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Ulcerative keratitis

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https://www.readbyqxmd.com/read/27923939/ocular-surface-squamous-neoplasia-masquerading-as-peripheral-ulcerative-keratitis
#1
Anita Ganger, Saranya Devi, Noopur Gupta, Murugesan Vanathi, Radhika Tandon
No abstract text is available yet for this article.
December 5, 2016: Tropical Doctor
https://www.readbyqxmd.com/read/27896784/ocular-involvement-associated-with-varicella-in-adults
#2
Salma Gargouri, Sana Khochtali, Sourour Zina, Molka Khairallah, Imen Zone-Abid, Imen Kaibi, Salim Ben Yahia, Jamel Feki, Moncef Khairallah
BACKGROUND: Varicella is a common infectious disease primarily of childhood that is usually benign and self-limited. It is, however, increasingly seen in adults who are at a higher risk of severe infection. Ocular complications of varicella are relatively uncommon and have been rarely described in adults. We describe herein five adults who developed ocular involvement in association with primary varicella-zoster virus infection. FINDINGS: Ocular manifestations included acute anterior uveitis in four eyes, with associated stromal keratitis in one of them, epithelial ulcerative keratitis in the two eyes of one patient, and acute retinal necrosis in one eye...
December 2016: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/27894405/inhibition-of-matrix-metalloproteins-9-attenuated-candida-albicans-induced-inflammation-in-mouse-cornea
#3
C Dong, M G Yang
Since the severe corneal ulceration of mouse cornea is known to occur with inflammation. As one of imperative matrix metalloproteinase, the potential roles of matrix metalloproteins 9 (MMP9) in corneal ulceration and keratitis are still unveiled caused by fungal invasion. In this study, Candida albicans (CA) inoculated wild-type KM mice cornea was used as a model pathogen in corneal inflammation.  CA invasion significantly stimulated the expression of collagen IV and MMP9 detected by RT-PCR, Real-time PCR and Immunofluorescent staining in mouse cornea as soon as 6 hours post infection, and relatively decreased at 1 day post infection...
October 31, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/27861312/peripheral-ulcerative-keratitis-secondary-to-chronic-hepatitis-b-infection
#4
David W Wei, Christian Pagnoux, Clara C Chan
PURPOSE: To report a unique case of peripheral ulcerative keratitis secondary to hepatitis B virus (HBV)-associated cryoglobulinemia and vasculitis and its pharmacological and surgical treatment and 2-year follow-up. METHODS: A 52-year-old woman presented with unilateral eye pain and photophobia, arthralgia, remnants of a maculopapular rash, and subsequently facial numbness several weeks later. Her best spectacle-corrected visual acuity (BSCVA) in the affected eye was 20/80...
November 16, 2016: Cornea
https://www.readbyqxmd.com/read/27836332/ocular-pyoderma-gangrenosum-a-systematic-review
#5
Angela S Gupta, Alex G Ortega-Loayza
BACKGROUND: Pyoderma gangrenosum (PG) is a rare, ulcerative cutaneous disorder. Ophthalmic involvement in PG is atypical, but can have devastating consequences. OBJECTIVE: We sought to characterize ocular PG to allow for earlier diagnosis and therapy. To our knowledge, this is the first systematic review summarizing this clinical variant. METHODS: A systematic review was conducted using PubMed and Web of Science. Data were extracted and studies were qualitatively assessed and analyzed...
