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https://www.readbyqxmd.com/read/28654033/scanning-light-scattering-profiler-slps-based-methodology-to-quantitatively-evaluate-forward-and-backward-light-scattering-from-intraocular-lenses
#1
Bennett N Walker, Robert H James, Don Calogero, Ilko K Ilev
The scanning light scattering profiler (SLSP) methodology has been developed for the full-angle quantitative evaluation of forward and backward light scattering from intraocular lenses (IOLs) using goniophotometer principles. This protocol describes the SLSP platform and how it employs a 360° rotational photodetector sensor that is scanned around an IOL sample while recording the intensity and location of scattered light as it passes through the IOL medium. The SLSP platform can be used to predict, non-clinically, the propensity for current and novel IOL designs and materials to induce light scatter...
June 6, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28649681/bio-inspired-colorful-flexible-defrostable-light-scattering-hybrid-films-for-the-effective-distribution-of-led-light
#2
Seongpil An, Hong Seok Jo, Yong Il Kim, Kyo Yong Song, Min-Woo Kim, Kyu Bum Lee, Alexander L Yarin, Sam S Yoon
Bioluminescent jellyfish has a unique structure derived from fiber/polymer interfaces that is advantageous for effective light scattering in the dark, deep sea water. Herein, we demonstrate the fabrication of bio-inspired hybrid films by mimicry of the jellyfish's structure, leading to excellent light-scattering performance and defrosting capability. A haze value reaching 59.3% and a heating temperature of up to 292 °C were achieved with the films. Accordingly, the developed surface constitutes an attractive optical device for lighting applications, especially for street or vehicle luminaries for freezing Arctic-climate countries...
June 26, 2017: Nanoscale
https://www.readbyqxmd.com/read/28617730/eye-symptom-questionnaire-to-evaluate-anterior-eye-health
#3
Maria A Woodward, Nita G Valikodath, Paula Anne Newman-Casey, Leslie M Niziol, David C Musch, Paul P Lee
OBJECTIVES: Ophthalmologists assess eye complaints with a careful history and eye examination; however, other types of physicians have limited tools to evaluate anterior segment (AS) eye diseases. We identified the eye symptom questions that providers should ask to help determine the presence and urgency of AS eye diseases. METHODS: Persons with and without AS disease completed a self-report eye symptom questionnaire (ESQ) based on the National Institutes of Health Toolbox symptom items in an academic center's corneal and comprehensive eye clinics...
June 14, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28598113/-effects-of-huoxue-dingxuan-capsule-glare-on-vertebral-artery-blood-flow-plasma-pai-and-t-pa-in-csa-rat-models
#4
Qing-Lin Li, Min Song, Ding-Ping Sun, Bin-Xiao Sun, Tao Liu, Yan-Long Gong, Ju-Tang Chai, Xiao Liu
OBJECTIVES: To determine the effects of Huoxue Dingxuan Capsule on vertebral artery blood flow,plasma plasminogen activator (t-PA) and plasminogen activator inhibitor (PAI) in rats with cervical spondylosis of vertebral artery type (CSA). METHODS: Ninety healthy male Wistar rats were equally and randomly divided into control,model and treatment groups.The rats in the model and treatment groups were subject to composite modeling manufacturing CSA.The treatment group was given six-week interventions with Huoxue Dingxuan capsule 4 weeks after the modeling...
November 2016: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28586495/meta-analysis-of-the-fda-reports-on-patient-reported-outcomes-using-the-three-latest-platforms-for-lasik
#5
Majid Moshirfar, Tirth J Shah, David Franklin Skanchy, Steve H Linn, Daniel S Durrie
PURPOSE: To analyze the impact of the three latest U.S. Food and Drug Administration (FDA)-approved lasers on patient-reported outcomes after LASIK. METHODS: In this meta-analysis of patient-reported FDA data, an aggregated total of 718 eyes undergoing LASIK using VISX iDesign (Abbott Medical Optics Manufacturing, Milpitas, CA), Alcon Contoura (Alcon Research, Ltd., Fort Worth, TX), and Nidek CATz (Nidek Co. Ltd., Gamagori, Japan) lasers were evaluated for overall changes in visual symptoms postoperatively...
