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Corneal diseases

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https://www.readbyqxmd.com/read/28822704/corneal-confocal-microscopy-and-dry-eye-findings-in-contact-lens-discomfort-patients
#1
Aysun Sanal Dogan, Canan Gurdal, Nese Arslan
OBJECTIVES: To evaluate the corneal confocal microscopy and dry eye findings in patients with contact lens discomfort. METHODS: The study included 3 groups of participants: Contact lens wearers using silicone hydrogel soft contact lenses who are symptomatic (CLD, n=15) or asymptomatic (ACL, n=11) and non-wearers as controls (n=14). Duration of contact lens wear, Ocular Surface Disease Index (OSDI) questionnaire responses, fluorescein tear break-uptime (FBUT), and corneal confocal microscopy findings were recorded...
August 16, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28822028/effect-of-diquafosol-tetrasodium-3-on-the-conjunctival-surface-and-clinical-findings-after-cataract-surgery-in-patients-with-dry-eye
#2
Lian Cui, Ying Li, Hyo Seok Lee, Jee Myung Yang, Won Choi, Kyung Chul Yoon
PURPOSE: To investigate the effects of diquafosol tetrasodium (DT) 3% on conjunctival impression cytologic findings in addition to clinical symptoms and signs after cataract surgery in patients with preexisting dry eye disease (DED). METHODS: Ninety-four eyes of 94 patients with DED who underwent uneventful cataract surgery were included. In total, 50 patients were treated with DT 3% (group A), while 44 patients were treated with sodium hyaluronate 0.1% (group B) postoperatively, along with topical antibiotics and steroids...
August 18, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28820791/teleophthalmic-approach-for-detection-of-corneal-diseases-accuracy-and-reliability
#3
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/28820150/component-corneal-surgery-an-update
#4
REVIEW
Prafulla K Maharana, Pranita Sahay, Deepali Singhal, Itika Garg, Jeewan S Titiyal, Namrata Sharma
Several decades ago, penetrating keratoplasty was a challenge to corneal surgeons. Constant effort by the corneal surgeon to improve the outcomes as well as utilization of the available resources has led to a revolutionary change in the field of keratoplasty. All these efforts have led to the evolution of techniques that allow a corneal surgeon to disease-specific transplant of individual layers of corneal "so-called component corneal surgery" depending on the layer of cornea affected. This has led to an improvement in corneal graft survival as well as a better utilization of corneal tissues...
August 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28819566/development-of-poly-lactic-glycolic-acid-plga-microspheres-for-controlled-release-of-rho-associated-kinase-inhibitor
#5
Sho Koda, Naoki Okumura, Junji Kitano, Noriko Koizumi, Yasuhiko Tabata
PURPOSE: The purpose of this study was to investigate the feasibility of poly lactic/glycolic acid (PLGA) as a drug delivery carrier of Rho kinase (ROCK) inhibitor for the treatment of corneal endothelial disease. METHOD: ROCK inhibitor Y-27632 and PLGA were dissolved in water with or without gelatin (W1), and a double emulsion [(W1/O)/W2] was formed with dichloromethane (O) and polyvinyl alcohol (W2). Drug release curve was obtained by evaluating the released Y-27632 by using high performance liquid chromatography...
2017: Journal of Ophthalmology
https://www.readbyqxmd.com/read/28816624/comparison-of-two-rabbit-models-with-deficiency-of-corneal-epithelium-and-limbal-stem-cells-established-by-different-methods
#6
Hening Zhang, Shaochun Lin, Min Zhang, Qijiong Li, Weihua Li, Wencong Wang, Minglei Zhao, Yaojue Xie, Zhiquan Li, Mian Huang, Zhichong Wang, Xiulan Zhang, Bing Huang
Limbal stem cell defect model is an important animal model that provides a basis for the study of ocular surface diseases. The rabbit cornea is of moderate size and is widely used in such studies as an experimental animal model. At present, the main modeling methods are alkali burns, and corneal limbus girdling and corneal epithelium doctoring. Each method has its own characteristics. In this study, we observed rabbit models with severe ocular surface defect established by the two methods and changes after amniotic membrane transplantation...
