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https://www.readbyqxmd.com/read/29468215/descemet-membrane-endothelial-keratoplasty-for-corneal-decompensation-due-to-iridoschisis
#1
Miles F Greenwald, Philip I Niles, A Tim Johnson, Jesse M Vislisel, Mark A Greiner
Purpose: To report a case of bilateral iridoschisis with cataracts and corneal decompensation in a patient who underwent cataract extraction and superficial iridectomy followed by Descemet membrane endothelial keratoplasty (DMEK). Observations: A 58-year-old man with previously diagnosed iridoschisis, cataracts, and diabetes mellitus experienced progressive vision loss bilaterally due to corneal decompensation. Slit lamp examination revealed iridoschisis with iris fibrils contacting the corneal endothelium, stromal edema, and mild guttate changes bilaterally...
March 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29467703/the-effect-of-eye-contact-is-contingent-on-visual-awareness
#2
Shan Xu, Shen Zhang, Haiyan Geng
The present study explored how eye contact at different levels of visual awareness influences gaze-induced joint attention. We adopted a spatial-cueing paradigm, in which an averted gaze was used as an uninformative central cue for a joint-attention task. Prior to the onset of the averted-gaze cue, either supraliminal (Experiment 1) or subliminal (Experiment 2) eye contact was presented. The results revealed a larger subsequent gaze-cueing effect following supraliminal eye contact compared to a no-contact condition...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29465422/elevated-postmortem-vitreous-sodium-and-chloride-level-in-a-salt-water-drowning-death-during-self-contained-underwater-breathing-apparatus-diving-with-diving-mask-in-place-case-report
#3
Rexson Tse, Jack Garland, Kilak Kesha, Paul Morrow, Hannah Elstub, Allan Cala, Amy Spark, Simon Stables, Martin Sage
Elevation of postmortem vitreous sodium and chloride (PMVSC) levels in salt water drowning (SWD) is hypothesized to result from electrolyte changes in blood from salt water inhalation/ingestion during drowning. After approximately 1 hour after death, electrolytes may diffuse into the vitreous humor via the eye coverings. This hypothesis was based on a study where bovine eyeballs were immersed in salt water. There is no human study that could confirm that SWD would result in an initial elevation of PMVSC with no effects from immersion...
February 16, 2018: American Journal of Forensic Medicine and Pathology
https://www.readbyqxmd.com/read/29462013/patient-acceptance-of-sustained-glaucoma-treatment-strategies
#4
Varshini Varadaraj, Malik Y Kahook, Pradeep Y Ramulu, Ian F Pitha
PURPOSE: To assess patient acceptance of different methods for delivering sustained-release, intraocular pressure (IOP) lowering medications METHODS:: Electronic surveys were administered to 150 patients at two glaucoma clinics. Participants were questioned on their willingness to accept: (1) drug-eluting contact lenses, (2) ring inserts (3) punctal plugs, and (4) sub-conjunctival injections as alternatives to IOP-lowering eye drops based on various success levels. Multivariable logistic regression models determined the association between device type and treatment acceptance adjusting for age, gender, study site, cost burden of drops, and previous contact lens use...
February 16, 2018: Journal of Glaucoma
https://www.readbyqxmd.com/read/29461267/a-prospective-transcranial-doppler-ultrasound-based-evaluation-of-the-effects-of-repetitive-subconcussive-head-trauma-on-neurovascular-coupling-dynamics
#5
Alexander D Wright, Jonathan D Smirl, Kelsey Bryk, Michael Jakovac, Paul van Donkelaar
OBJECTIVE: To determine the effects of repetitive subconcussive head trauma on neurovascular coupling (NVC) responses. DESIGN: Prospective cohort study collected between September 2013 and December 2016. SETTING: University laboratory. PARTICIPANTS: One hundred seventy-nine elite, junior-level (age, 19.6 ± 1.5 years) contact sport (ice hockey, American football) athletes recruited for preseason testing. Fifty-two nonconcussed athletes returned for postseason testing...