June 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28574528/does-provider-self-reporting-of-etiquette-behaviors-improve-patient-experience-a-randomized-controlled-trial
#6
Zishan Siddiqui, Rehan Qayyum, Amanda Bertram, Nowella Durkin, Sosena Kebede, Lucia Ponor, Ibironke Oduyebo, Lisa Allen, Daniel J Brotman
BACKGROUND: There is a glaring lack of published evidence-based strategies to improve the Hospital Consumer Assessment of Healthcare Providers and Systems (HCAHPS) patient experience scores on the physician domain. Strategies that have been used are resource intensive and difficult to sustain. OBJECTIVE: We hypothesized that prompting providers to assess their own etiquette-based practices every 2 weeks over the course of 1 year would improve patient experience on the physician domain...
June 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/28574135/patient-centered-and-visual-quality-outcomes-of-premium-cataract-surgery-a-systematic-review
#7
Sophia Y Wang, Maxwell S Stem, Gale Oren, Roni Shtein, Paul R Lichter
PURPOSE: Over 8 million cataract surgeries are performed in the United States and the European Union annually, with many patients choosing to pay out of pocket for premium options including premium intraocular lens implants (IOLs) or laser-assisted cataract surgery (LACS). This report provides a systematic review evaluating patient-centered and visual quality outcomes comparing standard monofocal IOLs to premium cataract surgery options. METHODS: PubMed and EMBASE were searched for publications published between January 1, 1980, and September 18, 2016, on multifocal, accommodative, and toric IOLs, monovision, and LACS, which reported on 1) dysphotopsias, 2) contrast sensitivity, 3) spectacle independence, 4) vision-related quality of life or patient satisfaction, and 5) IOL exchange...
April 24, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/28564700/nighttime-driving-in-older-adults-effects-of-glare-and-association-with-mesopic-visual-function
#8
Janessa A Kimlin, Alex A Black, Joanne M Wood
Purpose: To examine the associations between nighttime driving performance of older drivers and photopic, mesopic, and glare-based tests of visual function. Methods: Participants included 26 older drivers (71.8 ± 6.3 years), with minimal or no eye disease, but who reported vision-related nighttime driving difficulties. Nighttime driving performance was assessed on a closed-road circuit, which included intermittent glare. An overall driving performance score was calculated based on detection of signs, pedestrians, wooden animals and road markings, lane-keeping, and avoidance of low contrast hazards...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28562160/work-experiences-of-patients-receiving-palliative-care-at-a-comprehensive-cancer-center-exploratory-analysis
#9
Paul A Glare, Tanya Nikolova, Alberta Alickaj, Sujata Patil, Victoria Blinder
BACKGROUND: Employment-related issues have been largely overlooked in cancer patients needing palliative care. These issues may become more relevant as cancer evolves into more of a chronic illness and palliative care is provided independent of stage or prognosis. OBJECTIVE: To characterize the employment situations of working-age palliative care patients. DESIGN: Cross-sectional survey setting/subjects: Consecutive sample of 112 patients followed in palliative care outpatient clinics at a comprehensive cancer center...
May 31, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28560652/comparative-study-of-visual-function-and-ocular-aberrations-of-two-different-one-piece-designed-hydrophilic-acrylic-intraocular-lens
#10
Yuxin Zhao, Zhaoxia Wang, Xia Tian, Xuehong Wang, Xining Gao
PURPOSE: To determine whether the aspherical IOL, Tecnis ZCB00, can improve the visual quality by measuring visual acuity, wavefront aberrations, and contrast sensitivity. METHODS: It was a retrospective case series. Patients who underwent phacoemulsification cataract surgery were divided into two groups. One group (Group TC) was implanted with one-piece aspherical acrylic IOL (Tecnis ZCB00, AMO); the other (Group SA) was implanted with one-piece spherical acrylic IOL (Sensar AAB00, AMO)...
