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Ocular blood

L Hu, X P Shu, Y Y Xu, J Cheng, Z Q Xu, J H Wang, F Lyu
Objective: To explore the changes of microcirculation of the bulbar conjunctiva after wearing the contact lens and the relationship between contact lens discomfort and bulbar conjunctiva microcirculation. Methods: Prospective cohort study. The postgraduate students from School of Ophthalmology & Optometry and School of Biomedical Engineering of Wenzhou Medical University were included in this prospective cohort study. The subjects wore soft contact lenses, and the right eye was selected as the experimental eye...
February 11, 2019: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
François Enchery, Claude Hamers, Olivier Kwiatek, Daniel Gaillardet, Camille Montange, Hervé Brunel, Sylvain Goutebroze, Corinne Philippe-Reversat, Geneviève Libeau, Pascal Hudelet, Arnaud Bataille
Peste des Petits Ruminants (PPR) is a severe disease of small ruminants and has high economic impacts in developing countries. Endemic in Africa, the Middle East and Asia, the disease is currently progressing with occurrences reported in North Africa, Turkey and in Georgia, and now threatens Europe. Much remains unknown about the infection dynamics, the virulence of the different strains and species/breed susceptibility. Robust experimental challenge models are needed to explore these fields and to confirm the efficacy of currently sold vaccines...
February 13, 2019: Vaccine
Zhirong Wang, Limei Sun, Panfeng Wang, Chonglin Chen, Aiyuan Zhang, Weiqing Wang, Xiaoyan Ding
BACKGROUND: Oculodentodigitaldysplasia (ODDD; MIM no. 164200) is a rare hereditary disorder caused by mutations in the gene GJA1.Ocular disorders included microcornea, cornea opacity and glaucoma. However, few studies described fundus findings. MATERIALS AND METHODS: Ophthalmic examination included visual acuity measurement, intraocular pressure (IOP) measurements, slit-lamp biomicroscopy, B-scan ultrasonography, Ultrasound biomicroscopy (UBM), spectral-domain optical coherence tomography (SD-OCT), ERG and retcam fluorescein angiogram...
February 15, 2019: Ophthalmic Genetics
Angi Diana Eibl, Hans-Georg Predel, Tanja Sanders, Jonas Zacher
Neuronal blood pressure control is mediated by the autonomic nervous system. In this article, physiological and pathophysiological mechanisms will be recapitulated. Blood pressure regulation aims at maintaining adequate cardiac output and a sufficient perfusion pressure for the organs. In glaucoma, ocular perfusion pressure is defined as the difference between systemic blood pressure and intraocular pressure and is crucial for the supply of the optic nerve. Patients who suffer from normal-tension glaucoma and low blood pressure are at risk of glaucoma progression...
February 2019: Klinische Monatsblätter Für Augenheilkunde
Jenny Carter
PRACTICAL RELEVANCE: Systemic hypertension is common in older cats and can result in damage to organs with a rich arteriolar supply such as the eyes, kidneys, myocardium and brain. Hypertensive disease in these organs is known as target organ damage (TOD). Disease in the eye resulting from hypertension is the most easily identifiable form of TOD and can often be the reason the cat is presented to the veterinarian. Routine blood pressure measurement and fundic examination allows cats with hypertensive ocular lesions to be detected early in the course of the disease, when the lesions have the best chance of responding to treatment...
January 2019: Journal of Feline Medicine and Surgery
Barbara Terelak-Borys, Iwona Grabska-Liberek, Andreas Schoetzau, Katarzyna Konieczka
BACKGROUND: It is still debatable whether visual field defects in glaucoma have a reversible component and to what extent a temporary loss can be provoked. OBJECTIVE: To investigate the response of the visual function to a cold provocation in glaucoma patients, particularly to test whether subjects with Flammer syndrome (FS) behaved differently from subjects without FS. METHODS: Ten (10) primary open-angle glaucoma (POAG) patients with FS, 7 POAG patients without FS, and 11 healthy controls were tested with program G2 on the Octopus 101 perimeter before and after putting one hand in cold water (4°C) for 2 min...
February 5, 2019: Restorative Neurology and Neuroscience
Alessandro Invernizzi, Mariano Cozzi, Giovanni Staurenghi
Optical coherence tomography (OCT) has dramatically changed the understanding and management of uveitis and other ocular conditions. Currently, OCT angiography (OCTA) combines structural information with the visualization of blood flow within the imaged area. The aim of this review is to present the basic principles of OCT and OCTA interpretation and to investigate the role of these imaging techniques in the diagnosis and management of uveitis. Common complications of intraocular inflammation such as macular edema and inflammatory choroidal neovascularization are often diagnosed and followed with OCT/OCTA scans...
