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https://www.readbyqxmd.com/read/28445869/silicone-oil-related-visual-loss
#1
Hamouda Hamdy Ghoraba, Adel Galal Zaky, Mohamed Amin Heikal, Emad Eldin Mohamed Elgemai, Haithem Mamoun Abd Al Fatah
BACKGROUND: Silicone oil (SO) is used as an intravitreal tamponade agent in vitreoretinal surgery for rhegmatogenous retinal detachment (RRD) complicated by proliferative vitreoretinopathy or with large, multiple retinal tears. Usually, SO is left in the eye for at least 3 months. Although its use can lead to well-known complications, intraocular SO is generally well tolerated. Some studies have reported unexpected central vision loss after SO use or removal. OBJECTIVE: To investigate and analyze the reason for visual loss after the use or removal of intraocular SO in patients who underwent vitrectomy surgeries for RRD...
April 27, 2017: Ophthalmologica. Journal International D'ophtalmologie
https://www.readbyqxmd.com/read/28445831/carotenoids-in-the-treatment-of-diabetes-mellitus-and-its-complications-a-mechanistic-review
#2
REVIEW
Ali Roohbakhsh, Gholamreza Karimi, Mehrdad Iranshahi
Carotenoids are a large class of natural antioxidants that occur in many vegetables, foods and other natural sources. To date, a large number of biological properties have been reported from carotenoids, particularly protective effects against diabetes mellitus (DM), cancer, and neurodegenerative, metabolic and cardiovascular diseases. However, recent studies including clinical evidences, have shown that carotenoids play a role in the treatment of diabetes via enhancing insulin sensitivity. They are also able to protect the body from long-term consequences of diabetes including infectious diseases, nephropathy, neuronal and eye abnormalities...
April 23, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28445703/sensitivity-and-specificity-of-laser-scanning-in-vivo-confocal-microscopy-for-filamentous-fungal-keratitis-role-of-observer-experience
#3
Ahmad Kheirkhah, Zeba A Syed, Vannarut Satitpitakul, Sunali Goyal, Rodrigo Müller, Elmer Y Tu, Reza Dana
PURPOSE: To determine sensitivity and specificity of laser-scanning in vivo confocal microscopy (LS-IVCM) for detection of filamentous fungi in patients with microbial keratitis and to evaluate the effect of observer's imaging experience on these parameters. DESIGN: Retrospective, reliability study METHODS: This study included 21 patients with filamentous fungal keratitis and 24 patients with bacterial keratitis (as controls). The etiology of infection was confirmed based on the response to specific therapy regardless of culture results...
April 23, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28445553/a-novel-rat-head-gaze-determination-system-based-on-optomotor-responses
#4
Mengbo You, Toshiyuki Yamane, Hiroshi Tomita, Eriko Sugano, Takuya Akashi
The optomotor response of animals is commonly used to measure their visual performance, e.g., rats of different genetically altered strains or various drug tests. With the presentation of stimuli using computer screens or projectors, the common idea focuses on measuring the eye movement or head and/or body movement to characterize changes of the head gaze. However, traditional methods rely on either the invasive fixation of animals, or the judgment of a human observer who reports the stimulus-tracking movements...
2017: PloS One
https://www.readbyqxmd.com/read/28445315/the-effect-of-timolol-0-5-on-the-correction-of-myopic-regression-after-lasik
#5
Hong Qi, Caifeng Gao, Yaxin Li, Xue Feng, Miao Wang, Yu Zhang, Yueguo Chen
BACKGROUD: Postlaser in situ keratomileusis (post-LASIK) refractive regression is defined as the gradual, partial, or total loss of initial correction that limits the predictability, efficiency, and long-term stability of LASIK. Our study assesses the effect of Timolol 0.5% on the correction of myopic regression after LASIK. METHODS: This prospective, randomized, controlled study included 62 eyes of 62 patients with myopic regression of -1.18 ± 0.86 diopters (D) after myopic LASIK...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445211/polypoidal-choroidal-vasculopathy-associated-with-central-serous-chorioretinopathy-pachychoroid-spectrum-of-diseases
#6
George J Manayath, Vanee Sheth Shah, Veerappan R Saravanan, Venkatapathy Narendran
PURPOSE: To study multimodal imaging features of polypoidal choroidal vasculopathy (PCV) associated with central serous chorioretinopathy (CSC) in the same eye. METHODS: A retrospective observational study of cases of suspected PCV which underwent indocyanine green angiography, fundus fluorescein angiography and optical coherence tomography was done, to look for simultaneous typical CSC-like active leak in the same eye. The relevant history, best-corrected visual acuity, optical coherence tomography, fundus fluorescein angiography, and indocyanine green angiography findings were analyzed...