May 30, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28557825/suture-of-symptomatic-yag-laser-peripheral-iridotomies-following-phakic-intraocular-lens-implantation
#11
Daniele Tognetto, Chiara De Giacinto, Gabriella Cirigliano
A 45-year-old woman complained of glare and photophobia after iris-fixated phakic intraocular lens (IFPIOL) implantation in her left eye. The patient underwent prophylactic laser peripheral iridotomies (LPIs) 2 days before surgery. The uncorrected visual acuity after surgery was 20/20 and the intraocular pressure was 14 mm Hg. The slit-lamp examination showed a well-centered IFPIOL and 2 LPIs at 10 and 2 o'clock partially covered by the upper lid. Twenty days after IFPIOL implantation, as symptoms persisted and were intolerable to the patient, we decide to suture iridotomies using a modified Siepser slip-knot technique...
May 26, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28551428/delivery-of-riboflavin-5-monophosphate-into-the-cornea-can-liposomes-provide-any-enhancement-effects
#12
Neva Kandzija, Vitaliy V Khutoryanskiy
Keratoconus is a progressive condition caused by the thinning of the cornea, which eventually deforms the front surface of the eye into a cone shape leading to ghosting, multiple images, glare, and several other vision problems. Currently, keratoconus is treated with UV-induced riboflavin (Rb)-mediated collagen cross-linking, which requires a physical removal of the corneal epithelium under topical anesthesia. This study reports the penetration of Rb and its more water-soluble form, riboflavin-5'-monophosphate (RbP), into the bovine cornea ex vivo...
May 24, 2017: Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28543966/development-of-a-quantitative-assessment-method-of-pigmentary-skin-disease-using-ultraviolet-optical-imaging
#13
Onseok Lee, Sunup Park, Jaeyoung Kim, Chilhwan Oh
BACKGROUND/PURPOSE: The visual scoring method has been used as a subjective evaluation of pigmentary skin disorders. Severity of pigmentary skin disease, especially melasma, is evaluated using a visual scoring method, the MASI (melasma area severity index). This study differentiates between epidermal and dermal pigmented disease. The study was undertaken to determine methods to quantitatively measure the severity of pigmentary skin disorders under ultraviolet illumination. METHODS: The optical imaging system consists of illumination (white LED, UV-A lamp) and image acquisition (DSLR camera, air cooling CMOS CCD camera)...
May 21, 2017: Skin Research and Technology
https://www.readbyqxmd.com/read/28530080/-cataract-surgery-complications-in-males-treated-with-alpha-1-antagonists-for-benign-prostatic-hyperplasia
#14
REVIEW
Tamar Pedut Kloizman, Raneen Shehadeh Mashour
Intraoperative floppy iris syndrome (IFIS) was first described by Chang and Campbell in 2005. The characteristics of this syndrome include: 1. Floppy iris that billows in reaction to intraocular fluid currents during standard phacoemulsification procedure; 2. Flaccid iris stroma that tends to prolapse through well-constructed surgical incisions; 3. Insufficient pupillary mydriasis despite proper pharmacologic preparation and progressive pupillary constriction during the operation. Surgical procedures with IFIS have since been noted to have an exceptionally high rate of complications, some of which can be vision threatening...