November 8, 2016: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/27830086/active-pedicle-epithelial-flap-transposition-combined-with-amniotic-membrane-transplantation-for-treatment-of-nonhealing-corneal-ulcers
#6
Ting Zhang, Yuexin Wang, Yanni Jia, Dongle Liu, Suxia Li, Weiyun Shi, Hua Gao
Introduction. The objective was to evaluate the efficacy of active pedicle epithelial flap transposition combined with amniotic membrane transplantation (AMT) in treating nonhealing corneal ulcers. Material and Methods. Eleven patients (11 eyes) with nonhealing corneal ulcer who underwent the combined surgery were included. Postoperatively, ulcer healing time was detected by corneal fluorescein staining. Visual acuity, intraocular pressure, surgical complications, and recurrence were recorded. Corneal status was inspected by the laser scanning confocal microscopy and anterior segment optical coherence tomography (AS-OCT)...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27826683/aspergillus-flavus-keratitis-experience-of-a-tertiary-eye-clinic-in-turkey
#7
Elif Erdem, Meltem Yagmur, Hazal Boral, Macit Ilkit, Reha Ersoz, Seyedmojtaba Seyedmousavi
We investigated the clinical and mycological characteristics of four cases of mycotic keratitis caused by Aspergillus flavus that occurred from July 2014 to May 2015 at Çukurova University Hospital, Adana, Turkey. In a 10-month period, a total of 64 corneal smear/scrapings were examined from patients with suspected mycotic keratitis. Fungal cultures were positive in six of these patients, indicating a 9.4% incidence of mycotic keratitis in this region, including four cases of A. flavus and two cases of Fusarium spp...
November 8, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27800266/polymicrobial-infection-of-the-cornea-due-to-contact-lens-wear
#8
Selçuk Sızmaz, Sibel Bingöllü, Elif Erdem, Filiz Kibar, Soner Koltaş, Meltem Yağmur, Reha Ersöz
A 38-year-old male presented with pain and redness in his left eye. He had a history of wearing contact lenses. His ophthalmic examination revealed a large corneal ulcer with surrounding infiltrate. Cultures were isolated from the contact lenses, lens solutions, storage cases, and conjunctivae of both eyes and also corneal scrapings of the left eye. Fortified vancomycin and amikacin drops were started hourly. Culture results of conjunctivae of each eye and left cornea were positive for Pseudomonas aeruginosa; cultures from the contact lenses, lens solution and storage case of both eyes revealed Pseudomonas aeruginosa and Alcaligenes xylosoxidans...
April 2016: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/27787540/effect-of-oral-voriconazole-on-fungal-keratitis-in-the-mycotic-ulcer-treatment-trial-ii-mutt-ii-a-randomized-clinical-trial
#9
N Venkatesh Prajna, Tiruvengada Krishnan, Revathi Rajaraman, Sushila Patel, Muthiah Srinivasan, Manoranjan Das, Kathryn J Ray, Kieran S O'Brien, Catherine E Oldenburg, Stephen D McLeod, Michael E Zegans, Travis C Porco, Nisha R Acharya, Thomas M Lietman, Jennifer Rose-Nussbaumer
Objective: To compare oral voriconazole with placebo in addition to topical antifungals in the treatment of filamentous fungal keratitis. Design, Setting, and Participants: The Mycotic Ulcer Treatment Trial II (MUTT II), a multicenter, double-masked, placebo-controlled, randomized clinical trial, was conducted in India and Nepal, with 2133 individuals screened for inclusion. Patients with smear-positive filamentous fungal ulcers and visual acuity of 20/400 (logMAR 1...
October 27, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27777806/ochrobactrum-anthropi-keratitis-with-focal-descemet-s-membrane-detachment-and-intracorneal-hypopyon
#10
Nandini Venkateswaran, Rachel A F Wozniak, Holly B Hindman
Purpose. To describe a unique case of O. anthropi keratitis associated with a rare manifestation of Descemet's membrane detachment and intracorneal hypopyon and to discuss challenges in diagnosis and management. Methods. Best-corrected visual acuity was measured with Snellen letters. Corneal scrapings were performed and aerobic, viral, herpetic, acid-fast bacilli, Acanthamoeba, and fungal stains and cultures were obtained. Following evisceration, tissue was evaluated for histologic features and again stained for bacteria, mycobacteria, Acanthamoeba, fungi, and viral particles...
