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Infectious keratitis

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https://www.readbyqxmd.com/read/28817744/predictors-of-corneal-perforation-or-need-for-therapeutic-keratoplasty-in-severe-fungal-keratitis-a-secondary-analysis-of-the-mycotic-ulcer-treatment-trial-ii
#1
N Venkatesh Prajna, Tiruvengada Krishnan, Revathi Rajaraman, Sushila Patel, Ranjeet Shah, Muthiah Srinivasan, Manoranjan Das, Kathryn J Ray, Catherine E Oldenburg, Stephen D McLeod, Michael E Zegans, Nisha R Acharya, Thomas M Lietman, Jennifer Rose-Nussbaumer
Importance: Identifying patients with infectious keratitis who are at risk of experiencing a poor outcome may be useful to allocate resources toward high- risk patients, particularly in resource-poor settings. Objective: To determine baseline patient and ulcer characteristics that predict a high risk of developing corneal perforation and/or the need to undergo therapeutic penetrating keratoplasty (TPK). Design, Setting, and Participants: This is a secondary analysis of Mycotic Ulcer Treatment Trial II, a multicenter, double-masked, placebo-controlled randomized clinical trial that enrolled 240 patients with smear-positive filamentous fungal corneal ulcers who enrolled between May 2010 and August 2015...
August 17, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/28807636/visual-outcomes-and-complications-of-type-i-boston-keratoprosthesis-in-children-a-retrospective-multicenter-study-and-literature-review
#2
Simon S M Fung, Samir Jabbour, Mona Harissi-Dagher, Reginald R G Tan, Patrick Hamel, Kashif Baig, Asim Ali
PURPOSE: To report outcomes and complications of Boston type 1 keratoprosthesis (KPro) implantation in children. DESIGN: Retrospective, multicenter case series. PARTICIPANTS: All children 16 years of age or younger who underwent KPro surgery at 3 ophthalmology centers in Canada between January 2010 and November 2014. METHODS: Records of patients having undergone KPro implantation were reviewed. Data on preoperative characteristics, surgical procedure(s) performed, and postoperative outcomes were collected and analyzed...
August 11, 2017: Ophthalmology
https://www.readbyqxmd.com/read/28803395/isolated-severe-microblepharon-in-a-neonate-a-rare-case
#3
Rachna Meel, Saranya Devi, Anita Ganger, Manasa S, Neelam Pushker
PURPOSE: To report a rare case of isolated severe microblepharon in a neonate. METHODS: A 27 days old male child was brought by parents with redness, photophobia and discharge for two weeks. Thorough ophthalmological and systemic examination was performed. RESULTS: The diagnosis of isolated severe microblepharon with infectious keratitis was made. After the appropriate management of infectious keratitis and achieving complete resolution, the child was subjected to bilateral lid reconstruction was done in the form of upper lid skin grafting and tarsorrhaphy and the patient is being followed up...
August 12, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28770882/visual-outcome-in-patients-of-keratomycosis-at-a-tertiary-care-centre-in-larkana-pakistan
#4
Syed Imtiaz Ali Shah, Shujaat Ali Shah, Partab Rai, Naeem Akhtar Katpar, Safdar Ali Abbasi, Akbar Ali Soomro
OBJECTIVE: To study the post-treatment visual outcome of fungal keratitis. METHODS: This prospective study was carried out at Chandka Medical College and Hospital, Larkana, Pakistan, from March 2005 to March 2016. Patients with clinical features of fungal keratitis, with positive corneal scrapings for fungi, and those who followed up for a minimum period of three months after recovery from infection were included.Other causes of infectious keratitis were excluded...
