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Herpes keratitis

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https://www.readbyqxmd.com/read/29345511/clinical-characteristics-of-herpes-simplex-virus-associated-anterior-uveitis
#1
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/29332157/acanthamoeba-keratitis-in-porto-alegre-southern-brazil-28-cases-and-risk-factors
#2
Denise Leal Dos Santos, Sergio Kwitko, Diane Ruschel Marinho, Bruno Schneider de Araújo, Claudete Inês Locatelli, Marilise Brittes Rott
The increasing use of contact lenses worldwide has led to an increase in cases of Acanthamoeba keratitis, which are often associated with inappropriate cleaning of contact lenses and lens cases. This study aimed to retrospectively review 28 cases of Acanthamoeba keratitis in Porto Alegre (southern Brazil) and identify the risk factors and clinical outcomes of affected patients. Most patients had higher education (66.6%), all were users of contact lenses, mostly women (67.9%). Most patients were soft contact lens wearers (66...
January 14, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29329934/application-of-our-understanding-of-pathogenesis-of-herpetic-stromal-keratitis-for-novel-therapy
#3
Naveen K Rajasagi, Barry T Rouse
HSV-1 ocular infection can cause herpes stromal keratitis (SK), an immunopathological lesion. Frequent recurrences can lead to progressive corneal scaring which can result in vision impairment if left untreated. Currently, the acute and epithelial forms of SK are usually controlled using anti-viral drugs. However, chronic forms of SK which are inflammatory in nature, require the addition of a topical corticosteroid to the anti-viral treatment regimen. In this review, we highlight the essential events involved in SK pathogenesis which can be targeted for improved therapy...
January 9, 2018: Microbes and Infection
https://www.readbyqxmd.com/read/29305292/corneal-nerve-regeneration-after-herpes-simplex-keratitis-an-in-vivo-confocal-microscopy-study
#4
Hamid-Reza Moein, Ahmad Kheirkhah, Rodrigo T Muller, Andrea C Cruzat, Deborah Pavan-Langston, Pedram Hamrah
PURPOSE: To evaluate the long-term alterations in corneal nerves in patients with herpes simplex virus (HSV) keratitis using in vivo confocal microscopy (IVCM). DESIGN: Prospective longitudinal, cross sectional. METHODS: This study included 16 patients with history of HSV keratitis and 15 age-matched normal controls. Slit-scanning IVCM was performed in all subjects at baseline and then after a mean follow-up of 37.3 ± 1.7 months in the patient group...
January 2, 2018: Ocular Surface
https://www.readbyqxmd.com/read/29298778/acanthamoeba-keratitis-in-194-patients-risk-factors-for-bad-outcomes-and-severe-inflammatory-complications
#5
Nicole Carnt, Dana Robaei, Darwin C Minassian, John K G Dart
BACKGROUND/AIMS: To determine demographic and clinical features of patients with Acanthamoeba keratitis (AK) that are independent risk factors both for bad outcomes and for severe inflammatory complications (SIC). METHODS: A retrospective audit of medical records of AK cases at Moorfields Eye Hospital from July 2000 to April 2012, including 12 earlier surgical cases. Cases with a bad outcome were defined as those having one or more of the following: corneal perforation, keratoplasty, other surgery (except biopsy), duration of antiamoebic therapy (AAT) ≥10...
January 3, 2018: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29279602/new-therapeutic-perceptions-in-a-patient-with-complicated-herpes-simplex-virus-1-keratitis-a-case-report-and-review-of-the-literature
#6
REVIEW
Dimitrios Kalogeropoulos, Aliki Geka, Konstantinos Malamos, Maria Kanari, Chris Kalogeropoulos
BACKGROUND Keratitis caused by herpes simplex virus (HSV) can have detrimental effects on the cornea leading to loss of vision. Modern therapies can contribute to the prevention of anatomical and functional damage. CASE REPORT An 80-year-old male with complicated HSV-1 keratitis of the left eye (confirmed diagnosis after microbiological investigation) presented three months after antiviral treatment with corneal blurring, severe epitheliopathy, thinning of the stroma, and neovascularization. At the time he was referred, the visual acuity of his left eye was very low, as he could only count fingers at a one-foot distance...
December 27, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/29260056/corneal-edema-and-keratitis-following-selective-laser-trabeculoplasty
#7
Erica Tan Liu, Loren S Seery, Analisa Arosemena, Tania Lamba, Craig J Chaya
Purpose: To describe three cases of keratitis following Selective Laser Trabeculoplasty (SLT). Observations: Three females with a history of glaucoma presented with corneal edema, keratitis (endothelial, epithelial) and decreased visual acuity shortly after SLT. There was variable resolution of symptoms after starting treatment with oral antiherpetics and topical steroids. Conclusions and importance: With the increase in usage of SLT as a treatment for glaucoma and subsequent reports of keratitis, it is imperative for ophthalmic surgeons to be aware of herpes simplex as a possible risk factor...
