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Contact lens keratitis

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https://www.readbyqxmd.com/read/28410356/water-exposure-is-a-common-risk-behavior-among-soft-and-gas-permeable-contact-lens-wearers
#1
Aaron B Zimmerman, Kathryn Richdale, Gladys Lynn Mitchell, Beth T Kinoshita, Dawn Y Lam, Heidi Wagner, Luigina Sorbara, Robin L Chalmers, Sarah A Collier, Jennifer R Cope, Maya M Rao, Michael J Beach, Jonathan S Yoder
PURPOSE: To understand soft contact lens (SCL) and gas-permeable (GP) lens wearers' behaviors and knowledge regarding exposure of lenses to water. METHODS: The Contact Lens Risk Survey (CLRS) and health behavior questions were completed online by a convenience sample of 1056 SCL and 85 GP lens wearers aged 20 to 76 years. Participants were asked about exposing their lenses to water and their understanding of risks associated with these behaviors. Chi-square analyses examined relationships between patient behaviors and perceptions...
April 13, 2017: Cornea
https://www.readbyqxmd.com/read/28380096/visual-rehabilitation-using-mini-scleral-contact-lenses-after-penetrating-keratoplasty
#2
Guilherme Andrade do Nascimento Rocha, Patrícia Oliveira Braga Miziara, Ana Clara Vieira de Castro, Arthur Andrade do Nascimento Rocha
Purpose: To report the visual rehabilitation outcomes and complications of patients fitted with mini-scleral rigid gas-permeable (RGP) contact lenses (mini-SCLs) after penetrating keratoplasty. Methods: We retrospectively reviewed 27 eyes (21 patients) that were fitted with mini-SCLs between October 2013 and December 2014. We analyzed demographic data, previous corneal disorders, visual outcomes, interval from keratoplasty to contact lens fitting, topographic and specular microscope data, fitted contact lens parameters, and complications...
January 2017: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28376553/fungal-keratitis-a-six-year-review-at-a-tertiary-referral-centre
#3
K C Iselin, P B Baenninger, A Schmittinger-Zirm, M A Thiel, C Kaufmann
Background This review reports the epidemiology, laboratory results, treatment regimens and costs of fungal keratitis at a tertiary referral center in Lucerne, Switzerland. Patients and Methods Culture-proven fungal infections between January 2010 and December 2015 were reviewed retrospectively. Results Seventeen patients with a mean age of 52 years were identified. Contact lens wear was the most important risk factor (n = 11) (65 % of all cases), with filamentous fungi being identified as the most common fungus type (n = 10) (91 % of all cases of contact lens-associated fungal keratitis)...
April 4, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28359825/bilateral-simultaneous-infective-keratitis
#4
Lai Hiu On Annie, Manotosh Ray
AIM: To analyze the demographics, risk factors, clinical and microbiological characteristics of cases of bilateral simultaneous infective keratitis. METHODS: In this retrospective case series, patients with clinical evidence of bilateral simultaneous infective keratitis were identified from January 1, 2011 to August 31, 2016. Demographics, risk factors, clinical and microbiological characteristics, and treatment outcomes were analyzed. RESULTS: Five patients (ten eyes) with bilateral simultaneous infective keratitis were identified...
March 27, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28350622/keratitis-due-to-achromobacter-xylosoxidans-in-a-contact-lens-user
#5
Cristina Almenara Michelena, María Ángeles Del Buey, Francisco Javier Ascaso, Jose Ángel Cristóbal
OBJECTIVES: Ocular infections due to Achromobacter xylosoxidans are extremely uncommon; their diagnosis is a challenge and the optimal treatment remains controversial. We present a case of A. xylosoxidans in a contact lens user and a review of the literature to facilitate diagnostic suspicion and empirical therapeutic management. METHODS: Review of the literature in PubMed and MEDLINE. We also document a case diagnosed in our department in January 2016. SETTING: Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain...