April 25, 2017: Retina
https://www.readbyqxmd.com/read/28445193/a-pilot-randomized-trial-on-safety-and-efficacy-of-a-novel-topical-combined-inhibitor-of-janus-kinase-1-3-and-spleen-tyrosine-kinase-for-gvhd-associated-ocular-surface-disease
#7
Ahmad Kheirkhah, Antonio Di Zazzo, Vannarut Satitpitakul, Merle Fernandez, Daniel Magilavy, Reza Dana
PURPOSE: Janus kinase (JAK) and spleen tyrosine kinase (SYK) play critical functions in T-cell activation and in inflammation. Because of their antiinflammatory effects, JAK and SYK inhibitors have recently been evaluated in several immunopathogenic disorders. This pilot study was designed to assess the safety and efficacy of a topical combined JAK/SYK inhibitor, R348, ophthalmic solution for treatment of ocular surface disease in graft-versus-host disease (GVHD). METHODS: This phase 2, double-masked, randomized, pilot trial included 30 patients with ocular surface disease due to GVHD who were randomized to receive topical 0...
April 25, 2017: Cornea
https://www.readbyqxmd.com/read/28445192/one-year-clinical-outcomes-of-a-corneal-inlay-for-presbyopia
#8
Sandra M C Beer, Rodrigo Santos, Eliane M Nakano, Flavio Hirai, Enrico J Nitschke, Claudia Francesconi, Mauro Campos
PURPOSE: To report the results of a 1-year follow-up analysis of the safety and efficacy of the Flexivue Microlens corneal inlay. METHODS: The Flexivue Microlens corneal inlay was implanted in the nondominant eye of patients with emmetropic presbyopia (a spherical equivalent of -0.5 to 1.00 diopter) after the creation of a 300-μm deep stromal pocket, using a femtosecond laser. The patients were followed up according to a clinical protocol involving refraction, anterior segment imaging analysis (Oculyzer), and optical quality analysis (OPD-Scan)...
April 25, 2017: Cornea
https://www.readbyqxmd.com/read/28445077/effect-of-epiretinal-membranes-on-antivascular-endothelial-growth-factor-treatment-for-neovascular-age-related-macular-degeneration
#9
Han Joo Cho, Jae Min Kim, Hyoung Seok Kim, Dong Won Lee, Chul Gu Kim, Jong Woo Kim
PURPOSE: To evaluate the effect of epiretinal membranes (ERMs), detected with spectral-domain optical coherence tomography (SD-OCT), on the outcome of antivascular endothelial growth factor (VEGF) treatment for neovascular age-related macular degeneration (nAMD). METHODS: A total of 434 eyes with treatment-naive nAMD were retrospectively included and analyzed. All patients were administered an initial series of 3 monthly loading injections of ranibizumab or aflibercept, followed by further injections as required...
April 26, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28444950/optical-coherence-tomography-evaluation-of-patients-with-macula-off-retinal-detachment-after-different-postoperative-posturing-a-randomized-pilot-study
#10
Enrico Peiretti, Francesco Nasini, Elisa Buschini, Giulia Caminiti, Sarit Y Lesnik Oberstein, Alissa Willig, Heico M Bijl, Marco Mura
PURPOSE: To assess the presence of outer and inner retinal folds (RFs) and drop-out of the ellipsoid zone (EZ) occurring after surgical repair of macula-off rhegmatogenous retinal detachment (RRD) with different postoperative posture and preoperative use of adjuvant perfluorocarbon liquid (PFCO). METHODS: In this prospective study, 56 eyes of 56 consecutive patients affected by RRD were subjected to 23- or 25-gauge pars plana vitrectomy (PPV). The patients were randomized in four groups (14 prone 5 hr without PFCO, 14 supine 5 hr without PFCO, 14 prone 5 hr with PFCO and 14 supine 5 hr with PFCO) and followed up with spectral domain optical coherence tomography (SD-OCT)...