2016: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/27766030/lacrimal-duct-occlusion-is-associated-with-infectious-keratitis
#11
Guigang Li, Jingmin Guo, Rong Liu, Weikun Hu, Lingjuan Xu, Juan Wang, Subo Cai, Hong Zhang, Yingting Zhu
Background: To explore the prevalence of lacrimal duct obstruction in patients with infectious keratitis, and the necessity of lacrimal duct dredge in the treatment of human infectious keratitis. Methodology/Principle Findings: The design is prospective, non-control case series. Thirty-one eyes from twenty-eight continuous patients with infectious keratitis were included in this study. The presence/absence of lacrimal duct obstruction was determined by the lacrimal duct irrigation test. The diagnosis of infectious keratitis was made based on clinical manifestations, cornea scraping microscopic examination and bacterial/fungus culture...
2016: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/27742299/epidemiological-profile-of-patients-undergoing-urgent-corneal-transplant-in-a-referral-center-in-northeastern-brazil
#12
G K P Cruz, S B da Silva, I C de Azevedo, D P S R P Carvalho, P F Meireles, M A F Júnior, A F Vitor
BACKGROUND: The purpose of the study was to characterize the epidemiological profile and average time on the waiting list of patients undergoing an urgent corneal transplantation (CT) in a referral center in the state of Rio Grande do Norte, northeastern Brazil. METHODS: This cross-sectional study included cases of urgent corneal transplants performed in a referral center from January 2010 to December 2014. Data were collected between January and March 2015. RESULTS: Seventy-four cases of emergency CT were analyzed...
September 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27721986/a-combination-of-intrastromal-and-intracameral-injections-of-amphotericin-b-in-the-treatment-of-severe-fungal-keratitis
#13
Jianzhang Hu, Jingjin Zhang, Yanling Li, Xiaoli Han, Weidong Zheng, Juan Yang, Guoxing Xu
Purpose. To evaluate the efficacy of a combination of intrastromal and intracameral injections of amphotericin B in the treatment of severe recalcitrant fungal keratitis. Methods. Patients with severe fungal keratitis who were resistant to conventional antifungal medical treatments and needed potential surgical intervention were recruited at the First Affiliated Hospital of Fujian Medical University between January 2012 and July 2013. The patients were treated with a combination of intrastromal and intracameral injections of amphotericin B (25 μg/mL and 50 μg/mL, resp...
2016: Journal of Ophthalmology
https://www.readbyqxmd.com/read/27721785/corneal-phaeohyphomycosis-caused-by-bipolaris-hawaiiensis
#14
Winai Chaidaroon, Sumet Supalaset, Napaporn Tananuvat, Nongnuch Vanittanakom
PURPOSE: To report a rare case of keratitis infected by Bipolaris hawaiiensis. METHODS: A patient who was diagnosed as fungal keratitis caused by B. hawaiiensis was retrospectively reviewed for history, clinical characteristics, risk factors, laboratory findings, treatments, and outcomes. RESULTS: A 63-year-old man with a history of trauma and saw dust in the left eye presented with a corneal ulcer. Eye examination revealed whitish infiltration with a feathery edge and small brownish deposits in the anterior stroma of the left cornea...
May 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27721784/corneal-ring-infiltrates-caused-by-serratia-marcescens-in-a-patient-with-human-immunodeficiency-virus
#15
Winai Chaidaroon, Sumet Supalaset
PURPOSE: To describe corneal ring infiltrates caused by Serratia marcescens in a patient with human immunodeficiency virus (HIV-1) who wore contact lenses. METHODS: A case study of a patient with keratitis due to an infection caused by S. marcescens and exhibiting corneal ring infiltrates was reviewed for history, clinical manifestation, microscopic study, and management. RESULTS: A 29-year-old man who had a history of contact lens wear and HIV-1 infection was admitted to hospital because of blurred vision, redness, and corneal infiltrates in the shape of a ring in the left eye...