March 27, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28336675/evolving-risk-factors-and-antibiotic-sensitivity-patterns-for-microbial-keratitis-at-a-large-county-hospital
#6
Haoxing Jin, Walter T Parker, Nathan W Law, Cameron L Clarke, Jordan D Gisseman, Stephen C Pflugfelder, Li Wang, Zaina N Al-Mohtaseb
Purpose: To identify the risk factors, causative organisms, antimicrobial susceptibility and outcomes of microbial keratitis in a large county hospital in Houston, Texas. Design: Case series. METHODS: Setting: A large county hospital in Houston, Texas. Study Population: Patients with known diagnosis of microbial keratitis from January 2011 to May 2015. Observation Procedure: Retrospective chart review. Main Outcomes: Epidemiology, risk factors, outcomes and antibiotic susceptibility of microbial keratitis...
March 23, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28325674/-risk-factors-for-contact-lens-related-microbial-keratitis-a-multicenter-case-control-study
#7
P H Becmeur, F Abry, T Bourcier, N Meyer, A Sauer
PURPOSE: Currently, the most feared complication by ophthalmologists of contact lens (CL) wear is microbial keratitis (MK), even though its incidence remains low. It is also a significant financial burden for society. This study aimed to identify the risk factors for CL-related MK especially with regard to hygiene and pattern of use, in a large, prospective, multicenter, case-control study. METHODS: A multicenter retrospective case-control study was designed. The CL-related MK subpopulation (case) was compared with healthy CL wearers (control) using a 52-item anonymous questionnaire designed to determine subject demographics, lens wear history, lens type and disinfection solution, fitting, patient education, hygiene and maintenance of contact lenses, and patient history...
March 18, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28317680/risk-for-microbial-keratitis-comparative-metaanalysis-of-contact-lens-wearers-and-post-laser-in-situ-keratomileusis-patients
#8
Jordan Masters, Mehmet Kocak, Aaron Waite
PURPOSE: To compare the risk for microbial keratitis in contact lens wearers stratified by wear schedule with the risk after laser in situ keratomileusis (LASIK). SETTING: Hamilton Eye Institute and Department of Ophthalmology, University of Tennessee Health Science Center, Memphis, Tennessee, USA. DESIGN: Comparative metaanalysis and literature review. METHODS: An extensive literature search was performed in the PubMed database between December 2014 and July 2015...
January 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28298316/paediatric-infectious-keratitis-a-case-series-of-107-children-presenting-to-a-tertiary-referral-centre
#9
Julia Dutra Rossetto, Kara M Cavuoto, Carla J Osigian, Ta Chen Peter Chang, Darlene Miller, Hilda Capo, Oriel Spierer
BACKGROUND/AIMS: Corneal ulcers can result in severe visual impairment in children. The recent trends of paediatric microbial ulcerative keratitis in the USA are unknown. The purpose of this study is to report the risk factors, microbiological profile and treatment outcomes of paediatric microbial keratitis in South Florida. METHODS: A university-based tertiary eye care centre retrospective case series between 1992 and 2015. Medical records of 107 paediatric patients (age <18 years) with the diagnosis of microbial ulcerative keratitis were analysed...
March 15, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28241309/a-rabbit-model-of-acanthamoeba-keratitis-use-of-infected-soft-contact-lenses-after-corneal-epithelium-debridement-with-a-diamond-burr
#10
Ángel Ortillés, Pilar Goñi, Encarnación Rubio, Marta Sierra, Ekaterina Gámez, María T Fernández, María Benito, José Á Cristóbal, Begoña Calvo
Purpose: To develop a rabbit model of Acanthamoeba keratitis (AK) as the best method to reproduce the natural course of this disease. Methods: To induce AK, infected contact lenses (1000 amoebae/mm2, 90% trophozoites) were placed over the previously debrided corneal surface, in combination with a temporary tarsorrhaphy. Environmental and clinical strains of Acanthamoeba spp. (genotype T4) were used. Three groups (1L, n = 32; 2L-21d, n = 5; 2L-3d, n = 23) were established according to the number of contact lenses used (1L, 1 lens; 2L-21d and 2L-3d, 2 lenses) and the placement day of these (1L, day 1; 2L-21d, days 1 and 21; 2L-3d, days 1 and 3)...