September 2016: Harefuah
https://www.readbyqxmd.com/read/28503438/comparison-of-visual-effects-of-fs-lasik-for-myopia-centered-on-the-coaxially-sighted-corneal-light-reflex-or-the-line-of-sight
#15
Jing Zhang, Shi-Sheng Zhang, Qin Yu, Jing-Cai Lian
AIM: To compare visual quality after femtosecond laser in situ keratomileusis (FS-LASIK), between the coaxially sighted corneal light reflex (CSCLR) group and conventional ablation line of sight (LOS) group. METHODS: In total, 243 eyes (122 patients) were treated with centration on the CSCLR (visual axis) and 238 eyes (119 patients) treated with centration on the pupil center (LOS). Postoperative outcomes [uncorrected visual acuity (UCVA), best spectacle-corrected visual acuity (BSCVA)], safety index, efficacy index, refractive outcome, ablation center distance from the visual axis, corneal high-order aberrations, subjective discomfort glare and shadowing incidence rate, and contrast sensitivity at 1, 3, and 6mo were measured and compared...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28498933/preliminary-evaluation-of-discomfort-glare-from-organic-light-emitting-diode-and-edge-lit-light-emitting-diode-lighting-panels
#16
Xi Mou, Jean Paul Freyssinier, Nadarajah Narendran, John D Bullough
No abstract text is available yet for this article.
May 1, 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28469642/neuromelanin-one-of-the-most-overlooked-molecules-in-modern-medicine-is-not-a-spectator
#17
REVIEW
Robert L Haining, Cindy Achat-Mendes
The loss of pigmented neurons from the human brain has long been the hallmark of Parkinson's disease (PD). Neuromelanin (NM) in the pre-synaptic terminal of dopamine neurons is emerging as a primary player in the etiology of neurodegenerative disorders including PD. This mini-review discusses the interactions between neuromelanin and different molecules in the synaptic terminal and describes how these interactions might affect neurodegenerative disorders including PD. Neuromelanin can reversibly bind and interact with amine containing neurotoxins, e...
March 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28457282/outcomes-after-implantable-collamer-lens-surgery-in-a-canadian-cohort
#18
Aaron T Chan, Noa A Zauberman, Clara C Chan, David S Rootman
OBJECTIVE: To describe refractive outcomes and complications after implantable collamer lens (ICL) implantation. DESIGN: Retrospective, interventional case series. METHODS: A database search of ICL surgeries over a 5-year period (2009-2013) was conducted, and 83 eyes of 44 patients were included. The Visian ICL (STAAR Surgical, Monrovia, Calif.) was used in all eyes. The primary outcome measure was postoperative uncorrected distance acuity (UCDA)...
April 2017: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/28433446/functional-magnetic-resonance-imaging-to-assess-the-neurobehavioral-impact-of-dysphotopsia-with-multifocal-intraocular-lenses
#19
Andreia M Rosa, Ângela C Miranda, Miguel Patrício, Colm McAlinden, Fátima L Silva, Joaquim N Murta, Miguel Castelo-Branco
PURPOSE: To investigate the association between dysphotopsia and neural responses in visual and higher-level cortical regions in patients who recently received multifocal intraocular lens (IOL) implants. DESIGN: Cross-sectional study. PARTICIPANTS: Thirty patients 3 to 4 weeks after bilateral cataract surgery with diffractive IOL implantation and 15 age- and gender-matched control subjects. METHODS: Functional magnetic resonance imaging (fMRI) was performed when participants viewed low-contrast grating stimuli...
April 19, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28429904/effect-of-lutein-supplementation-on-visual-function-in-nonproliferative-diabetic-retinopathy
#20
Ping-Chuan Zhang, Chang-Rui Wu, Zhi-Lun Wang, Li-Yuan Wang, Yue Han, Shu-Liu Sun, Qing-Shan Li, Le Ma
BACKGROUND AND OBJECTIVES: The purpose of this study was to determine whether supplementation with lutein improved visual function in patients with nonproliferative diabetic retinopathy (NPDR). METHODS AND STUDY DESIGN: In this randomized, double-blind, placebo-controlled trial, 31 patients with NPDR were assigned randomly to 10 mg/d of lutein or identical placebo for 36 weeks. Visual performance indices, including visual acuity (VA), contrast sensitivity (CS) and glare sensitivity (GS) at four different spatial frequencies, were measured at baseline, week 18 and 36...
May 2017: Asia Pacific Journal of Clinical Nutrition
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