May 2016: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/27698104/rapid-progressive-peripheral-ulcerative-keratitis-associated-with-longstanding-rheumatoid-arthritis
#16
Won-Seok Lee, Yun-Jung Choi, Wan-Hee Yoo
No abstract text is available yet for this article.
October 2016: Journal of Rheumatology
https://www.readbyqxmd.com/read/27631818/fusarium-dimerum-species-complex-fusarium-penzigii-keratitis-after-corneal-trauma
#17
Anália do Carmo, Esmeralda Costa, Marco Marques, Maria João Quadrado, Rui Tomé
We report a case of a keratitis associated with a Fusarium penzigii-a Fusarium dimerum species complex (FDSC)-in a 81-year-old woman after a corneal trauma with a tree branch. At patient admittance, slit lamp biomicroscopy revealed an exuberant chemosis, an inferior corneal ulcer with an associated inflammatory infiltrate, a central corneal abscess, bullous keratopathy and posterior synechiae. Corneal scrapes were obtained for identification of bacteria and fungi, and the patient started antibiotic treatment on empirical basis...
September 8, 2016: Mycopathologia
https://www.readbyqxmd.com/read/27631542/novel-phagocytosis-resistant-extended-spectrum-%C3%AE-lactamase-producing-escherichia-coli-from-keratitis
#18
Daria Van Tyne, Joseph B Ciolino, Jay Wang, Marlene L Durand, Michael S Gilmore
Importance: Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli are highly antibiotic resistant, and primary ocular infection by ESBL E coli has rarely been reported. A novel mutation conferring phagocytosis resistance would position a strain well to infect the cornea. Observations: A woman with recurrent keratitis presented with a corneal ulcer, which was culture positive for ESBL E coli. Resistant to nearly all other antimicrobials, the infection was treated with amikacin and polymyxin B-trimethoprim, and the ulcer resolved over 3 weeks...
November 1, 2016: JAMA Ophthalmology
https://www.readbyqxmd.com/read/27631025/environmentally-endemic-pseudomonas-aeruginosa-strains-with-mutations-in-lasr-are-associated-with-increased-disease-severity-in-corneal-ulcers
#19
John H Hammond, Wesley P Hebert, Amanda Naimie, Kathryn Ray, Rachel D Van Gelder, Antonio DiGiandomenico, Prajna Lalitha, Muthiah Srinivasan, Nisha R Acharya, Thomas Lietman, Deborah A Hogan, Michael E Zegans
The Steroids for Corneal Ulcers Trial (SCUT) was a multicenter, international study of bacterial keratitis in which 101 Pseudomonas aeruginosa infections were treated. Twenty-two of 101 P. aeruginosa isolates collected had a colony morphology characteristic of a loss-of-function mutation in lasR, the gene encoding a quorum-sensing master regulator. Ulcers caused by these 22 strains were associated with larger areas of corneal opacification, worse vision, and a lower rate of vision recovery in response to treatment than ulcers caused by the other isolates...
September 2016: MSphere
https://www.readbyqxmd.com/read/27624739/heat-shock-protein-70-expression-in-the-equine-cornea
#20
Cornelia Peterson, Elizabeth Driskell, David Wilkie, Christopher Premanandan, Ralph Hamor
OBJECTIVE: Expression of the 70-kDa heat-shock protein (HSP70) has been demonstrated in normal canine corneal epithelium, and inducible expression has been suggested to facilitate wound resolution through organized migration, proliferation, and adhesion of the corneal epithelial cells. Diminished expression of HSP70 may therefore contribute to prolonged healing in the pathologic cornea of other companion animal species, including the horse. ANIMAL STUDIED: Normal and pathologic equine cornea was evaluated to determine whether the expression of HSP70 is correlated with appropriate corneal epithelial wound healing...
September 13, 2016: Veterinary Ophthalmology
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