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https://www.readbyqxmd.com/read/28821083/vapor-sensing-with-color-tunable-multilayered-coatings-of-cellulose-nanocrystals
#1
Yu Zhao, Guizhi Gao, Dagang Liu, Donglin Tian, Yinyan Zhu, Yu Chang
Colloidal cellulose nanocrystals were LBL deposited to form firmly-stacked optical coatings in which the nanorods regulated their head-to-tail association and aligned in the axial-centrifuged direction. The periodically transition from blue to orange of reflected colors was tunable via deposition layer adjustment. While the sensing coating was exposed to vapors of NH3(.)H2O, H2O, HCl and HAc, respectively, the color variation in the response process was irreversible at room temperature and highly dependent on vapor diffusion and chemical interface interaction...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28820927/-my-son-s-darker-eye-also-has-increased-pressure
#2
David S Walton, Helen H Yeung
No abstract text is available yet for this article.
July 1, 2017: Journal of Pediatric Ophthalmology and Strabismus
https://www.readbyqxmd.com/read/28820922/a-self-assembling-peptide-gel-as-a-vitreous-substitute-a-rabbit-study
#3
Koji Uesugi, Hirokazu Sakaguchi, Yasutaka Hayashida, Ryuhei Hayashi, Koichi Baba, Yuya Suganuma, Hidenori Yokoi, Motokazu Tsujikawa, Kohji Nishida
Purpose: To evaluate a self-assembling peptide gel as a potential vitreous substitute. Methods: PanaceaGel SPG-178, a self-assembling peptide gel, was diluted with distilled water and a balanced salt solution to achieve a final peptide concentration of 0.1%. The gel's refractive index, visible light transmission rate, and rheologic properties were investigated. The gel's biocompatibility was evaluated by examining the cellular viability (live and dead staining) and proliferation rate (alamarBlue assay)...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28820921/analysis-of-cone-mosaic-reflectance-properties-in-healthy-eyes-and-in-eyes-with-nonproliferative-diabetic-retinopathy-over-time
#4
Letizia Mariotti, Nicholas Devaney, Giuseppe Lombardo, Marco Lombardo
Purpose: We investigate the reflectance properties of the cone mosaic in adaptive optics (AO) images of healthy subjects and subjects with nonproliferative diabetic retinopathy (NPDR) over time. Methods: We acquired images of the parafoveal cone mosaic over 5 years in 12 healthy subjects and in six patients with mild NPDR. We analyzed the parameters of the cone intensity histogram distribution (mean, SD, and skewness), two metrics of the cone mosaic texture (sharpness and entropy), and two novel metrics (cone/intercone intensity and slope of the variogram)...
August 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28820850/ultrasonographic-findings-in-the-vitreous-of-patients-with-age-related-macular-degeneration-treated-with-intravitreal-anti-vascular-endothelial-growth-factor-injections
#5
Tamara Mato-Gondelle, Manuel F Bande, Laura Paniagua, María J Rodríguez-Cid, Maximino Abraldes, Maribel Fernández, María J Blanco-Teijeiro, Antonio Piñeiro
PURPOSE: We aimed to assess the relationship of repeated intravitreal injection of anti-vascular endothelial growth factor, the main treatment for exudative age-related macular degeneration, with changes in vitreous ultrasonographic findings in patients with age-related macular degeneration. METHODS: We retrospectively collected data from 41 patients (41 age-related macular degeneration eyes, 41 control eyes) on age, sex, number of injections, and type of anti-vascular endothelial growth factor (ranibizumab, aflibercept)...