February 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28223875/toxic-keratitis-after-use-of-wrongly-labeled-non-ophthalmic-medication
#11
Mohammad A Al-Amry, Nada Al-Abdan, Saleh A Al-Othaimeen
We present a 24-year-old female with trauma to her right eye. The patient was prescribed topical Tobramicin-dexamethasone eye drops but the pharmacy dispensed diclofenac diethyl amine ointment. The patient presented to the emergency room with lid edema, conjunctival injection and a corneal epithelial defect and toxic keratitis. The patient was successfully managed with copious irrigation, bandage contact lens and topical antibiotic therapy.
January 2017: Saudi Pharmaceutical Journal: SPJ: the Official Publication of the Saudi Pharmaceutical Society
https://www.readbyqxmd.com/read/28178141/a-non-surgical-approach-to-the-management-of-exposure-keratitis-due-to-facial-palsy-by-using-mini-scleral-lenses
#12
Victor Zaki
RATIONALE: This is a retrospective study aimed to determine the efficacy of mini-scleral contact lens in protecting the cornea and improving vision in cases of facial palsy. PATIENT CONCERNS: Patients with facial palsy get exposure keratitis because the cornea is dry. They feel pain, discomfort and excessive watering. If left untreated, it leads to permanent damage to the cornea and loss of good functional vision. Mini-scleral lens keep the cornea covered by saline solution all wearing hours...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28151861/shifting-trends-in-microbial-keratitis-following-penetrating-keratoplasty-in-taiwan
#13
Hung-Chi Chen, Chia-Yi Lee, Hung-Yu Lin, David Hui-Kang Ma, Phil Yeong-Fong Chen, Ching-Hsi Hsiao, Hsin-Chiung Lin, Lung-Kun Yeh, Hsin-Yuan Tan
To investigate the clinical and microbiological profiles from microbial keratitis following penetrating keratoplasty (PKP) in a tertiary referral center in Taiwan, the medical records of 648 consecutive patients (648 eyes) undergoing PKP between January 2003 and December 2007 were retrospectively reviewed. Patients who subsequently sustained microbial keratitis were enrolled and analyzed for potential risk factors, clinical manifestations, microbiological profiles, complications, graft survival, and final visual outcome...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28131677/a-randomized-clinical-trial-to-evaluate-the-usefulness-of-amniotic-membrane-transplantation-in-bacterial-keratitis-healing
#14
Seyed Ali Tabatabaei, Mohammad Soleimani, Mahmoud Jabbarvand Behrouz, Ali Torkashvand, Pasha Anvari, Mehdi Yaseri
PURPOSE: To determine whether early amniotic membrane transplantation improves the outcomes among patients with bacterial keratitis. PATIENTS AND METHODS: In this prospective randomized clinical trial 49 eyes from 49 patients with bacterial keratitis received routine antibiotic therapy followed by double-layer amniotic membrane transplantation during 2-5 days after start up of the medications and the second group of 50 eyes from 50 patients only received routine antibacterial therapy...
January 25, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28124962/-investigation-of-the-in-vitro-effects-of-melissa-officinalis-l-mentha-x-piperita-l-and-ocimum-basilicum-l-lamiaceae-essential-oils-on-the-cysts-and-trophozoites-of-acanthamoeba-castellani
#15
Ceren Ergüden, Soykan Özkoç, Bintuğ Öztürk, Songül Bayram Delibaş
Acanthamoeba species are free living amoeba found widely all over the world. They are responsible for Acanthamoeba keratitis (AK), an infection which is especially seen in contact lens users and after minor corneal traumas, that may lead blindness. At present, antifungals and antiseptics are used for the treatment of AK cases, however, some problems such as long treatment periods and the occurrence of side effects, resistance of cyst forms against drugs, emphasize the need for new drugs. There are some published studies that pointed out the effectiveness of plant extracts and essential oils on Acanthamoeba spp...
