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Infectious keratitis

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https://www.readbyqxmd.com/read/29657982/epithelial-ingrowth-following-laser-in-situ-keratomileusis-lasik-prevalence-risk-factors-management-and-visual-outcomes
#1
REVIEW
Darren Shu Jeng Ting, Sathish Srinivasan, Jean-Pierre Danjoux
The number of laser in situ keratomileusis (LASIK) procedures is continuing to rise. Since its first application for correcting simple refractive errors over 25 years ago, the role of LASIK has extended to treat other conditions, including postkeratoplasty astigmatism/ametropia, postcataract surgery refractive error and presbyopia, among others. The long-term effectiveness, predictability and safety have been well established by many large studies. However, due to the creation of a potential interface between the flap and the underlying stroma, interface complications such as infectious keratitis, diffuse lamellar keratitis and epithelial ingrowth may occur...
2018: BMJ Open Ophthalmology
https://www.readbyqxmd.com/read/29657977/expert-practice-patterns-and-opinions-on-corneal-cross-linking-for-infectious-keratitis
#2
Yen C Hsia, Caitlin A Moe, Thomas M Lietman, Jeremy D Keenan, Jennifer Rose-Nussbaumer
Objective: To assess the current opinion and practice patterns from cornea experts regarding the benefit of corneal cross-linking (CXL) for infectious keratitis (IK). Methods and analysis: An international survey was distributed to corneal specialists via an internet survey. The survey data collected were analysed with descriptive statistics. Results: A survey was sent to 190 recipients, and 29 (15%) respondents completed the survey with an average of 7 years' experience using CXL...
2018: BMJ Open Ophthalmology
https://www.readbyqxmd.com/read/29602451/-autologous-serum-tears-long-term-treatment-in-dry-eye-syndrome
#3
M Beylerian, M Lazaro, J Magalon, J Veran, A Darque, F Grimaud, N Stolowy, H Beylerian, F Sabatier, L Hoffart
INTRODUCTION: Dry eye disease is a multifactorial pathology of the ocular surface. The high incidence of this pathology, as well as its significant impact on quality of life and vision and its financial cost, makes it a real public health problem. While the treatment of mild cases is generally simple and effective, treatment of severe forms is often disappointing. The use of autologous serum tears (AST) represents a therapeutic alternative for the most severe cases. The purpose of our study is to evaluate the efficacy of long-term AST treatment in patients with severe dry eye disease refractory to conventional treatment or secondary to systemic diseases such as Sjögren's syndrome or Graft versus Host disease (GVH), or ocular pathologies such as neurotrophic keratitis, chemical burns and ocular cicatricial pemphigoid...
March 27, 2018: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/29596605/evaluation-of-voriconazole-anti-acanthamoeba-polyphaga-in-vitro-activity-rat-cornea-penetration-and-efficacy-against-experimental-rat-acanthamoeba-keratitis
#4
Julie Gueudry, Laetitia Le Goff, Patricia Compagnon, Sabine Lefevre, Elodie Colasse, Camille Aknine, François Duval, Arnaud François, Romy Razakandrainibe, Jean Jacques Ballet, Marc Muraine, Loïc Favennec
Background: Acanthamoeba keratitis (AK) is a sight-threatening infectious disease. Its effective and safe medical therapy remains highly debated. Recently, voriconazole, a monotriazole with noted in vitro activity against a large variety of fungi, has been successfully used both topically and systemically to treat human AK cases. Objectives: To measure anti-Acanthamoeba polyphaga in vitro activity, anti-rat AK efficiency and rat cornea penetration of eye-drop and oral voriconazole...
March 27, 2018: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/29589177/time-dependent-antimicrobial-effect-of-photodynamic-therapy-with-tons-504-on-pseudomonas-aeruginosa
#5
Kentaro Sueoka, Taiichiro Chikama, Miftahul Akhyar Latief, Ji-Ae Ko, Yoshiaki Kiuchi, Takemasa Sakaguchi, Akira Obana
Pseudomonas aeruginosa (P. aeruginosa) is a major cause of infectious keratitis, which itself is a major cause of blindness worldwide. We have now evaluated the time-dependent effectiveness of photodynamic antimicrobial chemotherapy (PACT) with the chlorin derivative TONS 504 and a light-emitting diode (LED) on P. aeruginosa in vitro. PACT with TONS 504 (10 mg/L) and irradiation (30 J/m2 ) by an LED device that delivers light centered on a wavelength of 660 nm was applied to 1 × 106 colony-forming units of P...
