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Corneal ulcer

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https://www.readbyqxmd.com/read/28820791/teleophthalmic-approach-for-detection-of-corneal-diseases-accuracy-and-reliability
#1
Maria A Woodward, David C Musch, Christopher T Hood, Jonathan B Greene, Leslie M Niziol, V Swetha E Jeganathan, Paul P Lee
PURPOSE: Corneal and anterior segment diseases cause most of the urgent visits to eye care professionals. We evaluated the diagnostic accuracy of detecting corneal diseases using external photographs from 2 portable cameras for telemedicine purposes. METHODS: This is a prospective study of adults with a clinical diagnosis of corneal pathology including corneal abrasions, ulcers, scars, and pterygia. A cornea specialist provided the gold standard diagnosis by slit-lamp examination...
August 17, 2017: Cornea
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
#2
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/28815772/ectropion-improvement-with-topical-tazarotene-in-children-with-lamellar-ichthyosis
#3
Brooke Hanson, Lauren Becker, Kristen Hook, Ingrid Polcari, Raymond G Areaux, Sheilagh Maguiness
BACKGROUND/OBJECTIVES: Lamellar ichthyosis (LI) is a well-described phenotypic subtype of autosomal recessive congenital ichthyosis (ARCI). The condition typically presents at birth with collodion membrane and leads to thick, plate-like scaling of the skin throughout the body, alopecia, and prominent ocular manifestations. Ocular complications include bilateral cicatricial ectropion and lagophthalmos. These ocular complications can lead to chronic exposure keratitis and in some cases corneal ulceration and blindness...
August 17, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28812959/periocular-manifestations-of-trigeminal-trophic-syndrome-a-case-series-and-literature-review
#4
Katherine A McVeigh, Morag Adams, Richard Harrad, Rebecca Ford
Trigeminal trophic syndrome (TTS) is a condition whereby persistent facial ulceration presents consequent to central or peripheral insult to the trigeminal nerve. Lesions are created by repetitive self-inflicted manipulation and trauma of dysaesthetic skin within the trigeminal dermatome. We discuss four cases with aetiologies varied from presumed microvascular compromise to resection of cerebral meningioma, cerebrovascular accident, and herpes zoster ophthalmicus. We discuss the management of the under-recognised associated periocular skin ulcerations that result from physical manipulation of dysesthic skin and prove to be persistent and challenging to treat...
August 16, 2017: Orbit
https://www.readbyqxmd.com/read/28810564/clinical-efficacy-of-conjunctival-flap-surgery-in-the-treatment-of-refractory-fungal-keratitis
#5
Honorine Nizeyimana, Dan-Dan Zhou, Xiu-Fen Liu, Xiao-Tao Pan, Cong Liu, Cheng-Wei Lu, Ji-Long Hao
The aim of the present study was to investigate the use and effectiveness of a selective, partial, pedunculated (tongue-shaped) conjunctival flap (CF) for the treatment of refractory fungal keratitis (FK) with or without perforation. A total of 31 cases of corneal diseases treated by CF surgery between April 2014 and October 2015 were evaluated. Among the 31 cases, 16 cases (male:female, 11:5) with FK were selected. Logistic regression analysis was used to investigate factors associated with complications of CF surgery...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28799757/immobilization-of-growth-factors-to-collagen-surfaces-using-visible-light
#6
Gabriella Maria Fernandes Cunha, Hyun Jong Lee, Alisha Kumar, Alexander Kreymerman, Sarah Christine Heilshorn, David Myung
In the treatment of traumatic injuries, burns, and ulcers of the eye, inadequate epithelial tissue healing remains a major challenge. Wound healing is a complex process involving the temporal and spatial interplay between cells and their extracellular milieu. It can be impaired by a variety of causes including infection, poor circulation, loss of critical cells and/or proteins, and a deficiency in normal neural signaling (e.g. neurotrophic ulcers). Ocular anatomy is particularly vulnerable to lasting morbidity from delayed healing, whether it be scarring or perforation of the cornea, destruction of the conjunctival mucous membrane, or cicatricial changes to the eyelids and surrounding skin...
