Veterinary ophthalmology最新文献

{"title":"Ophthalmic findings and parameters in Western tiger salamanders (Ambystoma mavortium) from northern Colorado","authors":"Kyle J. Kansman, Miranda J. Sadar, Joshua B. Daniels, Eric Klaphake, Michala de Linde Henriksen","doi":"10.1111/vop.13216","DOIUrl":"https://doi.org/10.1111/vop.13216","url":null,"abstract":"ObjectiveThe aim of this study was to document ophthalmic examination findings and provide reference values for ocular examinations and diagnostics in clinically normal Western tiger salamanders (<jats:italic>Ambystoma mavortium</jats:italic>) and to evaluate the mydriatic effect of a topical rocuronium bromide and identify any adverse effects.Animals StudiedSixteen Western tiger salamanders.ProcedureA complete ophthalmic examination, including intraocular pressure via rebound tonometry [iCare® TonoVet (dog‐setting) or iCare® TonoVet Plus (dog‐setting)], and fluorescein and Rose Bengal stains, was performed. Ocular surface flora culture swabs were collected for microbiology in four salamanders. Rocuronium bromide (50 μL; 0.01 mg) was administered into each eye in three salamanders. Pupil size and constriction ability were evaluated up to 60 min following administration of rocuronium bromide. Distant visual examination and Doppler heart rate were used to monitor for potential adverse effects of rocuronium bromide.ResultsObserved ocular abnormalities included lipid keratopathy/keratitis (19%; 3/16), parasitic ophthalmitis (19%; 3/16), and cataracts (6.3%; 1/16). A significant difference was found between tonometry with iCare® TonoVet (11.5 ± 2.7 mmHg) versus TonoVet Plus (15.4 ± 3.7 mmHg) (<jats:italic>p</jats:italic> = .025). Fluorescein and Rose Bengal stains were negative in all salamanders. Ocular surface microbiology revealed a high incidence of contamination from environmental flora, with the most common isolate being unidentified as Gram‐negative nonfermenters (75%; 3/4). No significant change in pupil size or constriction ability was observed with rocuronium bromide.ConclusionThis is the first study to document ocular examination findings and diagnostics in captive and wild urodeles and may serve as a reference for clinical assessment and future studies of the Western tiger salamander.","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140578275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Validation of the eyeTelemed IOPvet indentation tonometer for use in dogs.","authors":"Lydia E Kapeller, Ava G Cabble, Phillip N Buckman, Christine D Harman, Amanda L Jacobson, Frank R Lawrence, András M Komáromy","doi":"10.1111/vop.13215","DOIUrl":"10.1111/vop.13215","url":null,"abstract":"<p><strong>Objective: </strong>To assess the accuracy of canine intraocular pressure (IOP) estimates from the eyeTelemed IOPvet indentation tonometer.</p><p><strong>Animals studied: </strong>Part 1 included 54 eyes from 28 Beagle dogs-23 ADAMTS10-mutants with open-angle glaucoma and 5 normals. Part 2 involved five normal canine ex vivo globes.</p><p><strong>Procedure: </strong>Part 1 (in vivo) compared IOPvet estimates in normal and glaucomatous dogs to Reichert Tono-Vera® Vet rebound tonometry. The three IOPvet estimates were green (normal; <20 mmHg, according to the manufacturer), yellow (elevated; 20-30 mmHg), and red (high; >30 mmHg). In Part 2 (ex vivo), the pressure inside freshly enucleated normal canine eyes was progressively increased from 5 to 80 mmHg and compared to IOPvet estimates. Descriptive statistics compared IOPvet estimates to rebound tonometry and direct manometry, with the threshold from normal to glaucoma set at 30 mmHg.</p><p><strong>Results: </strong>In Part 1 (in vivo), normal pressures (≤30 mmHg) were mainly identified correctly as green or yellow-110 of 111 estimates, corresponding to a specificity of 99%. Only 16 of 125 affected estimates were correctly displayed in the >30-mmHg range; the remaining 109 showed ≤30 mmHg, corresponding to a sensitivity of 13%. In Part 2 (ex vivo), all normal pressures were correctly estimated with green, but 64 of 88 manometric IOPs >30 mmHg were falsely estimated as 20-30 mmHg.</p><p><strong>Conclusions: </strong>The IOPvet is inaccurate in estimating canine IOP with a low sensitivity at identifying dogs with IOP > 30 mmHg. Canine-specific instrument revision is required to correctly identify elevated (yellow = 20-30 mmHg) and high (red >30 mmHg) IOPs.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11445399/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140336954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Poster Abstracts: 53rd Annual Meeting of the American College of Veterinary Ophthalmologists, Palm Springs, CA, USA October 26-29, 2022.","authors":"","doi":"10.1111/vop.13195","DOIUrl":"https://doi.org/10.1111/vop.13195","url":null,"abstract":"","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140337015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diamond burr debridement of calcific band keratopathy in 24 eyes of 22 horses.","authors":"Sophie Jugant, Alain Regnier, Jean-Yves Douet","doi":"10.1111/vop.13212","DOIUrl":"https://doi.org/10.1111/vop.13212","url":null,"abstract":"<p><strong>Purpose: </strong>To evaluate the safety and effectiveness of diamond burr debridement (DBD) for the treatment of calcific band keratopathy (CBK) in horses.