August 14, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28813424/risk-factors-and-causative-organisms-in-microbial-keratitis-in-daily-disposable-contact-lens-wear
#7
Fiona Stapleton, Thomas Naduvilath, Lisa Keay, Cherry Radford, John Dart, Katie Edwards, Nicole Carnt, Darwin Minassian, Brien Holden
PURPOSE: This study investigated independent risk factors and causative organisms in microbial keratitis in daily disposable contact lens (CL)-wearers. METHODS: A multisite prospective case-control study was undertaken. Cases were daily disposable CL-wearers attending Moorfields Eye Hospital with microbial keratitis and those reported through a one-year surveillance study in Australia and in New Zealand. A population-based telephone survey identified daily disposable CL-wearing controls...
2017: PloS One
https://www.readbyqxmd.com/read/28811773/transepithelial-corneal-crosslinking-in-treatment-of-progressive-keratoconus-12-months-clinical-results
#8
Bushra Akbar, Rana Intisar-Ul-Haq, Mazhar Ishaq, Sabahat Arzoo, Kashif Siddique
OBJECTIVE: The purpose of this study was to evaluate the safety and efficacy of transepithelial corneal collagen cross linking (TE-CXL) with modified riboflavin and accelerated UVA irradiance in thin corneas with pachymetry less than 400 microns at thinnest point, untreatable by epithelium off corneal collagen cross linking (CXL) in adult Pakistani population with progressive keratoconus. METHODS: This quasi experimental study included twenty six eyes of 26 patients with progressive keratoconus who underwent accelerated transepithelial CXL in Armed forced institute of ophthalmology with 12 months follow up...
May 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28810564/clinical-efficacy-of-conjunctival-flap-surgery-in-the-treatment-of-refractory-fungal-keratitis
#9
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/28809618/corneal-donations-in-south-africa-a-15-year-review
#10
Nicholas J York, Christopher Tinley
BACKGROUND: Corneal pathology is one of the leading causes of preventable blindness in South Africa (SA). A corneal transplant can restore or significantly improve vision in most cases. However, in SA there is a gross shortage of corneal tissue available to ophthalmologists. Little has been published describing the magnitude of the problem. OBJECTIVES: To describe trends in the number of corneal donors per year in SA, the number of corneal transplants performed each year, the origin of donors, the allocation of corneas to the public or private sector, and the demographics of donors...
July 28, 2017: South African Medical Journal, Suid-Afrikaanse Tydskrif Vir Geneeskunde
https://www.readbyqxmd.com/read/28807717/myofibroblast-transdifferentiation-the-dark-force-in-ocular-wound-healing-and-fibrosis
#11
REVIEW
Daisy Y Shu, Frank J Lovicu
Wound healing is one of the most complex biological processes to occur in life. Repair of tissue following injury involves dynamic interactions between multiple cell types, growth factors, inflammatory mediators and components of the extracellular matrix (ECM). Aberrant and uncontrolled wound healing leads to a non-functional mass of fibrotic tissue. In the eye, fibrotic disease disrupts the normally transparent ocular tissues resulting in irreversible loss of vision. A common feature in fibrotic eye disease is the transdifferentiation of cells into myofibroblasts that can occur through a process known as epithelial-mesenchymal transition (EMT)...
August 12, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28807049/oral-manifestations-dental-management-and-a-rare-homozygous-mutation-of-the-prdm12-gene-in-a-boy-with-hereditary-sensory-and-autonomic-neuropathy-type-viii-a-case-report-and-review-of-the-literature
#12
Karim Elhennawy, Seif Reda, Christian Finke, Luitgard Graul-Neumann, Paul-Georg Jost-Brinkmann, Theodosia Bartzela
BACKGROUND: Hereditary sensory and autonomic neuropathy type VIII is a rare autosomal recessive inherited disorder. Chen et al. recently identified the causative gene and characterized biallelic mutations in the PR domain-containing protein 12 gene, which plays a role in the development of pain-sensing nerve cells. Our patient's family was included in Chen and colleagues' study. We performed a literature review of the PubMed library (January 1985 to December 2016) on hereditary sensory and autonomic neuropathy type I to VIII genetic disorders and their orofacial manifestations...
