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https://www.readbyqxmd.com/read/28203189/a-mystery-of-bilateral-annular-choroidal-and-exudative-retinal-detachment-with-no-systemic-involvement-is-it-part-of-vogt-koyanagi-harada-disease-spectrum-or-a-new-entity
#1
Ibrahim Elaraoud, Walter Andreatta, Li Jiang, Kenan Damer, Jalil Al-Ibrahim
A 65-year-old Caucasian male presented to the eye emergency department with bilateral significant visual loss. He was otherwise healthy with no significant past medical history. Ophthalmic history was significant for chronic open-angle glaucoma, for which the patient was using latanoprost once daily to both eyes. There was no preceding history of trauma or ocular surgery and the patient was emmetropic. Two weeks prior to his presentation, he reported a headache, which settled spontaneously. Slit-lamp examination demonstrated bilateral keratic precipitates, bilateral significantly shallow anterior chamber, and bilaterally normal intraocular pressures of 16 mm Hg...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28202816/human-visual-search-behaviour-is-far-from-ideal
#2
Anna Nowakowska, Alasdair D F Clarke, Amelia R Hunt
Evolutionary pressures have made foraging behaviours highly efficient in many species. Eye movements during search present a useful instance of foraging behaviour in humans. We tested the efficiency of eye movements during search using homogeneous and heterogeneous arrays of line segments. The search target is visible in the periphery on the homogeneous array, but requires central vision to be detected on the heterogeneous array. For a compound search array that is heterogeneous on one side and homogeneous on the other, eye movements should be directed only to the heterogeneous side...
February 22, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28192592/an-algorithm-to-predict-the-biomechanical-stiffening-effect-in-corneal-cross-linking
#3
Sabine Kling, Farhad Hafezi
PURPOSE: To develop an algorithm to predict the stiffening effect of CXL and to verify the accuracy with results obtained from experimental measurements. METHODS: The algorithm considers different variables: the reaction kinetics of riboflavin diffusion and riboflavin photodegradation to determine the effective riboflavin concentration in different stromal layers; the oxygen diffusion and ultraviolet (UV) absorption to determine the amount of reactive oxygen species as a function of time and stromal depth...
February 1, 2017: Journal of Refractive Surgery
https://www.readbyqxmd.com/read/28183870/visual-acuity-in-ray-finned-fishes-correlates-with-eye-size-and-habitat
#4
Eleanor M Caves, Tracey T Sutton, Sönke Johnsen
Visual acuity (the ability to resolve spatial detail) is highly variable across fishes. However, little is known about the evolutionary pressures underlying this variation. We reviewed published literature to create an acuity database for 159 species of ray-finned fishes (Actinopterygii). Within a subset of those species for which we had phylogenetic information and anatomically-measured acuity data (n=81), we examined relationships between acuity and both morphological (eye size and body size) and ecological (light level, water turbidity, habitat spatial complexity, and diet) variables...
February 9, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28178303/differentiation-of-glaucomatous-optic-discs-with-different-appearances-using-optic-disc-topography-parameters-the-glaucoma-stereo-analysis-study
#5
Masaki Tanito, Koji Nitta, Maki Katai, Yasushi Kitaoka, Yu Yokoyama, Kazuko Omodaka, Toru Nakazawa
The Glaucoma Stereo Analysis Study (GSAS) is a multicenter collaborative study of the characteristics of glaucomatous optic disc morphology using a stereo fundus camera. Using GSAS dataset, the formulas for predicting different glaucomatous optic disc appearances were established. The GSAS dataset containing three-dimensionally-analyzed optic disc topographic parameters from 187 eyes with primary open-angle glaucoma was assessed with discrimination analyses to obtain formulas predictive of glaucomatous optic disc appearances: focal ischemic (FI); generalized enlargement (GE), myopic glaucomatous (MY), and senile sclerotic (SS)...
2017: PloS One
https://www.readbyqxmd.com/read/28167054/glaucoma-and-intraocular-pressure-in-patients-operated-for-late-in-the-bag-intraocular-lens-dislocation-a-randomized-clinical-trial
#6
Olav Kristianslund, Marianne Råen, Atle Einar Østern, Liv Drolsum
PURPOSE: To compare intraocular pressure (IOP) and IOP-lowering treatment requirements in patients with late in-the-bag intraocular lens (IOL) dislocation operated with 2 different methods, and to assess whether an IOP decrease after surgery can be expected. DESIGN: Prospective, randomized, parallel-group clinical trial. METHODS: In our university clinic, 104 patients (eyes) were randomly assigned to IOL repositioning by scleral suturing (n = 54) or IOL exchange with retropupillar iris-claw lens (n = 50)...
February 3, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28163860/refinement-of-intraocular-pressure-measurements-made-by-ocular-response-analyzer-following-laser-in-situ-keratomileusis-using-m2-90-moria-microkeratome-for-egyptian-myopic-and-astigmatic-patients
#7
Tamer Adel Refai, Olfat A Hassanin
INTRODUCTION: The Goldmann applanation tonometer readings were noted to be markedly reduced after Lasik surgery using a thin flap technique which is widely used nowadays, to correct a wide range of myopia and astigmatism. The Ocular Response Analyzer (ORA) is considered one of the important tools for refinement of Intraocular Pressure (IOP) measurements. The aim of this study is to evaluate and refine ORA measurements for IOP changes post- M2 90 Moria microkeratome Lasik procedure for Egyptian myopic and astigmatic patients trying to aid in glaucoma diagnosis and management...