August 16, 2017: Retina
https://www.readbyqxmd.com/read/28820848/ranibizumab-and-aflibercept-for-the-treatment-of-pigment-epithelial-detachment-in-neovascular-age-related-macular-degeneration-data-from-an-observational-study
#6
Anagha Vaze, Vuong Nguyen, Vincent Daien, Jennifer J Arnold, Stephanie H Young, Chui M Cheung, Ecosse Lamoureux, Mayuri Bhargava, Daniel Barthelmes, Mark C Gillies
PURPOSE: To assess the effect of intravitreal ranibizumab and aflibercept on retinal pigment epithelial detachment (RPED) in patients with neovascular age-related macular degeneration. METHODS: This was a retrospective analysis of data from a prospectively designed and implemented clinical audit. Analysis included change in RPED dimensions and visual acuity in 92/233 treatment-naive eyes with neovascular age-related macular degeneration and RPED 6 months after treatment with either aflibercept or ranibizumab...
August 16, 2017: Retina
https://www.readbyqxmd.com/read/28820793/codeine-plus-acetaminophen-for-pain-after-photorefractive-keratectomy-a-randomized-double-blind-placebo-controlled-add-on-trial
#7
Vinicius B P Pereira, Renato Garcia, Andre A M Torricelli, Adriana Mukai, Samir J Bechara
BACKGROUND: Pain after photorefractive keratectomy (PRK) is significant, and the analgesic efficacy and safety of oral opioids in combination with acetaminophen has not been fully investigated in PRK trials. PURPOSE: To assess the efficacy and safety of the combination of codeine plus acetaminophen (paracetamol) versus placebo as an add-on therapy for pain control after PRK. STUDY DESIGN: Randomized, double-blind, placebo-controlled trial...
August 17, 2017: Cornea
https://www.readbyqxmd.com/read/28820791/teleophthalmic-approach-for-detection-of-corneal-diseases-accuracy-and-reliability
#8
Maria A Woodward, David C Musch, Christopher T Hood, Jonathan B Greene, Leslie M Niziol, V Swetha E Jeganathan, Paul P Lee
PURPOSE: Corneal and anterior segment diseases cause most of the urgent visits to eye care professionals. We evaluated the diagnostic accuracy of detecting corneal diseases using external photographs from 2 portable cameras for telemedicine purposes. METHODS: This is a prospective study of adults with a clinical diagnosis of corneal pathology including corneal abrasions, ulcers, scars, and pterygia. A cornea specialist provided the gold standard diagnosis by slit-lamp examination...
August 17, 2017: Cornea
https://www.readbyqxmd.com/read/28820764/severe-case-of-renal-coloboma-syndrome-in-long-term-follow-up
#9
Lise Sels, Werner Dirven, Koenraad Devriendt, Anita Leys
PURPOSE: To characterize the ocular features of a severe case of renal coloboma syndrome in a long-term follow-up. METHODS: Observational case report over a period of 45 years. Examination under anesthesia at the age of 3 months, repeated ophthalmologic examination (age 7, 14, 25, 45 years), fluorescein and indocyanine green angiography, electroretinography, ocular ultrasound, optical coherence tomography, computed tomography scan orbits, and magnetic resonance imaging of the brain...
August 17, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28820753/prevention-of-exposure-keratopathy-in-critically-ill-patients-a-single-center-randomized-pilot-trial-comparing-ocular-lubrication-with-bandage-contact-lenses-and-punctal-plugs
#10
Itai Bendavid, Inbal Avisar, Irena Serov Volach, Amir Sternfeld, Idit Dan Brazis, Lewaa Umar, Yiftach Yassur, Pierre Singer, Jonathan David Cohen
OBJECTIVES: To compare the effectiveness of bandage contact lenses and punctal plugs with ocular lubricants in preventing corneal damage in mechanically ventilated and sedated critically ill patients. DESIGN: Single-center, prospective, randomized, pilot study. SETTING: Sixteen-bed, general ICU at a tertiary academic medical center. PATIENTS: Adults admitted to the ICU and anticipated to require mechanical ventilation and continuous sedation for greater than or equal to 4 days...