August 11, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/28782908/ectodysplasin-a-regulates-epithelial-barrier-function-through-sonic-hedgehog-signalling-pathway
#7
Sanming Li, Jing Zhou, Liying Zhang, Juan Li, Jingwen Yu, Ke Ning, Yangluowa Qu, Hui He, Yongxiong Chen, Peter S Reinach, Chia-Yang Liu, Zuguo Liu, Wei Li
Ectodysplasin A (Eda), a member of the tumour necrosis factor superfamily, plays an important role in ectodermal organ development. An EDA mutation underlies the most common of ectodermal dysplasias, that is X-linked hypohidrotic ectodermal dysplasia (XLHED) in humans. Even though it lacks a developmental function, the role of Eda during the postnatal stage remains elusive. In this study, we found tight junctional proteins ZO-1 and claudin-1 expression is largely reduced in epidermal, corneal and lung epithelia in Eda mutant Tabby mice at different postnatal ages...
August 7, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28770884/outcome-of-application-of-amniotic-membrane-graft-in-ocular-surface-disorders
#8
Nargis Nizam Ashraf, Muhammad Idrees Adhi
OBJECTIVE: To determine the outcome of application of amniotic graft in ocular surface disorders. METHODS: This cross-sectional study was conducted at Dow University of Health Sciences, Karachi, from January 2010 to December 2012, and comprised patients with ocular surface disorders. Patients' presenting symptoms and signs were recorded. Previously harvested and frozen amniotic graft was applied in different types of ocular surface disorders, such as corneal ulcers, pterygium, keratomalacia, Steven-Johnson syndrome, etc...
July 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28769591/an-unusual-case-of-spontaneous-mycobacterium-chelonae-corneal-ulcer-in-a-healthy-middle-aged-adult-retraction
#9
(no author information available yet)
[This retracts the article on p. 121 in vol. 9, PMID: 27274315.].
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28765880/microrna%C3%A2-494-inhibits-nerve-growth-factor%C3%A2-induced-cell-proliferation-by-targeting-cyclin-d1-in-human-corneal-epithelial-cells
#10
Dan Wu, Tingting Qian, Jiaxu Hong, Gang Li, Weiyun Shi, Jianjiang Xu
Nerve growth factor (NGF) is expressed in the human corneal epithelium and stroma. It is an efficient therapy for human corneal ulcers caused by neurotropic disease. However, little is known about the molecular mechanism of NGF in healing human corneal epithelial diseases. Numerous microRNAs (miRNAs) are expressed in the cornea and miRNAs have important roles in regulating corneal development. In the present study, novel miRNA regulators were demonstrated to be involved in NGF‑induced human corneal epithelial cell (hCEC) proliferation...
July 25, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28757692/orbital-implant-exposure-following-enucleation-or-evisceration
#11
Huda Abdullah Al-Farsi, Buthaina Issa Sabt, Abdullah Said Al-Mujaini
PURPOSE: To study the exposure rate of orbital implant postenucleation or evisceration procedures in two tertiary hospitals in Oman. DESIGN: A retrospective, descriptive, cross-section study. MATERIALS AND METHODS: Patients' records were reviewed for patients' demographics, surgical indications, implant types, follow-up and any reported complications after surgeries. Patients with a minimum of 1 year follow-up period were selected. All patients who underwent enucleation or evisceration with primary orbital implant were included in the study...
May 2017: Oman Journal of Ophthalmology
https://www.readbyqxmd.com/read/28742619/use-of-topical-insulin-to-treat-refractory-neurotrophic-corneal-ulcers
#12
Angeline L Wang, Eric Weinlander, Brandon M Metcalf, Neal P Barney, David M Gamm, Sarah M Nehls, Michael C Struck
PURPOSE: To report the clinical course of 6 patients with refractory neurotrophic corneal ulcers that were treated with topical insulin drops. METHODS: Retrospective chart review of patients who had neurotrophic corneal ulcers or epithelial defects refractory to standard medical and surgical treatment. Insulin drops, prepared by mixing regular insulin in artificial tears with a polyethylene glycol and propylene glycol base at a concentration of 1 unit per milliliter, were prescribed 2 to 3 times daily...
July 24, 2017: Cornea
https://www.readbyqxmd.com/read/28740737/clinical-characteristics-and-risk-factors-of-recurrent-mooren-s-ulcer
#13
Lixia Yang, Juan Xiao, Jiawei Wang, Han Zhang
PURPOSE: To investigate the clinical characteristics of Mooren's ulcer in East China and to identify the potential risk factors that affect the recurrence of Mooren's ulcer. METHODS: We reviewed the medical records of 95 patients (100 eyes) diagnosed with Mooren's ulcer from May 2005 to December 2014. The patients were classified into recurrent and nonrecurrent groups and followed up for 18 months. The difference between two groups was estimated. The patients in the recurrent group were subdivided according to the history of corneal infection and corneal perforation, respectively...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28724812/use-of-glycerol-preserved-corneas-for-corneal-transplants
#14
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/28716777/customised-crescentic-corneal-transplant-with-conjunctival-resection-in-an-atypical-case-of-malignant-mooren-s-ulcer
#15
Jayanand Urkude, Rashmi Singh, Manthan Chaniyara, Amar Pujari
No abstract text is available yet for this article.