December 2016: Electronic Physician
https://www.readbyqxmd.com/read/28162195/-comparison-of-the-effects-of-0-1-bromfenac-sodium-eye-drops-and-corticosteroids-after-small-incision-lenticule-extraction
#8
Y Jiang, Y Li, Y M Jin, J Y Zhang
Objective: To study the safety, efficacy and tolerability of the usage of 0.1% bromfenac sodium eye drops in small incision lenticule extraction (SMILE). Methods: Prospective case control study. Three groups were observed, including 60 patients (60 eyes) undergoing SMILE for myopia. After surgery, 20 patients (20 eyes) were treated with 0.1% bromfenac sodium eye drops twice daily for 10 days, 20 patients (20 eyes) were treated with topical compound tobramycin eye drops 4 times daily for 10 days, and 20 patients (20 eyes) were treated with topical compound tobramycin eye drops 4 times daily for 3 days and 0...
January 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28155692/fluid-and-structure-coupling-analysis-of-the-interaction-between-aqueous-humor-and-iris
#9
Wenjia Wang, Xiuqing Qian, Hongfang Song, Mindi Zhang, Zhicheng Liu
BACKGROUND: Glaucoma is the primary cause of irreversible blindness worldwide associated with high intraocular pressure (IOP). Elevated intraocular pressure will affect the normal aqueous humor outflow, resulting in deformation of iris. However, the deformation ability of iris is closely related to its material properties. Meanwhile, the passive deformation of the iris aggravates the pupillary block and angle closure. The nature of the interaction mechanism of iris deformation and aqueous humor fluid flow has not been fully understood and has been somewhat a controversial issue...
December 28, 2016: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28153055/high-prevalence-of-skin-and-wound-care-of-hospitalized-elderly-in-brazil-a-prospective-observational-study
#10
Carleara Ferreira da Rosa Silva, Rosimere Ferreira Santana, Beatriz Guitton Renaud Baptista de Oliveira, Thalita Gomes do Carmo
BACKGROUND: Skin changes caused by aging increase the risk of skin damages, such as pressure ulcers, during hospitalization of elderly patients. There is few information about the cost of wound treatment in Brazil. Conversely, skin and wound problems are highly reported among hospitalized elderly patients and caregivers. The purpose is to analyze the socio-demographic and clinical profile associated with skin and wound care in hospitalized elderly. METHODS: This is a prospective observational study...
February 2, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28149781/high-speed-small-gauge-anterior-vitrectomy-cutter-for-scleral-fixated-intraocular-lens-implantation
#11
Yuan Bo Liang, Yoly Y Y Fong, Lulu L Cheng, Alvin L Young
AIM: To report the outcomes of anterior vitrectomy using high speed cutter for scleral fixated intraocular lens (SFIOL) implantation in patients with posterior capsular rupture. METHODS: Medical records of 51 patients with posterior capsular rupture who received high speed cutter anterior vitrectomy via limbal incision with SFIOL implantation from June 2011 to December 2013 were reviewed retrospectively for visual outcomes and complications. RESULTS: Totally 51 eyes of 51 patients were identified (23 males and 28 females)...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/28149395/directional-measures-of-postural-sway-as-predictors-of-balance-instability-and-accidental-falls
#12
Błaszczyk W Janusz, Monika Beck, Justyna Szczepańska, Dorota Sadowska, Bogdan Bacik, Grzegorz Juras, Kajetan J Słomka
Despite the obvious advantages and popularity of static posturography, universal standards for posturographic tests have not been developed thus far. Most of the center-of-foot pressure (COP) indices are strongly dependent on an individual experimental design, and are susceptible to distortions, which makes results of their analysis incomparable. In this research, we present a novel approach to the analysis of the COP trajectory based on the directional features of postural sway. Our novel output measures: the sway directional indices (DI) and sway vector (SV) were applied to assess the postural stability in the group of young able-bodied subjects...
September 1, 2016: Journal of Human Kinetics
https://www.readbyqxmd.com/read/28147228/association-of-intraocular-pressure-iop-with-human-immunodeficiency-virus-hiv
#13
Matthew T Young, Rakhi T Melvani, Faraaz A Khan, Puneet S Braich, Surbhi Bansal
PURPOSE: Prior studies have shown an association between human immunodeficiency virus (HIV) and reduced intraocular pressures (IOP). The purpose of this study was to determine if patients with HIV on highly active antiretroviral therapy (HAART) had any difference in their IOP compared to patients without HIV or with HIV who are not on HAART. DESIGN: Retrospective cross sectional study. METHODS: We included 400 patients from our academic eye center between 2000 and 2016...