April 26, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28444876/cataracts-in-a-population-of-bengal-cats-in-france
#11
Aurélie Bourguet, Gilles Chaudieu, Alice Briatta, Alexandre Guyonnet, Marie Abitbol, Sabine Chahory
OBJECTIVE: To document the clinical appearance and prevalence of cataracts in a French population of Bengal cats. METHODS: Two distinct populations of Bengal cats were examined as follows: (i) 51 animals recruited for evaluation of national prevalence of ocular diseases in an observational study conducted between October 2014 and November 2016 at the Alfort ophthalmology unit; (ii) 12 patients referred for cataract diagnosis examined at a veterinary eye clinic located in central France, between December 2014 and February 2016...
April 25, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28444874/prognostic-impact-of-chromosomal-aberrations-and-gnaq-gna11-and-bap1-mutations-in-uveal-melanoma
#12
Kjersti M Staby, Karsten Gravdal, Sverre J Mørk, Steffen Heegaard, Olav K Vintermyr, Jørgen Krohn
PURPOSE: To evaluate clinico-pathological and molecular prognostic factors in a well-defined series of posterior uveal melanoma (UM) with focus on chromosomal aberrations and mutations in the GNAQ, GNA11 and BRCA1-associated protein 1 (BAP1) genes. METHODS: Formalin-fixed paraffin-embedded (FFPE) tissue samples were obtained from 50 consecutive eyes enucleated for UM between 1993 and 2005. The material was tested for loss of chromosome 3 and gain of chromosome 8q gene signatures by selective molecular gene markers using multiplex ligation-dependent probe amplification (MLPA), and for DNA mutations in the GNAQ, GNA11 and BAP1 genes...
April 26, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28444838/modified-brow-suspension-technique-for-the-treatment-of-pseudoptosis-due-to-redundant-frontal-skin-in-the-dog-a-retrospective-study-of-25-cases
#13
Martí Cairó, Marta Leiva, Daniel Costa, Maria Teresa Peña
PURPOSE: To describe the outcome of modified brow suspension technique for the treatment of upper eyelid pseudoptosis in canine patients with redundant frontal skin folds. METHODS: Medical records from 1999 to 2015 were retrospectively reviewed. Only dogs that underwent modified brow suspension for treating bilateral pseudoptosis were included in the study. Recorded data included breed, age, gender, main ophthalmic complaint, ocular findings, suture material used for brow suspension, number of slings placed, postoperative treatment, complications, follow-up time, and outcome...
April 25, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28444837/prevalence-and-risk-factors-for-diabetic-retinopathy-in-17%C3%A2-152-patients-from-the-island-of-funen-denmark
#14
Morten B Larsen, Jan Erik Henriksen, Jakob Grauslund, Tunde Peto
PURPOSE: This study aims to estimate the prevalence and risk factors of diabetic retinopathy (DR) in patients enrolled in a large Danish quality-assuring database for diabetes: the Funen Diabetes Database (FDDB). METHODS: All patients with type 1 (T1DM) and type 2 DM (T2DM) diabetes mellitus (DM) were included in a cross-sectional study. The level of DR per patient was determined based on the eye with highest level of DR. All ocular and non-ocular data were extracted at the latest examination that corresponded to the most recent DR-grading data...
April 26, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28444834/direct-and-indirect-effects-of-attention-and-visual-function-on-gait-impairment-in-parkinson-s-disease-influence-of-task-and-turning
#15
Samuel Stuart, Brook Galna, Louise S Delicato, Sue Lord, Lynn Rochester
Gait impairment is a core feature of Parkinson's disease (PD) which has been linked to cognitive and visual deficits, but interactions between these features are poorly understood. Monitoring saccades allows investigation of real-time cognitive and visual processes and their impact on gait when walking. This study explored; 1) saccade frequency when walking under different attentional manipulations of turning and dual-task; and 2) direct and indirect relationships between saccades, gait impairment, vision and attention...