</p><p><strong>Methods: </strong>Medical records from horses with CBK were reviewed over a period of 4 years. Diagnosis of CBK was based on slit-lamp examination findings, and DBD was performed on standing sedated horses. Follow-up was obtained by clinical reevaluation of the treated eyes or a telephone survey with the referring veterinarian.</p><p><strong>Results: </strong>Twenty-two horses of different ages (median: 11 years; range: 5-23) representing 24 CBK-affected eyes (14 left eyes and 10 right eyes) were included in the study. The patients had a medical history of chronic and recurrent uveitis, which required repeated long-term treatments with various combinations of ophthalmic corticosteroids. DBD alone cleared the cornea in 22 affected eyes (92%), but it was combined with blade scraping in two cases with thick calcium plaques. The postoperative medication included a topical antibiotic, atropine drops, and oral flunixin meglumine. Corneal healing was achieved in 21 eyes (87%), 5-21 days (median time 13 days) postoperatively. The three remaining horses were lost to follow-up. Recurrence occurred in 5 of the 21 (24%) reexamined eyes, 3-12.5 weeks (median 8 weeks) postoperatively, and required a second DBD. Four of the 21 eyes ended up being enucleated due to sequelae of uveitis. The main limitations of the study include those inherent to all retrospective clinical data collections.</p><p><strong>Conclusion: </strong>Mechanical DBD can readily and safely clear the cornea in horses with CBK, but recurrence of calcium deposition is possible.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140289104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparison of conjunctival pedicle flap to corneal fixation strength achieved by Tisseel® fibrin glue, ethyl cyanoacrylate adhesive, ReSure® hydrogel sealant, and conventional suturing with 8-0 VICRYL® ophthalmic suture.","authors":"Elodie M VerHulst, Roxanne M Rodriguez Galarza, Ian P Herring, Renata Velloso Ramos, Andrew R Kemper","doi":"10.1111/vop.13197","DOIUrl":"https://doi.org/10.1111/vop.13197","url":null,"abstract":"<p><strong>Objective: </strong>To determine and compare the fixation strength of conjunctival pedicle flaps to cornea achieved via conventional ophthalmic suture and three different adhesive compounds.</p><p><strong>Animals studied: </strong>Ex vivo porcine globes.</p><p><strong>Procedures: </strong>Following a 6 mm wide 500-micron-restricted depth lamellar keratectomy, conjunctival pedicle flaps were secured to the keratectomy site with either 8-0 VICRYL® suture or one of three adhesive products, including Tisseel® bioadhesive, ReSure® synthetic adhesive, or ethyl cyanoacrylate adhesive (n = 10 per surgical group). Adhesive application protocol varied by product based upon adhesive biocompatibility. Corneoconjunctival tissues were then harvested, clamped in a tensile testing device, and loaded at a rate of 1 mm/s under video surveillance until the point of failure. Peak load was determined for each test and used to compare fixation strength between samples.</p><p><strong>Results: </strong>Forty conjunctival flaps were performed, with 6 omitted from evaluation due to dehiscence prior to tensile testing. Of the 34 flaps analyzed, 10 were secured with suture, 10 with cyanoacrylate, 8 with ReSure®, and 6 with Tisseel®. Flaps secured with suture withstood significantly higher applied tensile force compared with cyanoacrylate (p = .02474), ReSure® (p = .00000), and Tisseel® (p = .00002). Flaps secured with cyanoacrylate withstood significantly greater force than those secured with ReSure® and Tisseel® (p = .01194 and 0.01798, respectively). There was no significant difference in fixation strength between ReSure® and Tisseel® glue (p = .95675).</p><p><strong>Conclusions: </strong>Conjunctival pedicle flap fixation using 8-0 VICRYL® suture fixation was able to withstand significantly greater maximum tensile force compared to ReSure®, Tisseel®, or cyanoacrylate adhesives. Fixation strength achieved with cyanoacrylate adhesive was significantly greater than that achieved with ReSure® or Tisseel®.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140289103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Intraocular Parafilaria bovicola infection and surgical removal in a mixed breed heifer.","authors":"A K Shukla, A Contadini, K Kazmir-Lysak, M Schnyder, C Gerspach, S A Pot","doi":"10.1111/vop.13211","DOIUrl":"https://doi.org/10.1111/vop.13211","url":null,"abstract":"<p><p>An approximately 1.5-year-old mixed breed heifer was presented for evaluation and treatment due to ocular pain affecting the right eye secondary to a live nematode within the anterior chamber. Ophthalmic examination revealed marked blepharospasm, evidence of chronic keratitis, uveitis, and a single, white, approximately 2.5 cm long, 0.5 mm thick, living parasite. The heifer underwent general anesthesia, and the parasite was removed using passive aqueous humor outflow following a stab incision into the anterior chamber. Twenty-four hours after removal of the intraocular parasite, the heifer displayed a significant improvement in ocular comfort, corneal edema, and uveitis. The nematode was identified via genetic analyses as Parafilaria bovicola, a filarial parasite of cattle. The heifer was discharged 5 days following nematode removal with a marked improvement in all ocular signs and apparently normal vision. To the authors' knowledge, there are no previous reports of confirmed intraocular filariosis caused by P. bovicola in the veterinary literature, nor are there reports detailing surgical removal of intraocular parasites in bovids.