March 27, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29564359/femtosecond-laser-assisted-astigmatic-keratotomy-a-review
#6
REVIEW
John S M Chang
Background: Astigmatic keratotomy (AK) remains an accessible means to correct surgically induced or naturally occurring astigmatism. The advantages of femtosecond laser-assisted astigmatic keratotomy (FSAK) over conventional methods have been recognized recently. Main text: This review evaluates the efficacy, complications, and different methods of FSAK for correction of astigmatism in native eyes and those that underwent previous penetrating keratoplasty (PKP)...
2018: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/29554009/case-report-acanthamoeba-keratitis-management-in-a-first-trimester-pregnant-patient
#7
Francisco de Borja Domínguez-Serrano, Manuel Caro-Magdaleno, Rafael Perea-Pérez, Enrique Rodríguez-de-la-Rúa, Jesús Montero-Iruzubieta
SIGNIFICANCE: Lacrimal punctal plugs may prevent the teratogenicity of the treatment used in infectious keratitis. Its use should be strongly considered in these cases. PURPOSE: We present the case of a 7-week pregnant patient with Acanthamoeba keratitis. CASE REPORT: The patient was a contact lens user with photophobia, redness, and intense pain in the right eye that started 2 weeks earlier. Corrected visual acuity was 20/63 (0.5 logMAR)...
March 16, 2018: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/29503960/a-case-of-fungal-keratitis-and-endophthalmitis-post-penetrating-keratoplasty-resulting-from-fungal-contamination-of-the-donor-cornea
#8
Koji Kitazawa, Koichi Wakimasu, Kazuhito Yoneda, Bernie Iliakis, Chie Sotozono, Shigeru Kinoshita
Purpose: Fungal infections post keratoplasty due to contamination of the donor corneal graft have become important issues that need to be addressed. Here we report a case of fungal keratitis and endophthalmitis post penetrating keratoplasty (PKP) due to fungal contamination of the donor corneal graft. Observations: We present a 52-year-old male who underwent PKP with a donor corneal graft that was later found to be contaminated with fungus. At 4-weeks postoperative, infectious infiltrates suddenly appeared at the border between the host and donor corneal graft, and endophthalmitis concomitantly occurred...
April 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29490391/-microbial-keratitis-understand-recognize-and-treat-part-1-general-aspects-and-characteristics-of-bacterial-keratitis
#9
Ingo Schmack, Michael Müller, Thomas Kohnen
Infectious inflammation of the cornea (microbial keratitis) represents a potentially vision threatening disease. Depending on the infectious agent and the course of the disease it can result in a complete loss of the involved eye. Early diagnosis and accurate treatment are mandatory to maintain a sufficient visual acuity. The purpose of this review is to highlight and discuss characteristic clinical features, diagnostic procedures, and therapeutic aspects of three major forms of microbial keratitis (bacteria, fungi, and acanthamoeba; the latter two in the 2nd part of this article)...
