabazkhoob, AbbasAli Yekta, Mohammad Hassan Emamian, Payam Nabovati, Akbar Fotouhi
PURPOSE: To determine the distribution of macular thickness in a healthy Iranian population aged 45-69 years and its association with certain determinants. METHODS: All participants underwent optometric examinations including measurement of uncorrected and corrected visual acuity, objective refraction by retinoscopy, and subjective refraction. Subsequently, all participants underwent slit-lamp biomicroscopy followed by fundus examination through direct and indirect ophthalmoscopy, and optical coherence tomography (OCT) imaging under pupil dilation...
March 23, 2017: Ophthalmic Epidemiology
https://www.readbyqxmd.com/read/28328125/two-patients-with-the-heterozygous-r189h-mutation-in-acta2-and-complex-congenital-heart-defects-expands-the-cardiac-phenotype-of-multisystemic-smooth-muscle-dysfunction-syndrome
#2
Thushiha Logeswaran, Christoph Friedburg, Karoline Hofmann, Hakan Akintuerk, Saskia Biskup, Michael Graef, Ali Rad, Axel Weber, Bernd A Neubauer, Dietmar Schranz, Patrice Bouvagnet, Birgit Lorenz, Andreas Hahn
De novo heterozygous mutations changing R179 to histidine, leucine, or cysteine in the ACTA2 gene are associated with Multisystemic Smooth Muscle Dysfunction Syndrome (MSMDS). Characteristic hallmarks of this condition, caused only by these specific ACTA2 mutations, are congenital mydriasis (mid-dilated, non-reactive pupils), a large persistent ductus arteriosus (PDA), aortic aneurysms evolving during childhood, and cerebrovascular anomalies. We describe two patients, a 3-day-old newborn and a 26-year-old woman, with this unique mutation in association with a huge PDA and an aorto-pulmonary window...
April 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28326023/infrared-video-pupillography-coupled-with-smart-phone-led-for-measurement-of-pupillary-light-reflex
#3
Lily Yu-Li Chang, Jason Turuwhenua, Tian Yuan Qu, Joanna M Black, Monica L Acosta
Clinical assessment of pupil appearance and pupillary light reflex (PLR) may inform us the integrity of the autonomic nervous system (ANS). Current clinical pupil assessment is limited to qualitative examination, and relies on clinical judgment. Infrared (IR) video pupillography combined with image processing software offer the possibility of recording quantitative parameters. In this study we describe an IR video pupillography set-up intended for human and animal testing. As part of the validation, resting pupil diameter was measured in human subjects using the NeurOptics(™) (Irvine, CA, USA) pupillometer, to compare against that measured by our IR video pupillography set-up, and PLR was assessed in guinea pigs...
2017: Frontiers in Integrative Neuroscience
https://www.readbyqxmd.com/read/28303743/incremental-comprehension-of-pitch-relationships-in-written-music-evidence-from-eye-movements
#4
Lauren V Hadley, Patrick Sturt, Tuomas Eerola, Martin J Pickering
To investigate how proficient pianists comprehend pitch relationships in written music when they first encounter it we conducted two experiments in which proficient pianists' eyes were tracked while they read and played single-line melodies. In Experiment 1, participants played at their own speed; in Experiment 2 they played with an external metronome. The melodies were either congruent or anomalous, with the anomaly involving one bar being shifted in pitch to alter the implied harmonic structure (e.g., non-resolution of a dominant)...
March 17, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28302533/strabismus-measurements-in-adults-before-and-after-pupil-dilation
#5
Sean S Rivera, Michael S Lee, Scott Lunos, Jill S Anderson, Erick D Bothun
PURPOSE: To determine the effect of dilating drops on strabismus measurements in adults. DESIGN: Prospective cohort study METHODS: Patients age 18 and older with strabismus underwent a standard evaluation of ocular motility, stereopsis, and ocular alignment with alternate prism cover test by a certified orthoptist. After pupil dilation with 2.5% phenylephrine and 1% tropicamide, ocular alignment was re-measured in primary gaze at 6 meters, at 1/3 meter and at 1/3 meter with a +3...
March 13, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28300747/pathophysiology-of-dilatation-of-pupils-due-to-scorpion-and-snake-envenomation-and-its-therapeutic-value-clinical-observations
#6
Himmatrao S Bawaskar, Parag H Bawaskar, Pramodini H Bawaskar
Dilated nonreacting pupils are routinely taken as a sign of irreversible brain damage. Alpha-receptor stimulation (scorpion sting) and presynaptic acetylcholine receptor blocker (krait bite) may result in dilation of pupils without involvement of the brain. This study was aimed to clinically evaluate the response of pupils in scorpion sting and krait bite. Victims of scorpion sting and krait bite were chosen from Raigad district. Scorpion sting and krait bite cases were admitted to hospital and were clinically evaluated in detail regarding neurological manifestations...
January 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28298871/a-case-of-unilateral-non-dilating-small-pupil
#7
Pratik Yogesh Doshi, Pradnya Jayant Kamat, Ugam P S Usgaonkar
No abstract text is available yet for this article.