June 2017: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29230977/scleral-buckling-using-a-non-contact-wide-angle-viewing-system-with-a-25-gauge-chandelier-endoilluminator
#8
Jaehyuck Jo, Byung Gil Moon, Joo Yong Lee
PURPOSE: To report the outcome of scleral buckling using a non-contact wide-angle viewing system with a 25-gauge chandelier endoilluminator. METHODS: Retrospective analyses of medical records were performed for 17 eyes of 16 patients with primary rhegmatogenous retinal detachment (RRD) without proliferative vitreoretinopathy who had undergone conventional scleral buckling with cryoretinopexy using the combination of a non-contact wide-angle viewing system and chandelier endoillumination...
December 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/29219900/diagnostic-challenges-in-nocardia-keratitis
#9
Joséphine Behaegel, Sorcha Ní Dhubhghaill, Carina Koppen
OBJECTIVE: To present a case of diagnostic confusion in Nocardia keratitis in a contact lens wearer and to illustrate the characteristic clinical findings of this rare entity. METHODS: Case report of Nocardia keratitis that was mistaken for acanthamoeba, herpetic, and fungal keratitis in three tertiary corneal referral centers before the correct diagnosis of Nocardia infection was made. RESULTS: A 29-year-old contact lens wearer was referred to our hospital for a contact lens-associated bacterial keratitis, not improving under standard bacterial treatment...
December 5, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/29181304/dna-vaccine-expressing-herpes-simplex-virus-1-glycoprotein-c-and-d-protects-mice-against-herpes-simplex-keratitis
#10
Li-Li Dong, Ru Tang, Yu-Jia Zhai, Tejsu Malla, Kai Hu
AIM: To investigate whether DNA vaccine encoding herpes simplex virus 1 (HSV-1) glycoprotein C (gC) and glycoprotein D (gD) will achieve better protective effect against herpes simplex keratitis (HSK) than DNA vaccine encoding gD alone. METHODS: DNA vaccine expressing gD or gC combined gD (gD.gC) were constructed and carried by chitosan nanoparticle. The expression of fusion protein gD and gC were detected in DNA/nanoparticle transfected 293T cells by Western-blot...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29155164/a-new-promising-candidate-to-overcome-drug-resistant-herpes-simplex-virus-infections
#11
Elisabeth Zinser, Adalbert Krawczyk, Petra Mühl-Zürbes, Ulrich Aufderhorst, Lena Stich, Mirko Zaja, Stefan Strobl, Alexander Steinkasserer, Christiane Silke Heilingloh
Infections with Herpes simplex viruses (HSV) belong to the most common human diseases worldwide, resulting in symptoms ranging from painful, but commonly self-limiting lesions of the orofacial or genital tract to severe infections of the eye or life-threatening generalized infections. Frequent HSV-reactivations at the eye may lead to the development of herpetic stromal keratitis, which is one of the major causes of infectious blindness in developed countries. The vast majority of life-threatening generalized infections occur in immunocompromised individuals, such as transplant recipients or patients suffering from advanced human immunodeficiency virus (HIV) infection with concurrent HSV-reactivation...
November 15, 2017: Antiviral Research
https://www.readbyqxmd.com/read/29133630/non-contact-lens-related-acanthamoeba-keratitis
#12
REVIEW
Prashant Garg, Paavan Kalra, Joveeta Joseph
The purpose of the study is to describe epidemiology, clinical features, diagnosis, and treatment of Acanthamoeba keratitis (AK) with special focus on the disease in nonusers of contact lenses (CLs). This study was a perspective based on authors' experience and review of published literature. AK accounts for 2% of microbiology-proven cases of keratitis. Trauma and exposure to contaminated water are the main predisposing factors for the disease. Association with CLs is seen only in small fraction of cases. Contrary to classical description experience in India suggests that out of proportion pain, ring infiltrate, and radial keratoneuritis are seen in less than a third of cases...
November 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29129651/dendritic-cells-in-the-cornea-during-herpes-simplex-viral-infection-and-inflammation
#13
REVIEW
Min S Kwon, Nicole A Carnt, Naomi R Truong, Ushasree Pattamatta, Andrew J White, Chameen Samarawickrama, Anthony L Cunningham
Herpes simplex keratitis is commonly caused by Herpes simplex Virus Type 1 (HSV-1), which primarily infects eyelids, corneas or conjunctiva. HSV-1- through sophisticated interactions with dendritic cells (DCs), a type of antigen-presenting cell)-initiates pro-inflammatory responses in the cornea. Corneas were once thought to be an immune privileged region; however, with the recent discovery of DCs that reside in the cornea, this long held conjecture has been overturned. Therefore, evaluating the clinical, preclinical, and cell-based studies that investigate the roles of DCs in corneas infected with HSV is critical...