July 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28758436/-diagnostics-and-treatment-of-infectious-keratitis
#5
Nóra Szentmáry, László Módis, László Imre, Ágnes Füst, Loay Daas, Lenke Laurik, Berthold Seitz, Zoltán Zsolt Nagy
We summarize up-to-date diagnostic and treatment of infectious keratitis using literature data and some clinical examples. In the clinical practice, most commonly bacterial, herpetic, mycotic and acanthamoeba keratitis occur. Beside slitlamp examination, for diagnostic purpose, we analyse corneal sensitivity, perform in vivo confocal microscopy, polymerase-chain-reaction (PCR), in vitro culture and histological examination of the corneal sample. As conservative treatment we use primarily topical moxifloxacin or cephasolin with fortified tobramycin or gentamycin in bacterial, topical antiviral gel (in some cases in combination with systemic antiviral treatment) in part in combination with topical corticosteroids in herpetic, voriconasole or amphotericin-B in mycotic, and topical-triple-therapy (diamidine, biguanid and antibiotics) in acanthamoeba keratitis...
August 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28739646/koh-mount-as-an-aid-in-the-management-of-infectious-keratitis-at-secondary-eye-care-centre
#6
Varsha M Rathi, Monica Thakur, Savitri Sharma, Rohit Khanna, Prashant Garg
AIMS: To report the clinical outcome of infectious keratitis managed after doing 10% KOH mount of corneal smears and reporting done by an ophthalmologist in the secondary eye care centre in South India. METHODS: 103 consecutive cases of microbial keratitis were studied. Inclusion criteria were presence of corneal infiltrate on slit lamp biomicroscopy. An ophthalmologist carried out microbiological evaluation of 10% KOH mount of corneal scrapings. No cultures were done at secondary centres...
July 24, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724812/use-of-glycerol-preserved-corneas-for-corneal-transplants
#7
Neeti Gupta, Prerna Upadhyay
PURPOSE: This study was carried out to see the results of glycerol-preserved cornea (GPC) in emergency situation when fresh corneal tissue was not available. The aim was to study the outcome of corneal transplantation using GPC. METHODS: This was a retrospective study. The medical records of all the patients were reviewed, who underwent keratoplasty using "GPC" during the period from October 2011 to December 2015. The indication of keratoplasty, duration of preservation of the GPC, and its outcome were analyzed...
July 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28704321/observation-of-retrocorneal-plaques-in-patients-with-infectious-keratitis-using-anterior-segment-optical-coherence-tomography
#8
Yuki Takezawa, Takashi Suzuki, Atsushi Shiraishi
PURPOSE: Endothelial plaques are a typical characteristic in patients with fungal keratitis. However, bacterial keratitis and herpetic keratouveitis are rarely associated with fibrin formation on the retrocorneal surface. This study was conducted to examine plaques attached to the endothelium in patients with infectious keratitis using anterior segment optical coherence tomography (AS-OCT). METHODS: Seventeen patients (10 women and 7 men; mean age, 75 ± 15.5 years) suspected to have infectious keratitis with retrocorneal plaques were included...
July 11, 2017: Cornea
https://www.readbyqxmd.com/read/28691942/rose-bengal-photodynamic-antimicrobial-therapy-a-novel-treatment-for-resistant-fusarium-keratitis
#9
Guillermo Amescua, Alejandro Arboleda, Neda Nikpoor, Heather Durkee, Nidhi Relhan, Mariela C Aguilar, Harry W Flynn, Darlene Miller, Jean-Marie Parel
PURPOSE: To evaluate the efficacy of rose bengal PDAT for the management of a patient with multidrug-resistant Fusarium keratoplasticum keratitis unresponsive to standard clinical treatment. METHODS: This case report presents a clinical case of F. keratoplasticum keratitis not responsive to standard medical care. In vitro studies from patients culture isolated responded to rose bengal PDAT. Patient received two treatments with rose bengal 0.1% and exposure to green light with a total energy of 2...
September 2017: Cornea
https://www.readbyqxmd.com/read/28660128/medical-and-surgical-management-of-pasteurella-canis-infectious-keratitis
#10
Ankit Shah, Mansi Talati, Thomas Mauger
INTRODUCTION: We describe a case of refractory Pasteurella Canis keratitis that initially failed antimicrobial treatment but was successfully treated with a conjunctival flap followed by a penetrating keratoplasty. CASE DISCUSSION: A 70-year-old male had persistent corneal edema related to previous herpes zoster keratouveitis with visual acuity of 20/400. An endothelial keratoplasty was performed with improvement in vision to 20/25. Several months after this surgery the patient developed a corneal infiltrate and cultures grew Pasturella canis...