January 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28298858/mobile-unit-for-retinopathy-of-prematurity-screening-and-management-at-urban-neonatal-intensive-care-units-outcomes-and-impact-assessment
#8
Jai Kelkar, Supriya Agashe, Aditya Kelkar, Rajiv Khandekar
PURPOSE: To study the outcomes and impact of a mobile unit for retinopathy of prematurity (ROP) screening and management at urban Neonatal Intensive Care Units (NICUs). STUDY DESIGN: Public health intervention study. METHODS: This study was conducted in 2012. Staff of a mobile unit assessed all infants aged 32 weeks or less and/or weight 1250 g or less admitted in five NICUs between 2009 and 2011. An ophthalmologist performed bedside ROP screening through dilated pupils using indirect ophthalmoscopy...
January 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28297825/-the-clinical-application-of-retractorless-surgery-in-patients-with-hypertensive-basal-ganglia-hemorrhage
#9
Z H Zhao, X M Zhong, Y Q Wang, J G Yang, Y Cai, Z H Fei, L Zhang
Objective: To discuss the clinical feasibility and practical application of retractorless surgical for patients with hypertensive basal ganglia hemorrhage. Methods: A total of 84 patients underwentretractorless surgery in The First People's Hospital of Huzhou from Jun 2014 to Jun 2016 were retrospectively reviewed.There were 53 male and 31 female of the 84 patients. Their mean age were 58.7 years with range: 29-74 years.Glasgow coma scale score(GCS) at admissionwereas follow: GCS 4-5 points 10 cases(including 3 cases companied dilated pupils), GCS 6-8 points 25 cases, GCS 9-12 points 32 cases, and GCS 13-14 points 17 cases...
March 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28293982/visual-versus-auditory-simon-effect-a-behavioural-and-physiological-investigation
#10
Stefania D'Ascenzo, Luisa Lugli, Giulia Baroni, Roberto Guidotti, Sandro Rubichi, Cristina Iani, Roberto Nicoletti
The present study investigated whether the visual and auditory Simon effects could be accounted for by the same mechanism. In a single experiment we performed a detailed comparison of the visual and the auditory Simon effects arising in behavioural responses and in pupil dilation, a psychophysiological measure considered as a marker of the cognitive effort induced by conflict processing. To address our question, we performed sequential and distributional analyses on both reaction times and pupil dilation. Results confirmed that the mechanisms underlying the visual and auditory Simon effects are functionally equivalent in terms of the interaction between unconditional and conditional response processes...
March 15, 2017: Quarterly Journal of Experimental Psychology: QJEP
https://www.readbyqxmd.com/read/28288603/a-cute-angle-closure-attack-after-an-intravitreal-bevacizumab-injection-for-branch-retinal-vein-occlusion-a-case-report
#11
Seongyong Jeong, Min Sagong, Woohyok Chang
BACKGROUND: Intravitreal injection is widely used to treat retinal vein occlusion, and acute angle closure (AAC) is an exceptional complication of intravitreal injection. The authors report a case of AAC that occurred immediately after administering intravitreal bevacizumab to treat branch retinal vein occlusion (BRVO). CASE PRESENTATION: A 65-year-old woman was referred to the retina clinic of a tertiary referral center for the treatment of macular edema secondary to BRVO...
March 14, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28285242/psychophysiological-correlates-of-emotion-regulation-training-in-adolescent-anxiety-evidence-from-the-novel-pier-task
#12
Nele A J De Witte, Stefan Sütterlin, Caroline Braet, Sven C Mueller
BACKGROUND: Anxiety disorders are the leading cause of mental illness in adolescence. While anxious adolescents show impairments in emotion processing and deficits in emotion regulation, few studies have attempted to improve emotion regulation within these populations. METHOD: This study used a multi-method design to test a newly developed emotion regulation training aimed at improving insight into emotions and instructing cognitive reappraisal. The efficacy of cognitive reappraisal was investigated in 27 clinically anxious youth (Age: M=12...
March 7, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28283378/the-effects-of-synthetic-cannabinoid-ur-144-on-the-human-body-a-review-of-39-cases
#13
Piotr Adamowicz, Joanna Gieroń, Dominika Gil, Wojciech Lechowicz, Agnieszka Skulska, Bogdan Tokarczyk
UR-144 [(1-pentyl-1H-indol-3-yl)(2,2,3,3-tetramethylcyclopropyl)methanone] is a synthetic cannabinoid, which has been detected in many 'legal highs', seized from the global drug market since the beginning of 2012. It has gained popularity as a 'legal' alternative to classic cannabis in countries where it was not controlled. Despite the widespread distribution of this substance, the data on its effects on the human body are scarce. Therefore, this paper describes the results of analysis and observed effects in 39 cases in which UR-144 was determined in blood...