February 28, 2018: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/29456673/full-thickness-conjunctival-flap-covering-surgery-combined-with-amniotic-membrane-transplantation-for-severe-fungal-keratitis
#10
Jing Zhong, Bowen Wang, Saiqun Li, Yuqing Deng, Haixiang Huang, Ling Chen, Jin Yuan
Fungal keratitis is a severe and common ocular infectious disease. The present study evaluated the efficiency of full-thickness conjunctival flap covering surgery with amniotic membrane transplantation (FCCS + AMT) as a transitional surgery for severe fungal keratitis. A total of 17 patients with severe fungal keratitis without corneal perforation underwent FCCS + AMT between January 2010 and December 2015. The pathogenic factors, preoperative diagnosis and postoperative prognosis of FCCS + AMT at 3 months were evaluated...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29417444/corneal-perforation-after-noncontact-tonometry-in-patients-with-active-recurrent-herpes-simplex-keratitis-case-report
#11
Napaporn Tananuvat, Atitaya Apivatthakakul, Chulaluck Tangmonkongvoragul
PURPOSE: To report iatrogenic complications and to review the potential complications caused by noncontact tonometry (NCT) in related literature. METHODS: This case report describes two cases of active recurrent herpes simplex keratitis (HSK) on top of a thin corneal scar. The cornea was perforated by the air pulse from the NCT, resulting in an air bubble in the anterior chamber. RESULTS: Both patients were diagnosed with active recurrent necrotizing stromal HSK on top of a thinned corneal scar after previous therapeutic treatment involving tissue adhesive glue with a bandage contact lens (BCL) to treat a perforated cornea...
February 7, 2018: International Ophthalmology
https://www.readbyqxmd.com/read/29408907/five-year-outcomes-of-boston-type-i-keratoprosthesis-as-primary-versus-secondary-penetrating-corneal-procedure-in-a-matched-case-control-study
#12
Kai B Kang, Faris I Karas, Ruju Rai, Joelle A Hallak, Joann J Kang, Jose de la Cruz, Maria S Cortina
Despite improved retention and reduced complication rates paving the way for the current expansion of applications and surge in prevalence for the Boston type I Keratoprosthesis (KPro), the most frequent indication for its implantation today remains prior graft failure. The purpose of this study is to evaluate the long-term outcomes of primary KPro and compare to secondary implantation in a matched cohort study. This study included patients who underwent KPro implantation in a single center by two surgeons between July 2008 and October 2014...
2018: PloS One
https://www.readbyqxmd.com/read/29408828/clinical-features-antibiotic-susceptibility-profile-and-outcomes-of-infectious-keratitis-caused-by-stenotrophomonas-maltophilia
#13
Sotiria Palioura, Allister Gibbons, Darlene Miller, Terrence P OʼBrien, Eduardo C Alfonso, Oriel Spierer
PURPOSE: Stenotrophomonas maltophilia, an uncommon cause of infectious keratitis, is difficult to treat because of its resistance to multiple antibiotics. The purpose of this study is to describe the clinical features, antibiotic susceptibility profile, and outcomes of S. maltophilia keratitis. METHODS: A retrospective review of records from 1987 to 2016 identified 26 eyes of 26 patients who were treated at the Bascom Palmer Eye Institute for an S. maltophilia corneal ulcer...
March 2018: Cornea
https://www.readbyqxmd.com/read/29390522/delayed-onset-mycobacterium-intracellulare-keratitis-after-laser-in-situ-keratomileusis-a-case-report-and-literature-review
#14
JaeSang Ko, Se Kyung Kim, Dong Eun Yong, Tae-Im Kim, Eung Kweon Kim
RATIONALE: Infectious keratitis is a relatively uncommon but potentially sight-threatening complication of laser in situ keratomileusis (LASIK). Mycobacterial keratitis is usually regarded as late onset keratitis among post-LASIK keratitis. There has been no documented case of Mycobacterium intracellulare post-LASIK keratitis of a long-latent period. PATIENT CONCERNS: A 36-year-old man was referred to our out-patient clinic, for persistent corneal epithelial defect with intrastromal infiltration...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29375989/a-comparative-study-of-risk-factors-for-corneal-infection-in-diabetic-and-non-diabetic-patients
#15
Bin Wang, Shuo Yang, Hua-Lei Zhai, Yang-Yang Zhang, Chun-Xia Cui, Jun-Yi Wang, Li-Xin Xie
AIM: To compare the clinical characteristics of infectious keratopathy in type 2 diabetes mellitus (T2DM) and non-diabetes mellitus (NDM) and to investigate risk factors for infectious keratopathy in T2DM patients. METHODS: Totally 230 patients with T2DM and 168 with NDM diagnosed as infectious keratopathy were hospitalized at Qingdao Eye Hospital from 2001 to 2015. Data including sex, age, occupation, season, smoking and alcohol consumption habits, duration between onset and treatments, duration of hospitalization were collected...