February 4, 2019: Clinical & Experimental Ophthalmology
Anh Lan Thi Luong, Thuong Thi Ho, Ha Hoang, Trung Quang Nguyen, Tu Cam Ho, Phan Duc Tran, Thuy Thi Hoang, Nam Trung Nguyen, Hoang Ha Chu
Crouzon syndrome is a rare autosomal dominant genetic disorder, which causes the premature fusion of the cranial suture. Fibroblast growth factor receptor 2 (FGFR2) mutations are well-known causatives of Crouzon syndrome. The current study aimed to assess the FGFR2 gene associated with Crouzon syndrome in a Vietnamese family of three generations and to characterize their associated clinical features. The family included in the present study underwent complete clinical examination. A patient was clinically examined and presented with typical features of Crouzon syndrome including craniosynostosis, shallow orbits, ocular proptosis and midface hypoplasia...
February 2019: Biomedical Reports
Kazuaki Sato, Kiwako Iwasaki, Noriaki Nagai, Yohei Yamashita, Seishiro Chikazawa, Fumio Hoshi, Kazutaka Kanai
OBJECTIVE: We investigated the early posttreatment effects of two steroidal anti-inflammatory ophthalmic drugs on blood-aqueous barrier (BAB) breakdown by paracentesis in dogs. ANIMAL STUDIES: We studied 21 healthy beagles with normal eyes. PROCEDURES: Controlled anterior chamber paracentesis (0.5 mL) was performed in one eye of each dog. Control group dogs (n = 7) received no medication, whereas those in the treatment groups received a topical anti-inflammatory medication (difluprednate [DFBA] ophthalmic emulsion 0...
February 4, 2019: Veterinary Ophthalmology
Lisa-Marie Muellerleile, Alexander Tichy, Barbara Nell
OBJECTIVE: To evaluate ocular and general safety of topical anti-human VEGF bevacizumab and the effect on serum vascular endothelial growth factor (VEGF) values in healthy dogs. PROCEDURES: Nine university-owned beagles received 0.05 mL of 0.25% bevacizumab eyedrops (Avastin® , Roche) in one eye and 0.05 mL of 0.9% saline solution in the other eye as a control, administered at 12 hours intervals over a period of 28 days. Continuous monitoring for vital parameters and ocular examinations were conducted...
February 4, 2019: Veterinary Ophthalmology
Iku Kikuchi, Satoru Kase, Yuki Hashimoto, Kiriko Hirooka, Susumu Ishida
PURPOSE: This study aims to examine the relationship between ocular circulation changes and visual field defects in optic disk melanocytoma (ODM). METHODS: Five eyes of five patients were enrolled in this study. All patients were diagnosed with ODM in the Department of Ophthalmology, Hokkaido University Hospital from March 2009 to November 2017. Ophthalmological data including optical coherence tomography angiography (OCTA) and laser speckle flowgraphy (LSFG) findings were retrospectively analyzed...
February 4, 2019: Graefe's Archive for Clinical and Experimental Ophthalmology
Shuai Shi, Fangli Peng, Qianqian Zheng, Li Zeng, Hao Chen, Xingyi Li, Jinhai Huang
The development of new blood vessels is directly related to the occurrence of eye diseases. Anti-angiogenic drugs can theoretically be extended to the treatment of ophthalmic diseases. In this study, axitinib, a class of tyrosine kinase inhibitors, was loaded via the amphiphilic copolymer MPEG-PCL, improving its dispersibility in water. Axitinib-loaded micelles showed low toxicity in concentration gradient assays. Additionally, multiple doses by scratch assay confirmed that axitinib had no significant effect on normal cell migration, and biosafety test results showed good cell compatibility...
January 30, 2019: International Journal of Pharmaceutics
Rodiah Rahmawaty Lubis, Marina Yusnita Albar, Dewi Masyithah Darlan
Purpose: Orbital myiasis is a rare condition. We report a case of massive orbital myiasis (ophthalmomyiasis profunda) arising from nasal myiasis and caused by Chrysomya bezziana in a patient with diabetes. Observations: A 55-year-old woman presented with massive orbital myiasis from larvae invading the entire orbit, with only a small part of sclera and bulbar conjunctiva left of the ocular structures left unaffected. The patient complained of breathing difficulty and drooping of the left eyelid with no other significant complaints...
March 2019: American Journal of Ophthalmology Case Reports
Philip Riedl, Dragana Škiljić, Per Arnell, Roger Wannholt, Madeleine Zetterberg, Marita Andersson Grönlund
PURPOSE: To examine visual acuity, refraction and ocular status before, during and after hyperbaric oxygen therapy (HBOT). METHODS: Twenty-nine patients underwent 40 standard protocol HBOT treatments. In all subjects, refraction and best corrected visual acuity were measured at baseline and after ten, 20, 30 and 40 treatments, and at a 12-week follow-up. A subgroup (n = 19) were given additional examinations at baseline, after 40 treatments and at follow-up including measuring central corneal thickness (CCT), corneal curvature, anterior chamber depth, lens thickness, axial length, fundus morphology, blood pressure and intraocular pressure (IOP)...
