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Veterinary Ophthalmology

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https://www.readbyqxmd.com/read/28508467/keratitis-due-to-microfilariae-in-dogs-a-newly-recognized-disease
#1
Adriana Morales, Eduardo Perlmann, Aline Nayara Vechiato Abelha, Carlos Emilio Levy, Ana Carolina Almeida de Goes, Angélica M V Safatle
Parasitic agents have been associated with keratitis, but a diagnosis of parasitic keratitis has not been commonly made in domestic animals. The purpose of this study was to describe the clinical and histopathological findings in seven dogs with chronic keratitis caused by microfilariae diagnosed in Brazil. All dogs presented with superficial corneal opacities of varying degrees affecting the perilimbal and central regions of the cornea, with other opaque areas appearing as crystalline deposits and corneal vascularization...
May 15, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28503796/influence-of-an-intentionally-induced-posterior-lens-capsule-rupture-on-the-real-time-intraocular-pressure-during-phacoemulsification-in-canine-ex-vivo-eyes
#2
Seonmi Kang, Sangwan Park, Eunjin Park, Jaegook Lim, Kangmoon Seo
OBJECTIVE: To evaluate the changes in the intraocular pressure (IOP) following an intentionally induced posterior lens capsule rupture (PLCR) during phacoemulsification in enucleated canine eyes. Furthermore, to compare the IOPs between different stages of phacoemulsification for two different bottle heights (BH). PROCEDURES: Coaxial phacoemulsification was performed using a venturi-based machine at a 60 or 90 cm BH. A pressure transducer, inserted into the anterior chamber through the peripheral cornea, monitored real-time IOP...
May 15, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28493440/tear-production-intraocular-pressure-and-conjunctival-bacterial-flora-in-selected-captive-wild-ruminants
#3
Pavel Kvapil, Tina Pirš, Brigita Slavec, Roman Luštrik, Tadej Zemljič, Eva Bártová, Bojana Stranjac, Marjan Kastelic
OBJECTIVE: Evaluation of tear production (Schirmer's tear test, STT) and measurement of intraocular pressure (IOP) were performed in a population of captive wild ungulates in a Slovenian ZOO during routine annual health check. ANIMALS STUDIED: In total, 10 fallow deer (Dama dama), 25 mouflons (Ovis aries musimon), 20 alpine ibexes (Capra ibex), and three alpine chamois (Rupicapra rupicapra) were included in the study. METHODS: Tear production was performed by Schirmer's tear test, IOP was measured with an applanation tonometer, and ophthalmological examination was conducted with slit-lamp biomicroscopy and indirect ophthalmoscopy...
May 11, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28493448/utility-of-an-immunocytochemical-assay-using-aqueous-humor-in-the-diagnosis-of-feline-infectious-peritonitis
#4
Sandra Felten, Kaspar Matiasek, Stefanie Gruendl, Laura Sangl, Katrin Hartmann
OBJECTIVE: In cats suffering from feline infectious peritonitis (FIP) without effusion, antemortem diagnosis is challenging. Uveitis is common in these cats. It was the aim of this study to evaluate sensitivity and specificity of an immunocytochemical assay (ICC) in aqueous humor of cats suspected of having FIP. ANIMALS STUDIED: The study included 26 cats with immunohistochemically confirmed FIP and 12 control cats for which FIP was suspected due to similar clinical or laboratory changes, but which suffered from other diseases confirmed via histopathology...
May 10, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28480600/ophthalmic-parameters-in-adult-lowland-paca-cuniculus-paca-raised-in-captivity
#5
Camila P Balthazar da Silveira, Tiago B Lima, Roberta M Crivelaro, Luciana C C de Lacerda, Ivan R M Pádua, Roberta Renzo, Alexandre A F de Barros Sobrinho, Fabrício S Oliveira, Marcela Aldrovani, José L Laus
OBJECTIVE: To investigate the ophthalmic parameters of lowland pacas, including the anatomic features, tear production, intraocular pressure, central corneal thickness, and morphology of the corneal endothelium. ANIMALS STUDIED: Thirteen adult, anesthetized Cuniculus paca. PROCEDURE: Eyes were evaluated using slit-lamp biomicroscopy, the Schirmer tear test I, digital applanation tonometry, binocular indirect ophthalmoscopy, and noncontact specular microscopy...
May 8, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28470741/canine-oral-mucosa-evaluation-as-a-potential-autograft-tissue-for-the-treatment-of-unresponsive-keratoconjunctivitis-sicca
#6
Rose L Cherry, Jodi D Smith, Gil Ben-Shlomo
PURPOSE: Labial mucosa transplantation for the treatment of canine keratoconjunctivitis sicca (KCS) has been reported recently. Postoperative alleviation of clinical signs was noted and assumed to be the result of labial salivary glands providing lubrication to the ocular tissue. The aim of this study was to evaluate the presence of minor salivary glands (MSG) in the canine oral mucosa. METHODS: Oral mucosal biopsies were collected from six dogs that died (n = 1) or were euthanized (n = 5) for reasons unrelated to this study...