November 9, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/29072860/clinical-profile-of-herpes-zoster-ophthalmicus-in-a-south-indian-patient-population
#14
Kalpana Babu, Padmamalini Mahendradas, Bhagya Sudheer, Ankush Kawali, Deepika C Parameswarappa, Vibha Pal, Mariamma Philips
PURPOSE: To analyze and compare the clinical profile of herpes zoster ophthalmicus (HZO) patients in a South Indian patient population aged <60 years and ≥60 years and determine the risk factors for recurrence of ocular inflammation. METHODS: Retrospective study of 249 cases between 2006 and 2016 from two tertiary referral eye centres in south india. RESULTS: Out of 249 cases, 189 cases were <60 years (Group 1) and 60 cases were aged ≥60 years (Group2)...
October 26, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29050189/-clinical-features-and-treatments-of-retrocorneal-fungal-infection
#15
J Cheng, H L Zhai, J Y Wang, L X Xie
Objective: To evaluate the clinical features of retrocorneal fungal infection and the therapeutic effects. Methods: This was a retrospective, noncomparative study of nine patients with retrocorneal fungal infection and an intact corneal epithelium treated at Qingdao Eye Hospital. The history, clinical features, diagnostic methods, pathogens and therapeutic effects were analyzed. Results: Five patients had a history of trauma by plant, two had a non-plant injury, and two had unidentified reasons. The duration between the initial onset and the first visit to our hospital was 7...
October 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/29044082/rickettsial-retinitis-direct-bacterial-infection-or-an-immune-mediated-response
#16
Rohan Chawla, Gadkar Amit Pundlik, Rama Chaudhry, Chandan Thakur
Infectious retinitis postfebrile illness is known to be caused by chikungunya, dengue, West Nile virus, Bartonella, Lyme's disease, Rift Valley fever, rickettsia, Herpes viruses etc. Rickettsia is Gram-negative bacteria transmitted by arthropods vectors. Ocular involvement is common including conjunctivitis, keratitis, anterior uveitis, panuveitis, retinitis, retinal vascular changes, and optic nerve involvement. Retinitis lesions in rickettsia can occur because of an immunological response to the bacteria or because of direct invasion and proliferation of bacteria in the inner retina...
October 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29023181/review-for-disease-of-the-year-varicella-zoster-virus-induced-anterior-uveitis
#17
Ilknur Tugal-Tutkun, Luca Cimino, Yonca Aydin Akova
Varicella zoster virus (VZV)-induced anterior uveitis (AU) may complicate the course of primary varicella infection typically seen in children. In adults, especially with advanced age, VZV AU is more commonly associated with herpes zoster ophthalmicus (HZO) with or without skin rash affecting the distribution of the ophthalmic nerve due to reactivation of the latent VZV in the trigeminal ganglion. While it is typically a mild self-limiting AU in primary infection, HZO AU is often accompanied by keratitis, may have a chronic recurrent course, and lead to sectoral iris atrophy, pupillary distortion, and ocular hypertension...
October 12, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/28954259/roles-of-trim32-in-corneal-epithelial-cells-after-infection-with-herpes-simplex-virus
#18
Hao Cui, Ying Liu, Yifei Huang
BACKGROUND: Epithelial cells play important roles as a critical barrier in protecting the cornea from microbial pathogens infection. METHODS: In this study, we were aiming to investigate the role of E3 ubiquitin ligase tripartite motif protein 32 (TRIM32) in corneal epithelial cells in response to Herpes Simplex Virus type 1 (HSV-1) infection and to elucidate the underlying mechanisms. RESULTS: We found the expression of TRIM32 was increased after infected with HSV-1 both in murine corneas and cultured human epithelial (HCE) cells...
2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28943388/corneal-higher-order-aberrations-and-visual-improvement-following-corneal-transplantation-in-treating-herpes-simplex-keratitis
#19
Eisuke Shimizu, Takefumi Yamaguchi, Daisuke Tomida, Yukari Yagi-Yaguchi, Yoshiyuki Satake, Kazuo Tsubota, Jun Shimazaki
PURPOSE: To examine corneal higher-order aberrations (HOAs) and visual improvement following corneal transplantation in treating corneal scar caused by herpes simplex keratitis (HSK). DESIGN: Retrospective consecutive case series. METHODS: This study included a total of 52 eyes: 18 normal subjects, and 34 eyes of consecutive patients with corneal scar due to HSK who underwent penetrating keratoplasty (PKP, 17 eyes) or deep anterior lamellar keratoplasty (DALK, 17 eyes)...
September 21, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28942073/update-on-the-management-of-infectious-keratitis
#20
REVIEW
Ariana Austin, Tom Lietman, Jennifer Rose-Nussbaumer
Infectious keratitis is a major global cause of visual impairment and blindness, often affecting marginalized populations. Proper diagnosis of the causative organism is critical, and although culture remains the prevailing diagnostic tool, newer techniques such as in vivo confocal microscopy are helpful for diagnosing fungus and Acanthamoeba. Next-generation sequencing holds the potential for early and accurate diagnosis even for organisms that are difficult to culture by conventional methods. Topical antibiotics remain the best treatment for bacterial keratitis, and a recent review found all commonly prescribed topical antibiotics to be equally effective...
November 2017: Ophthalmology
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