August 17, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28820703/assessment-of-u-s-pediatrician-knowledge-of-toxocariasis
#11
Dana M Woodhall, Amanda P Garcia, Craig A Shapiro, Shequenta L Wray, Andi L Shane, Chitra S Mani, Kelly K Stimpert, LeAnne M Fox, Susan P Montgomery
Toxocariasis, one of a group of parasitic diseases known as neglected parasitic infections, is a disease caused by the larvae of two species of Toxocara roundworms, Toxocara canis, from dogs, and less commonly Toxocara cati, from cats. Although most infected individuals are asymptomatic, clinical manifestations may include fever, fatigue, coughing, wheezing, or abdominal pain (visceral toxocariasis) or vision loss, retina damage, or eye inflammation (ocular toxocariasis). To assess U.S. pediatrician knowledge of toxocariasis, we conducted an electronic survey of American Academy of Pediatrics members...
July 31, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28820625/multimodal-image-analysis-of-the-retina-in-hunter-syndrome-mucopolysaccharidosis-type-ii-case-report
#12
Isadora Darriba Macedo Salvucci, Simone Finzi, Maria Kiyoko Oyamada, Chong Ae Kim, Sérgio Luis Gianotti Pimentel
INTRODUCTION: We report a case of retinal and posterior ocular findings in a 33-year-old man diagnosed with Hunter syndrome (Mucopolysaccharidosis type II) in a multimodal imaging way. CASE PRESENTATION: Our patient was complaining of blurred night vision for the past 3 years. He had not received any systemic treatment for Hunter syndrome. Vision acuity was 20/20 in both eyes and corneas were clear. Fundus examination revealed bilateral crowded and hyperemic optic nerve heads (elevated in the ocular ultrasound) and areas of subretinal hypopigmentation...
August 18, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28820353/a-novel-determination-of-energy-expenditure-efficiency-during-a-balance-task-using-accelerometers-a-pilot-study
#13
Alejandro Caña-Pino, Maria Dolores Apolo-Arenas, Javier Moral-Blanco, Ernesto De la Cruz-Sánchez, Luis Espejo-Antúnez
Objectives to determine the displacement of the Center of Pressure (CoP) and its association with the spectral energy density of the acceleration required for the maintenance of postural balance in different standing positions in healthy participants. Design Observational study. Setting Laboratorial study. Participants 30 healthy university students aged between 18 and 32 years old (mean±SD = 21,57 ± 3,31 years). Main outcome measures Triaxial accelerometer and a pressure platform were used in order to obtain energy spectral density and CoP sway measurements during four balance tasks...
August 18, 2017: Assistive Technology: the Official Journal of RESNA
https://www.readbyqxmd.com/read/28820347/association-between-eye-diagnosis-and-positive-syphilis-test-results-in-a-large-urban-sexually-transmitted-infection-primary-care-clinic-population
#14
Ann-Marie Lobo, Yan Gao, Laura Rusie, Magda Houlberg, Supriya D Mehta
In 2015, the Centers for Disease Control and Prevention (CDC) and the American Academy of Ophthalmology (AAO) released clinical advisories on rising cases of ocular syphilis. We examined the association between eye disease and syphilis infection among primary care and sexually transmitted infection (STI) clinic patients attending an urban lesbian, gay, bisexual, transgender (LGBT) health center. We conducted a retrospective medical record review of all patients who underwent syphilis testing at Howard Brown Health between 1 January 2010 and 31 December 2015...
January 1, 2017: International Journal of STD & AIDS
https://www.readbyqxmd.com/read/28820288/cohesive-silicone-gel-implants-with-smooth-textured-or-polyurethane-coated-surface-to-restore-volume-in-eviscerated-sockets
#15
Cristiano Abreu, Seizo Yamashita, Alicia Galindo-Ferreiro, Marilia Modolo, Claudia H Pellizzon, Carlos R Padovani, Mariangela E A Marques, Silvana A Schellini
The purpose of this article is to evaluate the three different surface coating on cohesive silicone gel implants in eviscerated rabbit eye sockets. Forty-five albino rabbits underwent right eye evisceration and received hemisphere-shaped cohesive silicone gel implants with smooth (Group 1), textured (Group 2), or polyurethane-coated surface (Group 3) in the socket. The animals were euthanized at 7, 30, and 90 days postoperatively. Computed tomography of the orbits was performed prior to euthanasia. Subsequently, the orbital contents were removed and underwent histologic and morphometric examination...