May 4, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28444876/cataracts-in-a-population-of-bengal-cats-in-france
#7
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/28444838/modified-brow-suspension-technique-for-the-treatment-of-pseudoptosis-due-to-redundant-frontal-skin-in-the-dog-a-retrospective-study-of-25-cases
#8
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/28417524/biofilms-of-candida-spp-from-the-ocular-conjunctiva-of-horses-with-reduced-azole-susceptibility-a-complicating-factor-for-the-treatment-of-keratomycosis
#9
Raimunda Sâmia Nogueira Brilhante, Paula Vago Bittencourt, Débora de Souza Collares Castelo-Branco, Glaucia Morgana de Melo Guedes, Jonathas Sales de Oliveira, Lucas Pereira Alencar, Rossana de Aguiar Cordeiro, Mariana Pinheiro, Evilázio Fernandes Nogueira-Filho, Waldemiro de Aquino Pereira-Neto, José Júlio Costa Sidrim, Marcos Fábio Gadelha Rocha
OBJECTIVES: This study aimed to assess the biofilm-forming ability of Candida spp. from the ocular conjunctiva of horses and to investigate the antifungal susceptibility of these biofilms. PROCEDURES: Initially, the biofilm-forming ability of 15 strains was assessed by crystal violet staining, which reveals the fungal biomass adhered to the polystyrene plates, and scanning electron microscopy. Then, the minimum inhibitory concentrations (MICs) of amphotericin B, fluconazole, itraconazole, and caspofungin were initially determined against strains in planktonic form...
April 18, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28419669/recognizing-our-reviewers
#10
(no author information available yet)
No abstract text is available yet for this article.
April 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28378446/lack-of-consensus-on-consensual-response
#11
Tara M Stonex, Joshua T Bartoe, Gustavo D Aguirre
The pupillary light reflex (PLR) is a routinely utilized clinical test to quickly assess integrity of subcortical light perception pathways in patients. While interpretation is simple for ophthalmologists, interestingly discrepancy occurs in annotation of the test results, especially for the consensual response. An email survey sent to diplomates of either the American or European Colleges of Veterinary Ophthalmologists (ACVO and ECVO, respectively), requesting use of a 'direct/consensual' annotation convention, showed 58% of respondents preferred one convention while 39% preferred a different convention...
April 4, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28326663/a-morphometric-study-of-the-canine-skull-and-periorbita-and-its-implications-for-regional-ocular-anesthesia
#12
Paulo Roberto Klaumann, Juan Carlos Duque Moreno, Fabiano Montiani-Ferreira
OBJECTIVE: A hypothetical relationship between canine cranial length and the length of the periorbita could be used for intraconal anesthetic volume estimation. STUDY SUBJECTS: Forty-one canine cadaver heads and one macerated dog skull. PROCEDURES: Inion and nasion points were recognized in the macerated skull and used as landmarks for cranial length measure. Thirty cadavers classified as dolichocephalic, mesaticephalic and brachycephalic were distributed in three study groups...
March 22, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28303681/tonometer-validation-and-intraocular-pressure-reference-values-in-the-normal-chinchilla-chinchilla-lanigera
#13
Kevin C Snyder, Andrew C Lewin, Christoph Mans, Gillian J McLellan
OBJECTIVES: To determine accuracy and precision of three commonly used tonometers (TonoVet(®) and TonoLab(®) (ICare Oy, Finland)-rebound tonometers, and Tono-Pen VET™ (Reichert, NY)-applanation tonometer) in normal chinchillas, and to establish a normal intraocular pressure (IOP) reference range in this species. METHODS: The anterior chambers of three chinchilla eyes were cannulated ex vivo and readings obtained at manometric IOPs from 5 to 80 mmHg, using each of the three tonometers in random order...
March 17, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28295997/determination-of-schirmer-tear-test-1-values-in-clinically-normal-alpacas-vicug%C3%A3-a-pacos-in-north-america
#14
Jessica E McDonald, Amy M Knollinger, Darryl D Dees, Nicole E MacLaren
PURPOSE: To determine the normal reference range for Schirmer tear test-1 (STT-1) values in eyes of healthy alpacas (Vicugña pacos). METHODS: Complete ophthalmic examinations were performed on forty healthy alpacas (80 eyes). STT-1 values were obtained in both eyes of all alpacas using a commercial STT strip of a single lot number. Data were analyzed, using a doubly repeated measures ANOVA design, Student's paired t-test, and Pearson correlation test, with P ≤ 0...