April 26, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28444824/a-comparison-between-patients-with-epiphora-and-cataract-of-the-activity-limitations-they-experience-in-daily-life-due-to-their-visual-disability
#16
Elin Bohman, Maria Wyon, Mats Lundström, Eva Dafgård Kopp
PURPOSE: The objective of this study was to compare patients with epiphora and cataract in terms of the activity limitations they experience in daily life due to their visual disability and to validate the use of the Catquest-9SF questionnaire for epiphora patients. METHODS: Seventy-two consecutively encountered adult patients with confirmed lacrimal obstruction and listed for dacryocystorhinostomy (DCR) or lacrimal intubation at the St. Erik Eye Hospital, Stockholm, Sweden, completed the Catquest-9SF questionnaire, which measures activity limitations in daily life due to visual disability...
April 26, 2017: Acta Ophthalmologica
https://www.readbyqxmd.com/read/28444788/night-sleep-in-patients-with-vegetative-state
#17
Yuri G Pavlov, Steffen Gais, Friedemann Müller, Monika Schönauer, Barbara Schäpers, Jan Born, Boris Kotchoubey
Polysomnographic recording of night sleep was carried out in 15 patients with the diagnosis vegetative state (syn. unresponsive wakefulness syndrome). Sleep scoring was performed by three raters, and confirmed by means of a spectral power analysis of the electroencephalogram, electrooculogram and electromyogram. All patients but one exhibited at least some signs of sleep. In particular, sleep stage N1 was found in 13 patients, N2 in 14 patients, N3 in nine patients, and rapid eye movement sleep in 10 patients...
April 26, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28444767/the-dual-orexin-receptor-antagonist-dora-22-lowers-histamine-levels-in-the-lateral-hypothalamus-and-prefrontal-cortex-without-lowering-hippocampal-acetylcholine
#18
Lihang Leon Yao, Andres Ramirez, Anthony J Roecker, Steven Fox, Jason Uslaner, Sean M Smith, Robert Hodgson, Paul J Coleman, John J Renger, Christopher J Winrow, Anthony L Gotter
Chronic insomnia is defined as a persistent difficulty with sleep initiation maintenance or non-restorative sleep. The therapeutic standard of care for this condition is treatment with gamma-aminobutyric acid (GABA)A receptor modulators, which promote sleep but are associated with a panoply of side effects, including cognitive and memory impairment. Dual orexin receptor antagonists (DORAs) have recently emerged as an alternative therapeutic approach that acts via a distinct and more selective wake-attenuating mechanism with the potential to be associated with milder side effects...
April 26, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28444634/watching-diagnoses-develop-eye-movements-reveal-symptom-processing-during-diagnostic-reasoning
#19
Agnes Scholz, Josef F Krems, Georg Jahn
Finding a probable explanation for observed symptoms is a highly complex task that draws on information retrieval from memory. Recent research suggests that observed symptoms are interpreted in a way that maximizes coherence for a single likely explanation. This becomes particularly clear if symptom sequences support more than one explanation. However, there are no existing process data available that allow coherence maximization to be traced in ambiguous diagnostic situations, where critical information has to be retrieved from memory...
April 25, 2017: Psychonomic Bulletin & Review
https://www.readbyqxmd.com/read/28444617/computational-theory-underlying-acute-vestibulo-ocular-reflex-motor-learning-with-cerebellar-long-term-depression-and-long-term-potentiation
#20
Keiichiro Inagaki, Yutaka Hirata
The vestibulo-ocular reflex (VOR) can be viewed as an adaptive control system that maintains compensatory eye movements during head motion. As the cerebellar flocculus is intimately involved in this adaptive motor control of the VOR, the VOR has been a popular model system for investigating cerebellar motor learning. Long-term depression (LTD) and long-term potentiation (LTP) at the parallel fiber-Purkinje cell synapses are considered to play major roles in cerebellar motor learning. A recent study using mutant mice demonstrated cerebellar motor learning with hampered LTD; the study concluded that the parallel fiber-Purkinje cell LTD is not essential...
April 25, 2017: Cerebellum
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