August 18, 2017: Orbit
https://www.readbyqxmd.com/read/28820186/parental-inability-to-detect-eye-diseases-in-children-barriers-to-access-of-childhood-eye-care-services-in-south-india
#16
V Kemmanu, S K Giliyar, B K Shetty, A K Singh, G Kumaramanickavel, C A McCarty
No abstract text is available yet for this article.
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820185/can-lester-jones-tubes-be-tolerated-for-decades
#17
R L Scawn, D H Verity, G E Rose
PurposeLester Jones described canalicular bypass tubes 50 years ago. We present a cohort of patients with Jones' tubes first placed between 1969 and 1989, and who were reviewed within the last 15 years.Patients and methodsRetrospective case-note review for living patients identified as having had Jones' tube placement prior to 1990. The duration of Jones' tube usage was noted and the number of replacements recorded.ResultsTwenty-nine patients (33 eyes) had maintenance of their Jones' tube(s) within the last 15 years, and had first tube placement before 1990...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820184/age-related-macular-degeneration-and-mortality-the-melbourne-collaborative-cohort-study
#18
M B McGuinness, R P Finger, A Karahalios, R H Guymer, D R English, E W Chong, A M Hodge, L D Robman, G G Giles, J A Simpson
AimsTo assess associations between features of age-related macular degeneration (AMD) and mortality.MethodsA total of 21 129 participants from the Melbourne Collaborative Cohort Study aged 47-85 years (60% female) were assessed for AMD (2003-2007). Mortality data to December 31, 2012 were obtained through linkage with the National Death Index. Associations were assessed using Cox regression, adjusting for age, sex, smoking, region of birth, education, physical activity, diet and alcohol.ResultsLate AMD was identified in 122 (0...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820183/technique-of-retinal-gene-therapy-delivery-of-viral-vector-into-the-subretinal-space
#19
K Xue, M Groppe, A P Salvetti, R E MacLaren
PurposeSafe and reproducible delivery of gene therapy vector into the subretinal space is essential for successful targeting of the retinal pigment epithelium (RPE) and photoreceptors. The success of surgery is critical for the clinical efficacy of retinal gene therapy. Iatrogenic detachment of the degenerate (often adherent) retina in patients with hereditary retinal degenerations and small volume (eg, 0.1 ml) subretinal injections pose new surgical challenges.MethodsOur subretinal gene therapy technique involved pre-operative planning with optical coherence tomography (OCT) and autofluorescence (AF) imaging, 23 G pars plana vitrectomy, internal limiting membrane staining with Membrane Blue Dual (DORC BV, Zuidland, Netherlands), a two-step subretinal injection using a 41 G Teflon tipped cannula (DORC) first with normal saline to create a parafoveal bleb followed by slow infusion of viral vector via the same self-sealing retinotomy...
August 18, 2017: Eye
https://www.readbyqxmd.com/read/28820170/paradoxical-worsening-of-a-case-of-tb-subretinal-abscess-with-serpiginous-like-choroiditis-following-the-initiation-of-antitubercular-therapy
#20
Sudha K Ganesh, B Sowkath Ali
A 37-year-old immunocompetent male patient presented with the blurring of vision, both eyes for the past1 year. Fundus examination revealed bilateral multiple subretinal abscesses with areas of healed serpiginous-like choroiditis. Laboratory investigations showed positive tuberculin skin test, positive QuantiFERON TB-Gold Test, and high resolution computed tomography chest showed enlarged mediastinal lymph nodes. The aqueous sample revealed polymerase chain reaction (PCR) positive for Mycobacterium tuberculosis (MTB) (MPB64 genome)...
August 2017: Indian Journal of Ophthalmology
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