February 14, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29457465/further-evaluation-of-a-practitioner-model-for-increasing-eye-contact-in-children-with-autism
#6
John T Rapp, Jennifer L Cook, Raluca Nuta, Carissa Balagot, Kayla Crouchman, Claire Jenkins, Sidrah Karim, Chelsea Watters-Wybrow
Cook et al. recently described a progressive model for teaching children with autism spectrum disorder (ASD) to provide eye contact with an instructor following a name call. The model included the following phases: contingent praise only, contingent edibles plus praise, stimulus prompts plus contingent edibles and praise, contingent video and praise, schedule thinning, generalization assessments, and maintenance evaluations. In the present study, we evaluated the extent to which modifications to the model were needed to train 15 children with ASD to engage in eye contact...
February 1, 2018: Behavior Modification
https://www.readbyqxmd.com/read/29445872/bowman-layer-transplantation-5-year-results
#7
Korine van Dijk, Jack S Parker, Lamis Baydoun, Abbas Ilyas, Isabel Dapena, Esther A Groeneveld-van Beek, Gerrit R J Melles
PURPOSE: The purpose of this study was to evaluate the 5-year clinical results of isolated Bowman layer (BL) transplantation in the treatment of advanced keratoconus. METHODS: In this prospective, single-center, interventional case series at a tertiary referral center, 20 eyes of 17 patients with advanced keratoconus underwent BL transplantation, i.e. an isolated Bowman layer graft was positioned into a manually dissected mid-stromal pocket. Scheimpflug-based corneal tomography measurements, best corrected spectacle and contact lens visual acuities (BSCVA and BCLVA), endothelial cell density, and complications were evaluated up to 5 years after surgery...
February 14, 2018: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/29443802/full-thickness-macular-hole-with-macular-intrachoroidal-cavitation-in-a-patient-with-pathologic-myopia
#8
Nurgül Örnek, Kemal Örnek
PURPOSE: To describe a full-thickness macular hole (MH) opening to macular intrachoroidal cavitation in a patient with pathologic myopia. METHODS: Full ophthalmologic examination, fundus camera (Topcon TRC; Topcon Co, Tokyo, Japan), optical coherence tomography (RetinaScan Advanced RS-3000; NIDEK, Gamagori, Japan) imaging, and cataract surgery. RESULTS: A 61-year-old woman admitted with decreased vision in the left eye. Visual acuity was counting fingers from 30 cm...
February 13, 2018: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/29443031/ultrasound-cyclo-plasty-in-eyes-with-glaucoma
#9
Giuseppe Giannaccare, Stefano Sebastiani, Emilio C Campos
Glaucoma is a chronic disease caused by the progressive degeneration of the optical nerve fibers, resulting in decreased visual field that can lead to severe visual impairment, and eventually blindness. This manuscript describes a simple, surgeon-friendly, non-incisional technique, named Ultrasound Cyclo Plasty (UCP), for reducing intraocular pressure (IOP) in glaucoma patients. The technique determines a selective coagulation necrosis of the ciliary body; in addition, the stimulation of supra-choroidal and trans-scleral portions of the uveo-scleral outflow pathway has been recently proposed...
January 26, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29438121/comparison-of-the-lotrafilcon-b-and-comfilcon-a-silicone-hydrogel-bandage-contact-lens-on-postoperative-ocular-discomfort-after-photorefractive-keratectomy
#10
Mehrdad Mohammadpour, Zahra Heidari, Hassan Hashemi, Soheila Asgari
OBJECTIVES: To compare the lotrafilcon B and comfilcon A silicone hydrogel bandage contact lenses after photorefractive keratectomy (PRK). METHODS: One hundred twenty eyes of 60 patients who underwent PRK were included in this randomized clinical trial study. In the end of the surgery, the lotrafilcon B (Air Optix; Ciba Vision, Duluth, GA) was used in one eye and the comfilcon A (Biofinity; Coopervision, Fairport, NY) was used in the fellow eye randomly. Pain and discomfort were assessed on the first and third day after surgery by visual analogue scale...
