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https://www.readbyqxmd.com/read/28214552/interocular-suppression-in-children-with-deprivation-amblyopia
#1
Lisa Hamm, Zidong Chen, Jinrong Li, Joanna Black, Shuan Dai, Junpeng Yuan, Minbin Yu, Benjamin Thompson
In patients with anisometropic or strabismic amblyopia, interocular suppression can be minimized by presenting high contrast stimulus elements to the amblyopic eye and lower contrast elements to the fellow eye. This suggests a structurally intact binocular visual system that is functionally suppressed. We investigated whether suppression can also be overcome by contrast balancing in children with deprivation amblyopia due to childhood cataracts. To quantify interocular contrast balance, contrast interference thresholds were measured using an established dichoptic global motion technique for 21 children with deprivation amblyopia, 14 with anisometropic or mixed strabismic/anisometropic amblyopia and 10 visually normal children (mean age mean = 9...
February 15, 2017: Vision Research
https://www.readbyqxmd.com/read/28211184/night-time-pedestrian-conspicuity-effects-of-clothing-on-drivers-eye-movements
#2
Joanne M Wood, Richard A Tyrrell, Philippe Lacherez, Alex A Black
PURPOSE: Drivers' responses and eye movements were assessed as they approached pedestrians at night in order to explore the relative conspicuity benefits of different configurations of retroreflective markings. METHODS: Eye movements were recorded using an ASL Mobile Eye (Applied Science Technologies, www.asleyetracking.com) from 14 young licensed drivers (M = 24.1 ± 6.4 years) as they drove along a closed-road circuit at night. At two locations, pedestrians walked in place facing either towards or away from the road...
March 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28193286/tropical-diabetic-hand-syndrome-a-case-report
#3
Eugene Vernyuy Yeika, Jacques Cabral Tchoumi Tantchou, Joyce Bei Foryoung, Paul Nkemtendong Tolefac, Derrick Tembi Efie, Siméon Pierre Choukem
BACKGROUND: Tropical diabetic hand syndrome describes a complex hand sepsis affecting patients with diabetes across the tropics and often results from a trivial hand trauma. The clinical presentation of this syndrome is variable and ranges from localised swelling and cellulitis, with or without ulceration of the hand to progressive fulminant hand sepsis, and gangrene affecting the entire limb which may be fatal. Tropical diabetic hand syndrome could lead to permanent disability and death as a result of delay in presentation, late diagnosis and late medical and surgical intervention...
February 13, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28183014/a-novel-indolium-salt-as-a-highly-sensitive-and-selective-fluorescent-sensor-for-cyanide-detection-in-water
#4
Apiwat Promchat, Paitoon Rashatasakhon, Mongkol Sukwattanasinitt
A highly sensitive fluorescent turn-on cyanide probe is developed based on benzylidenes containing methylindolium group. Three benzylidene derivatives were synthesized from the condensations of three benzaldehyde derivatives and methyleneindoline. Only one of these three derivatives shows strong blue fluorescent response selectively to CN(-) which can be clearly observed in submicromolar range as the result of the cyanide addition to the indolium group. The detection of cyanide with this compound is optimized in aqueous media using non-ionic surfactant and sonication method to give very low limit of detection in subnanomolar range...
January 18, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28181961/the-association-of-dry-eye-symptom-severity-and-comorbid-insomnia-in-us-veterans
#5
Anat Galor, Benjamin E Seiden, Jasmine J Park, William J Feuer, Allison L McClellan, Elizabeth R Felix, Roy C Levitt, Constantine D Sarantopoulos, Douglas M Wallace
PURPOSE: To investigate the association between dry eye (DE) and insomnia symptom severity. METHODS: Cross-sectional study of 187 individuals seen in the Miami Veterans Affairs eye clinic. An evaluation was performed consisting of questionnaires regarding insomnia (insomnia severity index [ISI]) and DE symptoms, including ocular pain, followed by a comprehensive ocular surface examination. Using a two-step cluster analysis based on intensity ratings of ocular pain, the patient population was divided into two groups (high and low ocular pain groups: HOP and LOP)...