March 14, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28294507/exophthalmos-due-to-sterile-neutrophilic-dermatosis-in-a-dog
#15
Emily K Sharpe, Jessica M Meekins, Mary Bagladi-Swanson, Amy J Rankin
An 8-year-old castrated male Bichon Frise was presented to the Kansas State University Veterinary Health Center for evaluation of unilateral right-sided exophthalmos, suspected secondary to a retrobulbar abscess. The dog had acutely developed right-sided periorbital swelling, exophthalmos with pain on retropulsion, as well as multiple cutaneous exudative plaques on the feet and tail base. On ophthalmic examination, the dog also exhibited mild left-sided exophthalmos with decreased, nonpainful retropulsion. Orbital ultrasound and CT were performed to evaluate the extent of bilateral orbital disease...
March 14, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28247535/factors-affecting-peer-reviewed-publication-of-abstracts-presented-at-meetings-of-the-european-college-of-veterinary-ophthalmologists-2008-2012
#16
Ron Ofri, Tali Bdolah-Abram, Nadav Yair
PURPOSE: To review abstracts presented at five consecutive meetings of the European College of Veterinary Ophthalmologists (ECVO), and identify abstract characteristics that affect the probability of their publication in peer-reviewed journals. METHODS: An online search was conducted for peer-reviewed publications (PRPs) stemming from abstracts from five ECVO meetings (2008-2012). Time to publication and journal were noted. Effects of ocular tissue/discipline, species, type of presentation and study, funding acknowledgment and affiliation, professional qualifications, and nationality of the first and last authors on probability of publication were analyzed...
March 1, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/28247466/intraocular-pressure-in-american-bullfrogs-rana-catesbeiana-measured-with-rebound-and-applanation-tonometry
#17
Sarah A Cannizzo, Gregory A Lewbart, Hans D Westermeyer
OBJECTIVE: To measure the intraocular pressure (IOP) in normal American Bullfrogs (Rana catesbeiana) with rebound and applanation tonometry and to create calibration curves for both tonometers to determine the actual IOP of bullfrogs. PROCEDURES: Twenty bullfrogs were evaluated with slip-lamp biomicroscopy, indirect ophthalmoscopy, rebound tonometry, and applanation tonometry. Axial globe length and corneal thickness were measured in the three largest and the three smallest frogs with ultrasonography and optical coherence tomography, respectively...
March 1, 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27471166/scotopic-electroretinography-in-fishing-cat-prionailurus-viverrinus-and-leopard-cat-prionailurus-bengalensis
#18
Metita Sussadee, Narathip Vorawattanatham, Anuchai Pinyopummin, Janjira Phavaphutanon, Aree Thayananuphat
OBJECTIVE: To establish baseline normal scotopic electroretinograpic (ERG) parameters for two wild cat species: fishing cats (FC) and leopard cats (LC). ANIMAL STUDIED: Twelve normal, FC and eight LC kept in the Chiang Mai Night Safari Zoo, Thailand. The mean ages of FC and LC were 7.08 and 5.00 years, respectively. PROCEDURE: All animals were studied using a standard scotopic protocol of a portable, handheld, multi-species electroretinography (HMsERG)...
May 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27302683/fundus-photography-with-a-smartphone-in-indirect-ophthalmoscopy-in-dogs-and-cats
#19
Nobuyuki Kanemaki, Mizuho Inaniwa, Kunihiko Terakado, Shinpei Kawarai, Yoichiro Ichikawa
OBJECTIVE: To introduce a simple method for fundus photography of dogs and cats using a smartphone and indirect ophthalmoscopy lenses. METHODS: Fundus photographs of dogs and cats with transparent ocular media were obtained with 15D, 20D, 28D, and 40D indirect lenses and an iPhone-6, in a dark room and after pharmacologic pupil dilation. The photographs were recorded as still images using a video application and a video-to-still image application. Two types of neutral density (ND) filters were used as required for reduction of the torch illumination power of the iPhone...
May 2017: Veterinary Ophthalmology
https://www.readbyqxmd.com/read/27302599/effect-of-prolonged-photoperiod-on-ocular-tissues-of-domestic-turkeys
#20
Marina L Leis, Mary-Magdalene U Dodd, Gregory Starrak, Catherine J Vermette, Susantha Gomis, Bianca S Bauer, Lynne S Sandmeyer, Karen Schwean-Lardner, Henry L Classen, Bruce H Grahn
OBJECTIVE: The objective of this study is to investigate the structural and functional ocular changes that develop in turkeys exposed to a photoperiod of 23 h of light (23L) compared with a photoperiod of 14 h of light (14L). PROCEDURES: Ten-day-old Nicholas heavy strain poults were exposed to either a 14L or 23L photoperiod. Between 16 and 18 weeks of age, equal numbers of turkeys per treatment group underwent ophthalmic examination (biomicroscopy, indirect ophthalmoscopy) (n = 14), refractometry (n = 20), keratometry (n = 20), tonometry (n = 20), and full-field electroretinography (ERG) (n = 14)...
May 2017: Veterinary Ophthalmology
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