February 12, 2018: Eye & Contact Lens
https://www.readbyqxmd.com/read/29436353/feeding-infants-with-neonatal-abstinence-syndrome-finding-the-sweet-spot
#11
Denise J Maguire, Emily Shaffer-Hudkins, Kathleen Armstrong, Leah Clark
PURPOSE: The purpose of this study is to learn how caregivers who are expert in feeding infants with neonatal abstinence syndrome (NAS) successfully feed these infants during withdrawal. DESIGN/SAMPLE: Focus group methodology was used to gather information from self-identified experts from three large regional NICUs. Twelve NICU nurses and speech therapists participated in open-ended, recorded discussions. Detailed flip chart notes were taken, reviewed, and verified by the participants before the group ended...
January 1, 2018: Neonatal Network: NN
https://www.readbyqxmd.com/read/29434728/chitosan-temperature-sensitive-gel-loaded-with-drug-microspheres-has-excellent-effectiveness-biocompatibility-and-safety-as-an-ophthalmic-drug-delivery-system
#12
Xiaoying Kong, Wenhua Xu, Cuiping Zhang, Wei Kong
In the present study, a temperature-sensitive gel composed of chitosan, carboxymethyl chitosan and glycerophosphate was prepared and loaded with chitosan microspheres encapsulating levofloxacin. The bioavailability of levofloxacin and the safety of this novel opthalmic drug delivery formulation were evaluated. Levofloxacin chitosan microspheres were prepared using the ionic gelation method, and the particle size and entrapment rate were determined. The morphology of the microspheres was observed by scanning electron microscopy...
February 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29432780/how-mechanical-forces-shape-the-developing-eye
#13
REVIEW
Hadi S Hosseini, Larry A Taber
In the vertebrate embryo, the eyes develop from optic vesicles that grow laterally outward from the brain tube and contact the overlying surface ectoderm. Within the region of contact, each optic vesicle and the surface ectoderm thicken to form placodes, which then invaginate to create the optic cup and lens pit, respectively. Eventually, the optic cup becomes the retina, while the lens pit closes to form the lens vesicle. Here, we review current hypotheses for the physical mechanisms that create these structures and present novel three-dimensional computer (finite-element) models to illustrate the plausibility and limitations of these hypotheses...
February 9, 2018: Progress in Biophysics and Molecular Biology
https://www.readbyqxmd.com/read/29430944/social-partner-gaze-direction-and-conversational-phase-factors-affecting-social-attention-during-face-to-face-conversations-in-autistic-adults
#14
Megan Freeth, Patricia Bugembe
Social attention is atypical in autism. However, the majority of evidence for this claim comes from studies where the social partner is not physically present and the participants are children. Consequently, to ensure acquisition of a comprehensive overview of social attention in autism, systematic analysis of factors known to influence face-to-face social attention in neurotypicals is necessary and evidence from adulthood is required. This study assessed the influence of experimenter gaze direction (direct or averted) and conversational phase (speaking or listening) on social attention during a face-to-face conversation...
February 1, 2018: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29428869/cross-sectional-study-to-assess-the-association-of-color-vision-with-mercury-hair-concentration-in-children-from-brazilian-amazonian-riverine-communities
#15
Joyce Dos Santos Freitas, Eliza Maria da Costa Brito Lacerda, Isabelle Christine Vieira da Silva Martins, Dario Rodrigues, Daniela Maria Oliveira Bonci, Maria Izabel Tentes Cortes, Tereza Cristina Oliveira Corvelo, Dora Fix Ventura, Luiz Carlos de Lima Silveira, Maria da Conceição Nascimento Pinheiro, Givago da Silva Souza
BACKGROUND: Mercury exposure in the Brazilian Amazon region has been an important concern since the 1980s, when gold mining activities contaminated many Amazonian river basins and the fish therein. Mercury exposure in humans can lead to changes in neural function. The visual system has been used as a functional indicator of methylmercury (organic) and mercury vapour (inorganic) toxicity. Children are particularly vulnerable to this metal exposure. OBJECTIVE: To compare the color vision of children from riverine communities of mercury-exposed (Tapajós basin) and non-exposed Amazonian rivers (Tocantins basin)...