2017: IDCases
https://www.readbyqxmd.com/read/28659135/bilateral-morganella-morganii-keratitis-in-a-patient-with-facial-topical-corticosteroid-induced-rosacea-like-dermatitis-a-case-report
#11
Bei Zhang, Fei Pan, Kejian Zhu
BACKGROUND: Bilateral keratitis rarely occurs in individuals without predisposing factors. Here we describe the clinical course of a patient who developed a bilateral keratitis caused by Morganella. morganii which might be associated with long term using of topical corticosteroids-containing preparations on the face. CASE PRESENTATION: A 52-year-old female patient presented with marked bilateral corneal infiltration and hypopyon without any usual predisposing factors for bilateral infectious keratitis...
June 28, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28656012/pathobiology-and-immunobiology-of-acanthamoeba-keratitis-insights-from-animal-models%C3%A2
#12
REVIEW
Sudha Neelam, Jerry Y Niederkorn
Acanthamoeba keratitis (AK) is a rare but sight-threatening disease caused by pathogenic species of Acanthamoeba. Despite its ubiquitous nature, the incidence of AK is relatively low compared to other forms of infectious keratitis. Although contact lens wear is a major risk factor, exposure to contaminated water and ocular trauma are also associated with AK. Once a patient develops AK the prognosis is very poor unless an aggressive treatment regimen is initiated early. Some of the intriguing features of AK are the lack of immunological memory, resistance of the dormant cyst form to treatment, differences between the pathogenic strains and soil isolates of Acanthamoeba and the unique role of the innate immune system in controlling this disease...
June 2017: Yale Journal of Biology and Medicine
https://www.readbyqxmd.com/read/28637763/analysis-of-herpes-simplex-virus-reactivation-in-explant-reveals-a-method-dependent-difference-in-measured-timing-of-reactivation
#13
Jessica R Doll, Nancy M Sawtell
Herpes simplex virus (HSV) infection is widespread in the human population. Following orofacial infection, HSV establishes latency in innervating sensory neurons, primarily located in the trigeminal ganglia. A central feature of HSV pathogenesis is the ability to periodically reactivate in those neurons and be transported back to the body surface. Both transmission and disease, such as keratitis, encephalitis, and neurodegeneration, have been linked to reactivation. Despite invaluable insights obtained from model systems, interactions between viral and host functions that regulate reactivation are still incompletely understood...
August 15, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28631638/clinicomicrobiological-profile-of-endophthalmitis-a-10-year-experience-in-a-tertiary-care-center-in-north-india
#14
Gita Satpathy, Niranjan Nayak, Meenakshi Wadhwani, Pradeep Venkwatesh, Atul Kumar, Yograj Sharma, Vishnu Sreenivas
PURPOSE: To determine the clinicomicrobiological profile of infectious agents and their antibiotic susceptibility in different type of endophthalmitis. METHODS: A retrospective review of clinical and microbiological records from January 2001 to December 2010, was performed in 1110 patients diagnosed with different type of endophthalmitis (postoperative, posttraumatic, endogenous and post keratitis) to record the demographic details, clinical presentations; microbiological agents isolated with their antimicrobial sensitivity pattern...
April 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28630792/corneal-collagen-crosslinking-treatment-in-a-case-with-pneumococcal-keratitis
#15
Ayşe Bozkurt Oflaz, Banu Bozkurt, Ümit Kamış, Bengü Ekinci Köktekir
Bacterial keratitis is a serious ocular infectious disease that can threaten vision. The disease generally progresses rapidly and can lead to corneal scar, stromal abscess formation, perforation, and dissemination to adjacent tissues if not treated properly. Recent studies showed that corneal collagen crosslinking (CCC) using ultraviolet-A/riboflavin is effective in the treatment of bacterial keratitis refractory to topical antibiotic treatment. In addition to being bactericidal, CCC also decreases risk of perforation by strengthening the corneal collagen structure...