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140194709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional cataracts in a wolf litter treated by phacoemulsification.","authors":"Maria Cabrero, Alexandre Guyonnet, Emmanuel Risi, Aurelie Bourguet","doi":"10.1111/vop.13206","DOIUrl":"https://doi.org/10.1111/vop.13206","url":null,"abstract":"<p><strong>Objective: </strong>To describe the clinical findings in a wolf litter with nutritional cataracts and determine the treatment outcomes after phacoemulsification.</p><p><strong>Procedure: </strong>Bilateral nutritional cataracts were diagnosed in four hand-fed 10-week-old wolves (Canis lupus). The information collected included signalment, physical and ophthalmic examination findings, ocular ultrasonography and electroretinography results, and postoperative outcomes.</p><p><strong>Results: </strong>All four wolves were rejected from the dam and hand raised with a commercial artificial milk replacer from 5 days of age until weaning at 6 weeks of age. At initial presentation, bilateral cataracts were observed in all patients (8/8 eyes), with vision deficits in three of the four wolves. The main ophthalmic anomalies were mature cataracts with lens-induced uveitis (3/8 eyes, two wolves), immature cataracts (1/8 eyes, one wolf), and perinuclear and posterior cortical/subcapsular lens opacities (4/8 eyes, three wolves). Three of the four wolves (six eyes) underwent bilateral one-handed phacoemulsification with intraocular lens implantation. At the last examination 2 months following surgery, all operated eyes (6/6) were visual, Elschnig pearl proliferation was present in 2/6 eyes, and mild posterior capsular opacification was observed in 6/6 eyes. In the nonoperated wolf, the cataracts remained stable and did not affect the visual axis of either eye.</p><p><strong>Conclusions: </strong>This is the first description of phacoemulsification surgery in wolves. Phacoemulsification is a viable treatment option for captive wolves with nutritional cataracts. Special attention should be paid to hand-raised cubs to ensure that adequate amino acid levels are present in artificial milk.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140159145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The association of bacterial agents and flagellated protozoans in the etiopathogenesis of subspectacular abscesses in snakes.","authors":"Tom Hellebuyck, Michael Kotyk, Ferran Solanes Vilanova, Ivan Čepička","doi":"10.1111/vop.13210","DOIUrl":"https://doi.org/10.1111/vop.13210","url":null,"abstract":"<p><strong>Objectives: </strong>To describe the etiology, clinical pathology, and treatment of subspectacular abscesses (SAs) in 16 snakes.</p><p><strong>Animals studied: </strong>Sixteen snakes from private captive collections that were presented at a veterinary teaching hospital and diagnosed with SAs.</p><p><strong>Procedures: </strong>Exudate was collected from SAs via percutaneous aspiration or by performing a partial spectaculectomy and submitted to direct light microscopic examination and/or microbiological examination.</p><p><strong>Results: </strong>Bacterial isolates were cultured from exudate samples in 12 out of 16 snakes and comprised Pseudomonas aeruginosa isolates that showed identical antimicrobial susceptibility patterns in seven cases. Direct light microscopic examination demonstrated the presence of flagellated protozoa in the exudate in 10 out of 16 snakes and in all of these snakes, concurrent oropharyngeal flagellated protozoan infection could be demonstrated. Combined flagellated protozoan and bacterial SA infection was demonstrated in six snakes. Comparison of small subunit ribosomal RNA gene sequences of flagellated protozoans that were detected in the exudate of SAs from four snakes revealed they represented the parabasalians Monocercomonas colubrorum and Hypotrichomonas acosta in one and three cases, respectively. In all snakes, successful treatment of the SAs was achieved following surgical debridement of the subspectacular space combined with antimicrobial treatment.</p><p><strong>Conclusion: </strong>Bacteria as well as flagellates are considered to reach the subspectacular space through ascending infection from the oral cavity via the lacrimal duct. Although opportunistic bacterial infection presumably constitutes the predominant cause of SAs in snakes, the role of flagellate infection in the pathogenesis of this disorder should be further elucidated.</p>","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140140836","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abstracts: 54th annual meeting of the American College of Veterinary Ophthalmologists, Boston, Massachusetts, USA, September 21-23, 2023.","authors":"","doi":"10.1111/vop.13194","DOIUrl":"10.1111/vop.13194","url":null,"abstract":"","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120808","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abstracts: Annual Scientific Meeting of the European Society of Veterinary Ophthalmologists, Rome, Italy, September 28 - October 1, 2023.","authors":"","doi":"10.1111/vop.13180","DOIUrl":"10.1111/vop.13180","url":null,"abstract":"","PeriodicalId":23836,"journal":{"name":"Veterinary ophthalmology","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140120809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}