July 17, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28715585/retinoic-acid-engineered-amniotic-membrane-used-as-graft-or-homogenate-positive-effects-on-corneal-alkali-burns
#16
Romain Joubert, Estelle Daniel, Nicolas Bonnin, Aurélie Comptour, Christelle Gross, Corinne Belville, Frédéric Chiambaretta, Loïc Blanchon, Vincent Sapin
Purpose: Alkali burns are the most common, severe chemical ocular injuries, their functional prognosis depending on corneal wound healing efficiency. The purpose of our study was to compare the benefits of amniotic membrane (AM) grafts and homogenates for wound healing in the presence or absence of previous all-trans retinoic acid (atRA) treatment. Methods: Fifty male CD1 mice with reproducible corneal chemical burn were divided into five groups, as follows: group 1 was treated with saline solution; groups 2 and 3 received untreated AM grafts or grafts treated with atRA, respectively; and groups 4 and 5 received untreated AM homogenates or homogenates treated with atRA, respectively...
July 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28712175/corneal-complications-and-visual-impairment-in-vernal-keratoconjunctivitis-patients
#17
Abdus Salam Arif, Bushra Aaqil, Afsheen Siddiqui, Zainab Nazneen, Umer Farooq
BACKGROUND: Vernal kerato-conjunctivitis (VKC) is an infrequent but serious form of allergic conjunctivitis common in warm and humid areas where air is rich in allergens. It affects both eyes asymmetrically. Although VKC is a self-limiting disease but visions affecting corneal complications influence the quality of life in school children. The aim of this study was to list the corneal complications due to this condition and to find out the extent of visual impairment among VKC patients...
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28710815/lacrimal-gland-development-from-signaling-interactions-to-regenerative-medicine
#18
REVIEW
Ankur Garg, Xin Zhang
The lacrimal gland plays a pivotal role in keeping the ocular surface lubricated, and protecting it from environmental exposure and insult. Dysfunction of the lacrimal gland results in deficiency of the aqueous component of the tear film, which can cause dryness of the ocular surface, also known as the aqueous-deficient dry eye disease. Left untreated, this disease can lead to significant morbidity, including frequent eye infections, corneal ulcerations and vision loss. Current therapies do not treat the underlying deficiency of the lacrimal gland, but merely provide symptomatic relief...
July 14, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28704317/comparison-of-collagen-cross-linking-and-amniotic-membrane-transplantation-in-an-experimental-alkali-burn-rabbit-model
#19
Sevgi Subasi, Ozgul Altintas, Melda Yardimoglu, Yusufhan Yazir, Suleyman Karaman, Selenay Furat Rencber, Kubra Kavram
PURPOSE: To compare the effects of collagen cross-linking (CXL) and amniotic membrane transplantation (AMT) on acute corneal alkali burns. METHODS: After establishment of an alkali burn model, 32 rabbits were divided into 4 groups: control group, AMT group, CXL group, and AMT + CXL (combined) group. Clinical parameters, including epithelial wound, opacity, ulceration, and neovascularization, were evaluated on postinjury days 1, 7, 14, and 18. Histological parameters were examined in hematoxylin/eosin (H&E) and Masson trichrome-stained corneal sections...
July 11, 2017: Cornea
https://www.readbyqxmd.com/read/28691943/effect-of-a-new-matrix-therapy-agent-in-persistent-epithelial-defects-after-bacterial-keratitis-treated-with-topical-fortified-antibiotics
#20
Marc-Antoine Chappelet, Diane Bernheim, Christophe Chiquet, Florent Aptel
PURPOSE: To evaluate the effect of topical application of a matrix regenerating agent (RGTA) in subjects with a persistent epithelial defect after bacterial keratitis treated with topical fortified antibiotics. METHODS: In this prospective case series of 14 subjects (14 eyes) with a persisting corneal ulcer after the cessation of fortified antibiotics, subjects were treated with an RGTA at a dose of 1 drop every other day. The main outcome measure was the proportion of subjects with complete corneal healing 1 month after initiation of treatment...
September 2017: Cornea
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