January 6, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28166901/effects-of-ambient-illumination-contrast-polarity-and-letter-size-on-text-legibility-under-glance-like-reading
#6
Jonathan Dobres, Nadine Chahine, Bryan Reimer
Recent research on the legibility of digital displays has demonstrated a "positive polarity advantage", in which black-on-white text configurations are more legible than their negative polarity, white-on-black counterparts. Existing research in this area suggests that the positive polarity advantage stems from the brighter illumination emitted by positive polarity displays, as opposed to the darker backgrounds of negative polarity displays. In the present study, legibility thresholds were measured under glance-like reading conditions using a lexical decision paradigm, testing two type sizes, display polarities, and ambient illuminations (near-dark and daylight-like)...
April 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28159379/factors-affecting-visits-to-the-emergency-department-for-urgent-and-nonurgent-ocular-conditions
#7
Brian C Stagg, Muazzum M Shah, Nidhi Talwar, Dolly A Padovani-Claudio, Maria A Woodward, Joshua D Stein
PURPOSE: To determine the frequency of emergency department (ED) visits for nonurgent and urgent ocular conditions and risk factors associated with ED use for nonurgent and urgent ocular problems. DESIGN: Retrospective, longitudinal cohort analysis. PARTICIPANTS: All enrollees aged 21 years or older in a United States managed care network during 2001-2014. METHODS: We identified all enrollees visiting an ED for ocular conditions identified by International Classification of Diseases, billing codes...
January 31, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28156544/equity-in-patient-provider-communication-regarding-treatment-related-symptoms-and-health-related-quality-of-life-hrqol-among-breast-cancer-survivors
#8
Jennifer Schaal, Linda Robertson, Eugenia Eng, Jemeia G Kollie, Christina Yongue, Karen Foley, Beth Smith, Mellissa K Yee, Kristin Black, Katrina Ellis, Lucretia Hoffman, Alexandra Lightfoot, Claire Morse, Neda Padilla, Sam Cykert
: 127 Background: Compared with white breast cancer patients, black patients more often report inadequate symptom control and decrements in health-related quality of life (HRQOL). Racial differences in patient-provider communication (PPC) are well-documented and linked to worse health outcomes for minorities; however, less is known about inequities in symptom and HRQOL discussions among cancer patients and providers. As part of an NCI-funded systems change intervention to improve racial equity in treatment completion among Black and White cancer patients, we assessed racial differences in PPC regarding treatment-related symptoms, HRQOL issues (e...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28155227/a-new-cave-dwelling-loach-triplophysa-xichouensis-sp-nov-teleostei-nemacheilidae-from-yunnan-china
#9
S W Liu, X F Pan, J X Yang, X Y Chen
A new cave-dwelling loach of the genus Triplophysa, T. xichouensis, is described from an outlet of a subterranean river in Xisa Town, Xichou County, Yunnan Province, China. It can be distinguished from its congeners by the following characters: dorsal-fin rays iii, 8; anal-fin rays ii, 6; pectoral-fin rays i, 9 or 10; pelvic-fin rays i, 5 or 6; branched caudal-fin rays 16(8+8); eyes highly degenerated to a very tiny black dot; dorsal-fin origin closer to snout tip than to caudal-fin base and anterior to vertical line of pelvic-fin origin; pectoral fin length about two-thirds the distance between pectoral-fin origin to pelvic-fin origin; caudal peduncle slender, its length about three times its depth; caudal fin emarginate; body smooth and scaleless; lateral line complete and straight; anterior chamber of air bladder wrapped in dumbbell-shaped bony capsule and the posterior one well developed, long, oval; intestine short, bending in zigzag shape behind stomach...
February 2, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28138214/racial-differences-in-selective-laser-trabeculoplasty-efficacy
#10
Emil Goosen, Kate Coleman, Linda Visser, William E Sponsel
AIM: Sub-Saharan Africa has a population of 1 billion, with one ophthalmologist per million people. Basic ophthalmic support services are virtually absent for all but a few urban populations. Minimally invasive laser treatment may help. This study reports our initial experience using selective laser trabeculoplasty (SLT) in a mixed-racial population of adult glaucoma patients in Durban, South Africa. STUDY DESIGN: Institution Review Board approved the 5-year chart review...