March 7, 2017: Forensic Science International
https://www.readbyqxmd.com/read/28275978/infrared-pupillometry-helps-to-detect-and-predict-delirium-in-the-post-anesthesia-care-unit
#14
Eric Yang, Matthias Kreuzer, September Hesse, Paran Davari, Simon C Lee, Paul S García
This study evaluates the capability of pupillary parameters to detect and predict delirium in the post-anesthesia care unit (PACU-D) following general anesthesia. PACU-D may complicate and prolong the patient's postoperative course, consequently increasing hospital costs. After institutional approval, 47 patients undergoing surgical interventions with general anesthesia were included in the study. We measured the pupillary reflexes at signing of informed consent, during surgery 20 min after intubation and when the primary inhaled anesthetic was turned off, and 15 and 45 min after PACU admittance and upon discharge from the PACU...
March 8, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28271634/choroideremia-melanopsin-mediated-postillumination-pupil-relaxation-is-abnormally-slow
#15
Shakoor Ba-Ali, Søren Kirchhoff Christensen, Birgit Sander, Thomas Rosenberg, Michael Larsen, Henrik Lund-Andersen
PURPOSE: To investigate the rod-cone and melanopsin pupillary light response (PLR) pathways in choroideremia. METHODS: Eight patients with choroideremia and 18 healthy age-matched controls underwent chromatic pupillometry by applying blue (463 nm) and red light (643 nm) at 100 lux intensity to the right eye while recording pupil diameters. Absolute baseline pupil size (mm), normalized maximal pupil constriction and the early and late postillumination pupillary dilation, from 0 to 10 seconds and 10 to 30 seconds after the end of illumination, respectively, were determined...
March 8, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28265747/the-effect-of-allergic-rhinitis-with-positive-skin-prick-test-on-choroidal-thickness
#16
Alper Yenigun, Ahmet Elbay, Remzi Dogan, Orhan Ozturan, Mehmet Hakan Ozdemir
Allergic rhinitis is an inflammatory disease that develops through immunoglobulin E in the rhino-ocular mucosa due to allergy. The main symptoms are runny nose, nasal congestion, sneezing and itchy nose. This study was designed to investigate the effect of allergic rhinitis on choroidal thickness. This study was planned as a case-control study. This study performed in a tertiary referral center. The study included 61 patients with allergic rhinitis and 35 healthy subjects. Patients in both groups underwent skin prick test...
March 6, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28262942/young-children-want-to-see-others-get-the-help-they-need
#17
Robert Hepach, Amrisha Vaish, Tobias Grossmann, Michael Tomasello
Children's instrumental helping has sometimes been interpreted as a desire to complete action sequences or to restore the physical order of things. Two-year-old children (n = 51) selectively retrieved for an adult the object he needed rather than one he did not (but which equally served to restore the previous order of things), and those with greater internal arousal (i.e., pupil dilation) were faster to help. In a second experiment (n = 64), children's arousal increased when they witnessed an adult respond inappropriately to another adult's need...
November 2016: Child Development
https://www.readbyqxmd.com/read/28262507/influence-of-refractive-error-on-pupillary-dynamics-in-the-normal-and-mild-traumatic-brain-injury-mtbi-populations
#18
James Q Truong, Nabin R Joshi, Kenneth J Ciuffreda
PURPOSE: There have been several studies investigating static, baseline pupil diameter in visually-normal individuals across refractive error. However, none have assessed the dynamic pupillary light reflex (PLR). In the present study, both static and dynamic pupillary parameters of the PLR were assessed in both the visually-normal (VN) and the mild traumatic brain injury (mTBI) populations and compared as a function of refractive error. METHODS: The VN population comprised 40 adults (22-56 years of age), while the mTBI population comprised 32 adults (21-60 years of age) over a range of refractive errors (-9...
March 2, 2017: Journal of Optometry
https://www.readbyqxmd.com/read/28256514/pupil-linked-arousal-is-driven-by-decision-uncertainty-and-alters-serial-choice-bias
#19
Anne E Urai, Anke Braun, Tobias H Donner
While judging their sensory environments, decision-makers seem to use the uncertainty about their choices to guide adjustments of their subsequent behaviour. One possible source of these behavioural adjustments is arousal: decision uncertainty might drive the brain's arousal systems, which control global brain state and might thereby shape subsequent decision-making. Here, we measure pupil diameter, a proxy for central arousal state, in human observers performing a perceptual choice task of varying difficulty...
March 3, 2017: Nature Communications
https://www.readbyqxmd.com/read/28256490/retinal-imaging-with-smartphone
#20
D S Ademola-Popoola, V A Olatunji
BACKGROUND: The use of smartphones for various purposes among health professionals is increasing, especially with the availability of different applications. On account of cost, fundus cameras are not readily available in ophthalmic practice in developing countries. Since smartphones are readily available, easy to use and portable, they may present a cheap alternative in a resource-limited economy. AIM AND OBJECTIVES: to explore the use of smartphone (Blackberry Z-10) for retinal imaging in a resource-limited economy...
March 2017: Nigerian Journal of Clinical Practice
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