February 8, 2018: Neurotoxicology
https://www.readbyqxmd.com/read/29428083/comparison-of-central-corneal-thickness-in-dogs-measured-by-ultrasound-pachymetry-and-ultrasound-biomicroscopy
#16
Eva Martín-Suárez, Alba Galán, Juan Morgaz, Alicia Guisado, José María Gallardo, Rafael Jesús Gómez-Villamandos
Ultrasound pachymetry (UP) is currently the most common technique used to evaluate central corneal thickness (CCT). New devices which allow assessment of CCT without corneal contact have been compared, but there are discrepancies among instruments. The aim of this study was to compare CCT measurements obtained by UP and ultrasound biomicroscopy (UBM) in 28 eyes of 14 healthy Beagles dogs. Mean CCT±standard deviation (SD) were 552±63μm for UP and 551±55μm for UBM. UBM showed both a fixed and proportional bias when compared to ultrasound pachymetry, but this was not considered to be clinically important...
February 2018: Veterinary Journal
https://www.readbyqxmd.com/read/29426444/eyeprintpro-therapeutic-scleral-contact-lens-indications-and-outcomes
#17
Michael T B Nguyen, Vishakha Thakrar, Clara C Chan
OBJECTIVE: To describe indications and outcomes of patients fitted with the EyePrintPRO therapeutic scleral lens. METHODS: A database search of patients fitted with the EyePrintPRO from 2014 to 2016. Fourteen eyes of 10 patients were reviewed retrospectively. Patient demographics, medical and ocular history, indications for fitting, duration of wear, symptoms, and best-corrected visual acuity (BCVA) were analyzed. RESULTS: Mean age at lens fitting was 49 years (range, 21-67 years)...
February 2018: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/29423513/association-of-contact-lens-adherence-with-visual-outcome-in-the-infant-aphakia-treatment-study-a-secondary-analysis-of-a-randomized-clinical-trial
#18
Caroline H Cromelin, Carolyn Drews-Botsch, Buddy Russell, Scott R Lambert
Importance: Although contact lenses have been used for decades to optically correct eyes in children after cataract surgery, there has never been a prospective study looking at contact lens adherence in children with aphakia, to our knowledge. Objective: To evaluate contact lens adherence and its association with visual outcome in a cohort of children treated for unilateral cataract surgery. Design, Setting, and Participants: Secondary analysis of a multicenter randomized clinical trial of 57 infants born from August 22, 2004, to April 25, 2008, who were randomized to 1 of 2 treatments and followed up to age 5 years...
February 8, 2018: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29421293/chronic-ocular-sequelae-of-stevens-johnson-syndrome-in-children-long-term-impact-of-appropriate-therapy-on-natural-history-of-disease
#19
Sayan Basu, Swapna S Shanbhag, Arjun Gokani, Richa Kedar, Chirag Bahuguna, Virender S Sangwan
PURPOSE: To describe the long-term ocular and visual morbidity in children with chronic sequelae of Stevens-Johnson Syndrome (SJS) and visual outcomes of various management strategies. DESIGN: Retrospective comparative case series. METHODS: This study included 568 eyes of 284 children with SJS who presented between 1990 and 2015. Affected eyes either received conservative therapy (n=440) or definitive management (n=128) including lid margin mucous membrane grafting (MMG), prosthetic replacement of the ocular surface ecosystem (PROSE) contact lenses, allogeneic limbal transplantation or keratoprosthesis using an algorithmic approach based on the severity of dryness and cause and extent of corneal damage...
February 5, 2018: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/29420325/variation-of-coma-aberration-with-prismatic-soft-contact-lenses
#20
Carlos Carpena-Torres, José Manuel López-Alonso, Mercedes Burgos-Martínez, Gonzalo Carracedo, Jesús Carballo-Álvarez
PURPOSE: To analyze the variation in vertical coma and the rest of ocular aberrations before and after fitting prismatic soft contact lenses (PSCL). METHODS: Thirty-seven eyes of 20 healthy subjects (24.30±2.03 years) were evaluated to analyze the variation in ocular wavefront aberrations before and after fitting PSCL of different base-down prism values (1.0, 1.5, and 2.0 prism diopters [PD]), designed to study its influence in the compensation of vertical coma aberration...
February 7, 2018: Eye & Contact Lens
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