January 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/28132757/oligomerization-affects-the-kinetics-and-thermodynamics-of-the-interaction-of-a-bowman-birk-inhibitor-with-proteases
#11
G D Brand, D A T Pires, J R Furtado, A Cooper, S M Freitas, C Bloch
The black-eyed pea trypsin/chymotrypsin inhibitor (BTCI) forms concentration dependent homomultimers, as previously demonstrated by Light scattering and Atomic Force Microscopy. Considering that these self-aggregates might influence their binding to cognate enzymes, we investigated the interaction of BTCI at picomolar concentrations using surface immobilized Chymotrypsin (α-CT) and Trypsin (T) by Surface Plasmon Resonance. Our results indicate that BTCI has subnanomolar affinity to both immobilized enzymes, which is approximately two orders of magnitude higher than previously reported...
January 26, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28115156/the-black-flies-diptera-simuliidae-of-the-lesser-sunda-archipelago-indonesia
#12
Hiroyuki Takaoka, Mohd Sofian-Azirun, Zubaidah Ya'cob, Chee Dhang Chen, Koon Weng Lau, Van Lun Low, I Wayan Suana
Surveys of pupae and larvae of black flies were carried out in Bali, Lombok, Sumbawa and Flores in the Lesser Sunda Archipelago, Indonesia, where 10 species were known. A total of 14 simuliid species including four new species and five new records of the genus Simulium were collected, bringing the number of species from the Lesser Sunda Archipelago to 19. They are classified into four subgenera: two in Nevermannia, nine in Gomphostilbia, seven in Simulium and one in Wallacellum. One of four new species, Simulium (Simulium) baliense, is described based on females, males, pupae and larvae from Bali and Lombok...
January 20, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28101037/successful-restoration-of-visual-acuity-with-an-extended-range-of-vision-intraocular-lens-after-multifocal-laser-ablation
#13
Sondra Black
As our baby boomer population is aging and developing cataracts, so are our post-LASIK patients. These patients underwent LASIK surgery as they wished to be spectacle-free and are hoping to remain so after intraocular lens (IOL) surgery. Unfortunately, very little information is available regarding the suitability of presbyopia correcting IOLs for post-LASIK patients. This case represents successful implantation of an extended range of vision IOL in a 59-year-old patient who underwent multifocal ablation excimer laser surgery 12 years before...
September 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28098856/anti%C3%A2-wrinkle-effect-of-fermented-black-ginseng-on-human-fibroblasts
#14
Quynh Lien Pham, Hyun-Jun Jang, Kyu-Bong Kim
Fermented black ginseng (FBG) is processed by the repeated steaming and drying of fresh ginseng followed by fermentation with Saccharomyces cerevisiae. It is known to possess anti‑oxidative effects. Skin wrinkle formation is associated with oxidative stress and inflammatory reactions. The aim of this study was to determine whether FBG possesses anti‑wrinkle activity using human fibroblasts (HS68). According to the Korea Ministry of Food and Drug Safety (MFDS) guidelines for the evaluation of the efficacy of functional anti‑wrinkle cosmetics, we attempted to elucidate the effects of FBG on type I procollagen, matrix metalloproteinase (MMP)‑1, MMP‑2, MMP‑9 and tissue inhibitor of metalloproteinase‑2 (TIMP‑2)...
March 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28095539/a-proposed-method-for-upper-eyelid-and-infrabrow-tightening-using-a-transcutaneous-temperature-controlled-radiofrequency-device-with-opaque-plastic-eye-shields
#15
Douglas J Key, Lauren Boudreaux
BACKGROUND: Laxity of the eyelid and periorbital area, a common manifestation of aging, is usually addressed via blepharoplasty and/ or fat transfer. Given the trend toward safer, less invasive treatments preferred by those patients reticent to undergo more invasive procedures, viable alternatives have been sought. Transcutaneous temperature controlled radiofrequency (TTCRF) integrates non- invasive super cial RF treatment with automatic temperature feedback control of energy deposition, as a stimulator of overall collagen remodeling; however, the globe of the eye is particularly sensitive to RF energy...