June 2017: Turkish Journal of Ophthalmology
https://www.readbyqxmd.com/read/28626819/comparison-of-bandage-contact-lens-removal-on-the-fourth-versus-seventh-postoperative-day-after-photorefractive-keratectomy-a-randomized-clinical-trial
#16
Mehrdad Mohammadpour, Delaram Shakoor, Hassan Hashemi, Mohamad Aghaie Meybodi, Fateme Rajabi, Pegah Hosseini
PURPOSE: To compare the outcomes of bandage contact lens (BCL) removal on the fourth versus seventh post-operative day following photorefractive keratectomy (PRK). METHODS: This study recruited eyes of patients who underwent PRK surgery. The patients were randomly assigned to 2 groups. In Group 1 BCL was removed on the 4th postoperative day, while in Group 2, BCL was removed on the 7th postoperative day. After BCL removal, patients were asked to express their pain score and eye discomfort...
June 2017: Journal of Current Ophthalmology
https://www.readbyqxmd.com/read/28606270/-keratoplasty-classification-and-primary-disease-spectrum-analysis-of-315-cases
#17
S B Cai, M Sun, S Li, L J Xu, W Wang, J Wang, W K Hu, X Y Li, P Wang, H Zhang, G G Li
Objective: To identify the primary disease spectrum and trends of surgical procedure of keratoplasty patients. Methods: Retrospective case series study. To review all patients who underwent keratoplasty at Department of ophthalmology in Tongji Hospital from January 1, 2012 to December 31, 2015. The data collected included age, sex, birthplace, and primary corneal disease and associated surgical procedures. Then the data were compared with similar papers domestic and foreign. Results: A total of 315 keratoplasties were performed during this 4-year period...
June 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28602948/emerging-strategies-for-antimicrobial-drug-delivery-to-the-ocular-surface-implications-for-infectious-keratitis
#18
REVIEW
Ajay Sharma, Jonathan Taniguchi
Infectious keratitis is a medical emergency that can cause severe visual morbidity if not treated promptly. Depending upon the causative microorganism, effective management of infectious keratitis requires frequent application of antibacterial, antifungal, or antiviral eye drops, which may have low bioavailability, undesirable side effects, and poor patient compliance. Ocular formulations of antimicrobials that can increase corneal permeation and provide extended presence on ocular surface are being developed...
June 7, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28591279/detection-of-herpes-simplex-1-and-2-and-varicella-zoster-virus-by-quantitative-real-time-polymerase-chain-reaction-in-corneas-from-patients-with-bacterial-keratitis
#19
Heloisa Nascimento, Aripuanã Watanabe, Ana Carolina Cabreira Vieira, Andrea Pelegrini, Maria Cecília Yu, Paulo José Martins Bispo, Celso Francisco Hernandes Granato, Ana Luisa Höfling-Lima
Objective: Bacterial keratitis occurs worldwide, and despite recent developments, it remains a potentially blinding condition. This study assesses the presence of herpes simplex virus (HSV-1 and -2) and varicella zoster virus (VZV) by quantitative real-time polymerase chain reaction (qPCR) in corneal scrapings from patients with bacterial keratitis. Methods: A total of 65 patients with clinical diagnoses of infectious corneal ulcers prospectively underwent clinical eye examinations...
March 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28586930/-mid-and-longterm-experiences-with-the-boston-keratoprosthesis-the-cologne-and-salzburg-perspective
#20
Friederike Schaub, Björn O Bachmann, Orang Seyeddain, Sarah Moussa, Herbert A Reitsamer, Claus Cursiefen
Background Eyes with severe corneal opacifications and insufficient prognosis for high-risk corneal transplantation can be considered for the implantation of a Boston-keratoprosthesis. Since 2013, this technique of "artificial" corneal replacement is provided to high-risk eyes at the Department of Ophthalmology, University of Cologne and for 9 years at the University of Salzburg. In the meantime, a type I Boston keratoprosthesis (BI-KPro) has been implanted in 24 eyes in Cologne and in 28 eyes in Salzburg. Methods In this article, results and complications according to BI-KPro are discussed, both from the literature in PubMed, as well as from our own experiences...
June 2017: Klinische Monatsblätter Für Augenheilkunde
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