October 2016: Mikrobiyoloji Bülteni
https://www.readbyqxmd.com/read/28099282/risk-factors-for-acanthamoeba-keratitis-a-multistate-case-control-study-2008-2011
#16
Allison C Brown, Jonathan Ross, Daniel B Jones, Sarah A Collier, Tracy L Ayers, Robert M Hoekstra, Bryon Backensen, Sharon L Roy, Michael J Beach, Jonathan S Yoder
OBJECTIVE: To identify modifiable risk factors contributing to Acanthamoeba keratitis (AK) infection. METHODS: A case-control investigation was conducted. Case patients were soft contact lens wearers with laboratory-confirmed AK. Control were soft contact lens wearers ≥12 years of age, with no history of AK. Case patients were recruited from 14 ophthalmology referral centers and a clinical laboratory. Control were matched on state of residence and type of primary eye care provider (ophthalmologist or optometrist)...
January 17, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28095653/efficacy-of-korean-multipurpose-contact-lens-disinfecting-solutions-against-acanthamoeba-castellanii
#17
Eun-Kyung Moon, Hye-Ryun Park, Fu-Shi Quan, Hyun-Hee Kong
Acanthamoeba keratitis has been increasing in recent years. Main risk factors are contact lens wear and their cleaning solutions. Most contact lens wearers use multipurpose disinfecting solutions (MPDS) for cleansing and disinfecting microorganisms because of its convenience. We determined amoebicidal effects of MPDS made in Korea and their cytotoxicity on human corneal epithelium cells. Fifteen commercial MPDS (A to O) were tested for their amoebicidal effects on Acanthamoeba castellanii trophozoites and cysts by using a most probable number (MPN) technique...
December 2016: Korean Journal of Parasitology
https://www.readbyqxmd.com/read/28013522/methods-for-in-vivo-ex-vivo-analysis-of-antimicrobial-peptides-in-bacterial-keratitis-sirna-knockdown-colony-counts-myeloperoxidase-immunostaining-and-rt-pcr-assays
#18
Satya Sree Kolar, Hasna Baidouri, Maria Luisa Mangoni, Alison M McDermott
Antimicrobial peptides (AMPs) are essential components of the innate immune response. They have direct killing ability as well as immunomodulatory functions. Here, we describe techniques to identify specific AMPs involved in the protection against microbial keratitis, a vision threatening infection of the cornea of the eye which is the most serious complication of contact lens wear. Specifically we detail the use of siRNA technology to temporarily knockdown AMP expression at the murine ocular surface in vivo and then describe ex vivo assays to determine the level of bacteria, relative number of neutrophils, and levels of cytokines, chemokines, and AMPs in infected corneas...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27989423/-diagnostic-and-therapeutic-contribution-of-microbiological-analysis-in-severe-microbial-keratitis-at-reims-university-hospital-between-2012%C3%A2-and-2014
#19
J Caliot, D Guindolet, A Ducasse, L Andreoletti, C Arndt
PURPOSE: To investigate the contribution of microbial analysis in the diagnosis and management of severe microbial keratitis. MATERIAL AND METHOD: This is a monocentric retrospective study at the University Hospital of Reims from January 2012 to December 2014. Corneal scrapings with infectious keratitis were subjected to routine bacterial and fungal culture. PCR was also performed to detect various viral DNA (VZV, CMV, EBV, HSV 1 & 2, adenovirus) and Acanthamoeba sp...
December 15, 2016: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/27902509/paecilomyces-lilacinus-keratitis-in-a-soft-contact-lens-wearer
#20
Rosa Monno, Giovanni Alessio, Silvana Guerriero, Carmen Capolongo, Carla Calia, Luciana Fumarola, Carlo Pazzani, Anna Di Taranto, Giuseppe Miragliotta
We describe a case of keratitis caused by Paecilomyces lilacinus in a contact lens wearer with a history of diabetes.
November 29, 2016: Eye & Contact Lens
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