2018: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29346493/antimicrobial-studies-using-the-therapeutic-tissue-cross-linking-agent-sodium-hydroxymethylglycinate-implication-for-treating-infectious-keratitis
#16
Patrick B Rapuano, Alexandra H Scanameo, Daeryl E Amponin, Sefy A Paulose, Mariya Zyablitskaya, Anna Takaoka, Leejee H Suh, Takayuki Nagasaki, Stephen L Trokel, David C Paik
Purpose: Our recent studies raise the possibility of using sodium hydroxymethylglycinate (SMG), for pharmacologic therapeutic tissue cross-linking (TXL) of the cornea. The present study was performed to evaluate the antimicrobial effects of SMG for potential use in treating infectious keratitis. Methods: In initial (group 1) experiments, methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant Staphylococcus aureus (MRSA), and Pseudomonas aeruginosa (PA) were treated with SMG (10-40 mM) for 10 to 120 minutes...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29345511/clinical-characteristics-of-herpes-simplex-virus-associated-anterior-uveitis
#17
Barbara Wensing, Manabu Mochizuki, Joke H De Boer
PURPOSE: The aim of this study is to describe the clinical characteristics of molecularly proven Herpes simplex virus (HSV) anterior uveitis. METHODS: The literature on HSV anterior uveitis whereby the diagnosis was confirmed by polymerase chain reaction (PCR) and or Goldmann-Witmer coefficient in aqueous humor was reviewed. Three studies from Europe and one from Japan could be included. RESULTS: It was observed that HSV anterior uveitis is mostly an acute unilateral disease mainly occurring in middle-aged people with a predominance in females...
January 18, 2018: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29340642/identifying-corneal-infections-in-formalin-fixed-specimens-using-next-generation-sequencing
#18
Zhigang Li, Florian P Breitwieser, Jennifer Lu, Albert S Jun, Laura Asnaghi, Steven L Salzberg, Charles G Eberhart
Purpose: We test the ability of next-generation sequencing, combined with computational analysis, to identify a range of organisms causing infectious keratitis. Methods: This retrospective study evaluated 16 cases of infectious keratitis and four control corneas in formalin-fixed tissues from the pathology laboratory. Infectious cases also were analyzed in the microbiology laboratory using culture, polymerase chain reaction, and direct staining. Classified sequence reads were analyzed with two different metagenomics classification engines, Kraken and Centrifuge, and visualized using the Pavian software tool...
January 1, 2018: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29338721/infectious-keratoconjunctivitis-in-semi-domesticated-eurasian-tundra-reindeer-rangifer-tarandus-tarandus-microbiological-study-of-clinically-affected-and-unaffected-animals-with-special-reference-to-cervid-herpesvirus-2
#19
Javier Sánchez Romano, Torill Mørk, Sauli Laaksonen, Erik Ågren, Ingebjørg H Nymo, Marianne Sunde, Morten Tryland
BACKGROUND: Infectious keratoconjunctivitis (IKC) is one of the most common ocular diseases in ruminants worldwide. In addition to keratitis and conjunctivitis, animals with IKC can develop uveitis, corneal ulcer, and in severe cases, blindness. The bacteria Moraxella spp. has been described as the primary causative agent of infectious bovine keratoconjunctivitis (IBK) in cattle (Bos taurus), while Chlamydia spp. and Mycoplasma conjunctivae are considered the main causative agents of IKC in sheep (Ovis aries)...
January 16, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29326852/unusual-course-of-crystalline-keratopathy-in-a-patient-with-graft-versus-host-disease
#20
Başak Bostancı, Yonca Aydın Akova
We present a case of infectious crystalline keratopathy in a patient with Graft-versus-Host disease (GVHD) who developed satellite fungal keratitis. A 51-year-old man was referred for bilateral total persistent corneal epithelial defects with severe dry eye. Although persistent epithelial defect healed with medical therapy, he developed stromal keratitis with satellite lesions confirmed to be secondary to Candida albicans. After three months of antifungal treatment and debridement, improvement of the infiltrates was obtained...
December 2017: Turkish Journal of Ophthalmology
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