January 28, 2019: Acta Ophthalmologica
Jessica S Kim, Catherine E Oldenburg, Gretchen Cooley, Abdou Amza, Boubacar Kadri, Baido Nassirou, Sun Yu Cotter, Nicole E Stoller, Sheila K West, Robin L Bailey, Jeremy D Keenan, Bruce D Gaynor, Travis C Porco, Thomas M Lietman, Diana L Martin
BACKGROUND: Program decision-making for trachoma elimination currently relies on conjunctival clinical signs. Antibody tests may provide additional information on the epidemiology of trachoma, particularly in regions where it is disappearing or elimination targets have been met. METHODS: A cluster-randomized trial of mass azithromycin distribution strategies for trachoma elimination was conducted over three years in a mesoendemic region of Niger. Dried blood spots were collected from a random sample of children aged 1-5 years in each of 24 study communities at 36 months after initiation of the intervention...
January 28, 2019: PLoS Neglected Tropical Diseases
A O Eballé, A Ellong, R E Wang, C Y Mbakop, A L Bella, C E Mvogo
Meibomian gland dysfunction is the leading cause of evaporative-type dry eye syndrome. Our goal was to determine the epidemiological and clinical features of meibomian gland dysfunction as well as its impact on the ocular surface in elderly black patients in Cameroon. PATIENTS AND METHODS: We performed a cross-sectional analysis from January 2 through May 31, 2017 in the ophthalmology department of Laquintinie Hospital in Douala, including blacks aged 50 years and older. The examination focused on the Meibomian glands, Tear film Break Up Time and Schirmer I test for qualitative and quantitative assessment of tears...
January 22, 2019: Journal Français D'ophtalmologie
Alejandra de-la-Torre, Juanita Valdés-Camacho, Clara López de Mesa, Andrés Uauy-Nazal, Juan David Zuluaga, Lina María Ramírez-Páez, Felipe Durán, Elizabeth Torres-Morales, Jessica Triviño, Mateo Murillo, Alba Cristina Peñaranda, Juan Carlos Sepúlveda-Arias, Jorge Enrique Gómez-Marín
BACKGROUND: Making a definite diagnosis of infectious uveitis is a challenging task because many other infectious, and non-infectious uveitis, may have similar non-specific symptoms and overlapping clinical appearances. Co-infections in immunocompetent patients are not frequently proved with traditional serologic-diagnostic tools. METHODS: Descriptive transversal study, in a Uveitis Service of an Ophthalmology Reference Center, in Bogotá, Colombia, from July 2014 to February 2016...
January 25, 2019: BMC Infectious Diseases
Caroline Agnelli, Maricela Valerio, Emilio Bouza, Antonio Vena, Jesús Guinea, María Del Carmen Martínez-Jiménez, Laura Judith Marcos-Zambrano, Pilar Escribano, Patricia Muñoz
To investigate the causes and the clinical significance of persistent candidemia (PC) in adults diagnosed in a tertiary hospital with an active antifungal stewardship program. Retrospective cohort including all adults with candidemia from 2010 to 2018. PC was defined as any positive follow-up blood culture (BC) obtained ≥ 5 days from the first BCs yielding the same Candida species. PC was detected in 35/255 (13.7%) patients. There were no differences regarding antifungal adequacy in PC vs. non-PC (94.3% vs...
January 24, 2019: European Journal of Clinical Microbiology & Infectious Diseases
María Linares, María Postigo, Daniel Cuadrado, Alejandra Ortiz-Ruiz, Sara Gil-Casanova, Alexander Vladimirov, Jaime García-Villena, José María Nuñez-Escobedo, Joaquín Martínez-López, José Miguel Rubio, María Jesús Ledesma-Carbayo, Andrés Santos, Quique Bassat, Miguel Luengo-Oroz
BACKGROUND: Current World Health Organization recommendations for the management of malaria include the need for a parasitological confirmation prior to triggering appropriate treatment. The use of rapid diagnostic tests (RDTs) for malaria has contributed to a better infection recognition and a more targeted treatment. Nevertheless, low-density infections and parasites that fail to produce HRP2 can cause false-negative RDT results. Microscopy has traditionally been the methodology most commonly used to quantify malaria and characterize the infecting species, but the wider use of this technique remains challenging, as it requires trained personnel and processing capacity...
January 24, 2019: Malaria Journal
Bláithín Ní Bhuachalla, Christine A McGarrigle, Neil O'Leary, Kwadwo Owusu Akuffo, Tunde Peto, Stephen Beatty, Rose Anne Kenny
BACKGROUND: Hypertension is established to cause vascular end-organ damage. Other forms of dysregulated blood pressure (BP) behaviour, such as orthostatic hypotension have also been associated with cardiovascular (CV) events. The eye is potentially vulnerable to dysregulated systemic BP if ocular circulation autoregulation is impaired. We investigated whether phenotypes of abnormal BP stabilisation after orthostasis, an autonomic stressor, had a relationship with contrast sensitivity (CS), an outcome measure of subtle psychophysical visual function...
January 21, 2019: Experimental Gerontology
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