January 29, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28139518/corneal-biomechanical-parameters-and-asymmetric-visual-field-damage-in-patients-with-untreated-normal-tension-glaucoma
#14
Bai-Bing Li, Yu Cai, Ying-Zi Pan, Mei Li, Rong-Hua Qiao, Yuan Fang, Tian Tian
BACKGROUND: High intraocular pressure (IOP) and low central corneal thickness (CCT) are important validated risk factors for glaucoma, and some studies also have suggested that eyes with more deformable corneas may be in higher risk of the development and worsening of glaucoma. In the present study, we aimed to evaluate the association between corneal biomechanical parameters and asymmetric visual field (VF) damage using a Corvis-ST device in patients with untreated normal tension glaucoma (NTG)...
2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28138215/fellow-eye-in-unilateral-primary-congenital-glaucoma
#15
Nader Hl Bayoumi
AIM: This is a report of the incidence of bilateral cases in a cohort of primary congenital glaucoma (PCG) cases and a study of the biometric characteristics of the fellow normal eyes in unilateral cases. MATERIALS AND METHODS: The charts of 134 PCG children were reviewed, of which 78 cases (58.2%) were found to have bilateral disease. The remaining 56 patients (41.8%) with unilateral disease had their fellow normal eyes compared with an age-matched cohort of ophthalmologically free children...
January 2017: Journal of Current Glaucoma Practice
https://www.readbyqxmd.com/read/28135653/ocular-promoting-activity-of-grape-polyphenols-a-review
#16
REVIEW
Sithranga Boopathy Natarajan, Jin-Woo Hwang, Yon-Suk Kim, Eun-Kyung Kim, Pyo-Jam Park
The eye is a sensitive organ with complex optical system involves in the perception of light. Although it has several protective mechanisms by itself, various physiological and metabolic disorders are detrimental to the proper functioning of the visual system. Grape juice has long been used worldwide for its potent medicinal values including ocular promotion. Bioactivities of grape products are highly attributed to the presence of health promoting phytochemicals in them. Some phytochemicals present in the grape juice have been involved in the maintenance of intra-ocular pressure, regulation of glucose metabolisms and suppression of pro-inflammatory cytokines in the system...
December 9, 2016: Environmental Toxicology and Pharmacology
https://www.readbyqxmd.com/read/28129671/glymphatic-stasis-at-the-site-of-the-lamina-cribrosa-as-a-potential-mechanism-underlying-open-angle-glaucoma
#17
REVIEW
Peter Wostyn, Hanspeter E Killer, Peter Paul De Deyn
The underlying pathophysiology of primary open-angle glaucoma remains unclear, but the lamina cribrosa seems to be the primary site of injury and raised intraocular pressure is a major risk factor. In recent years, a decreased intracranial pressure, leading to an abnormally high trans-lamina cribrosa pressure difference, has gained interest as a new risk factor for glaucoma. New research now lends support to the hypothesis that a paravascular transport system is present in the eye analogous to the recently discovered 'glymphatic system' in the brain, which is a functional waste clearance pathway that promotes elimination of interstitial solutes, including amyloid-β, from the brain along paravascular channels...
January 27, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28126564/spontaneous-eye-blink-rate-ebr-predicts-poor-performance-in-high-stakes-situations
#18
Ilse H van de Groep, Lucas M de Haas, Iris Schutte, Erik Bijleveld
Although the existence of 'choking under pressure' is well-supported by research, its biological underpinnings are less clear. In this research, we examined two individual difference variables that may predict whether people are likely to perform poorly in high-incentive conditions: baseline eye blink rate (EBR; reflecting dopamine system functioning) and baseline anterior hemispheric asymmetry (an indicator of goal-directed vs. stimulus driven processing). Participants conducted a switch task under control vs...
January 23, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28123247/anterior-segment-changes-on-ultrasound-biomicroscopy-after-intravitreal-anti-vascular-endothelial-growth-factor-injection
#19
H S Trehan, Jaya Kaushik, Atul Rangi, A S Parihar, P Vashisht, J K S Parihar
BACKGROUND: Intravitreal injections are standard of care today and have the potential to change the anatomy of the anterior segment of the eye. This research was undertaken to evaluate the changes in anterior segment anatomy after intravitreal anti vascular endothelial growth factor (anti VEGF) injections. METHODS: We conducted a prospective interventional case series at a quaternary care center where patients undergoing intravitreal injection had pre and post injection ultrasound biomicroscopy (UBM) and intraocular pressure (IOP) measurement after intravitreal anti VEGF injection of 0...
January 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28122126/neuroprotection-for-treatment-of-glaucoma-in-adults
#20
REVIEW
Dayse F Sena, Kristina Lindsley
BACKGROUND: Glaucoma is a heterogeneous group of conditions involving progressive damage to the optic nerve, deterioration of retinal ganglion cells, and ultimately visual field loss. It is a leading cause of blindness worldwide. Open angle glaucoma (OAG), the most common form of glaucoma, is a chronic condition that may or may not present with increased intraocular pressure (IOP). Neuroprotection for glaucoma refers to any intervention intended to prevent optic nerve damage or cell death...
January 25, 2017: Cochrane Database of Systematic Reviews
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