November 1, 2016: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28092315/choroidal-blood-vessels-in-retinal-pigment-epithelial-atrophy-using-optical-coherence-tomography-angiography
#16
Ichiro Maruko, Hideki Koizumi, Shota Sawaguchi, Taiji Hasegawa, Hisaya Arakawa, Tomohiro Iida
PURPOSE: To observe choroidal blood vessels in cases sharply demarcated with retinal pigment epithelium (RPE) atrophy at the macular area using en-face optical coherence tomography angiography (OCTA) and standard en-face optical coherence tomography (OCT). METHODS: The retrospective study included 12 eyes (8 patients; 5 men, 3 women; average age, 64.3 years) with RPE atrophy seen by ophthalmoscopy. The macular areas with normal and atrophic RPE sections were examined using en-face OCTA with an 840-nm light source (RTVue XR Avanti; Optovue Inc), which system can obtain standard en-face OCT images at identical areas...
January 13, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28078660/racial-ethnic-disparities-in-diabetes-quality-of-care-the-role-of-healthcare-access-and-socioeconomic-status
#17
Juan R Canedo, Stephania T Miller, David Schlundt, Mary K Fadden, Maureen Sanderson
INTRODUCTION: Blacks, Hispanics, and Asians are disproportionately affected by diabetes. We assessed the state of racial/ethnic disparities in diabetes quality of care in the USA. METHODS: We analyzed cross-sectional data of adults diagnosed with Type 2 diabetes in the nationally representative 2013 Medical Expenditure Panel Survey. Differences in adherence to five diabetes quality of care recommendations (HbA1c twice yearly, yearly foot exam, dilated eye exam, blood cholesterol test, and flu vaccination) were examined by race/ethnicity while controlling for three social determinants of health (health insurance status, poverty, and education) and other demographic variables...
January 11, 2017: Journal of Racial and Ethnic Health Disparities
https://www.readbyqxmd.com/read/28053351/functional-analysis-of-the-abcs-of-eye-color-in-helicoverpa-armigera-with-crispr-cas9-induced-mutations
#18
Sher Afzal Khan, Michael Reichelt, David G Heckel
Many insect pigments are localized in subcellular pigment granules, and transport of pigment precursors from the cytoplasm is accomplished by ABC proteins. Drosophila melanogaster has three half-transporter genes (white, scarlet, and brown, all affecting eye pigments) and Bombyx mori has a fourth (ok). The White, Brown, Scarlet and Ok proteins each have one transmembrane and one cytoplasmic domain and they heterodimerize to form functional transporters with different substrate specificities. We used CRISPR/Cas9 to create somatic and germ-line knockout mutations of these four genes in the noctuid moth Helicoverpa armigera...
January 5, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28024137/-secrets-of-the-red-headed
#19
REVIEW
Zygmunt Zdrojewicz, Małgorzata Kowalik, Adam Jagodziński
Only 1-2% of people is red-headed but in the Russian Udmurt Republic or United Kingdom they can be met more often. A specific variant of MC1R gene (R allele) is responsible for the red hair. The gene encodes a receptor for melanocortins. These substances stimulate melanocytes to product melanin- a dye of the skin which is transported to keratinocytes. It protects a cellular nucleus from ultraviolet radiation. Melanin has two types: eumelanin which is dark brown or even black and red/orange pheomelanin. The second one is mostly observed in red-headed which is caused by R allele...
December 22, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28006799/-i-cobitis-i-i-nalbanti-i-a-new-species-of-spined-loach-from-south-korea-and-redescription-of-i-cobitis-lutheri-i-teleostei-cobitidae
#20
Ekaterina D Vasil'eva, Daemin Kim, Victor P Vasil'ev, Myeong-Hun Ko, Yong-Jin Won
Cobitis nalbanti, new species, is described from the South Korean Han and Geum Rivers, draining to the Yellow Sea. It differs from its congeners by having a wide, ovoid lamina circularis; rounded scales with a large, slightly-displaced focal zone; a relatively long, protruded snout; the suborbital spine not reaching the center of the eye; the mandibular barbel not reaching the anterior edge of the eye; usually 12-14 dark brown blotches in the fourth Gambetta's zone; a single elongated black spot on the upper part of the caudal-fin base; the only streak on the head running from the tip of the snout to the nape, across the eye; 2n=48-51 and NF=66...
December 21, 2016: Zootaxa
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