August 15, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28805541/lack-of-foxe3-coding-mutation-in-a-case-of-congenital-aphakia
#13
Yusuke Sano, Yusuke Matsukane, Akihisa Watanabe, Ko-Hei Sonoda, Hiroyuki Kondo
PURPOSE: To report the findings in a patient with congenital primary aphakia, a rare disease known to be caused by mutations in the FOXE3 gene. METHODS: The clinical appearances and visual functions of the patient were determined from the medical records. Genetic analyses were performed to search for mutations in the FOXE3 gene by Sanger sequencing and whole exome sequencing. RESULTS: The 2-month-old male patient first presented with bilateral congenital aphakia associated with microphthalmia, corneal opacity, and dysplasia of the anterior segment...
August 14, 2017: Ophthalmic Genetics
https://www.readbyqxmd.com/read/28795242/prox1-gfp-flt1-dsred-transgenic-mice-an-animal-model-for-simultaneous-live-imaging-of-angiogenesis-and-lymphangiogenesis
#14
Wei Zhong, Xinbo Gao, Shuangyong Wang, Kyuyeon Han, Masatsugu Ema, Susanne Adams, Ralf H Adams, Mark I Rosenblatt, Jin-Hong Chang, Dimitri T Azar
The roles of angiogenesis in development, health, and disease have been studied extensively; however, the studies related to lymphatic system are limited due to the difficulty in observing colorless lymphatic vessels. But recently, with the improved technique, the relative importance of the lymphatic system is just being revealed. We bred transgenic mice in which lymphatic endothelial cells express GFP (Prox1-GFP) with mice in which vascular endothelial cells express DsRed (Flt1-DsRed) to generate Prox1-GFP/Flt1-DsRed (PGFD) mice...
August 9, 2017: Angiogenesis
https://www.readbyqxmd.com/read/28794073/rock-inhibitors-for-the-treatment-of-ocular-diseases
#15
REVIEW
Ramin Nourinia, Shintaro Nakao, Souska Zandi, Sare Safi, Ali Hafezi-Moghadam, Hamid Ahmadieh
The Rho-kinase/ROCK (Rho-associated coiled-coil-containing protein kinase) pathway is involved in the pathogenesis of multiple ocular and systemic disorders. Recently, ROCK inhibitors have been suggested as novel treatments for various ocular diseases. Several in vitro, in vivo and clinical studies have demonstrated the safety and efficacy of ROCK inhibitors in the management of ocular disorders such as corneal epithelial and endothelial damage, glaucoma, retinal and choroidal neovascularisation, diabetic macular oedema and optic nerve disorders...
August 9, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28791607/treatment-of-dry-eye-disease-with-autologous-platelet-rich-plasma-a-prospective-interventional-non-randomized-study
#16
Jorge L Alio, Alejandra E Rodriguez, Renan Ferreira-Oliveira, Dominika Wróbel-Dudzińska, Ahmed A Abdelghany
INTRODUCTION: The objective of this study was to evaluate the use of autologous platelet-rich plasma (PRP) eye drops as monotherapy for the treatment of moderate to severe cases of dry eye disease. METHODS: Three hundred and sixty-eight patients with moderate to severe dry eye disease (DED) were included in this prospective case series. Subjects were classified as evaporative DED (EDED) or aqueous deficient DED (ADDED). Improvement of the DED subjective symptoms, corneal fluorescein staining (CFS), and corrected distance visual acuity (BCVA) were evaluated...
August 8, 2017: Ophthalmology and Therapy
https://www.readbyqxmd.com/read/28790800/clinical-utility-of-cyclosporine-csa-ophthalmic-emulsion-0-05-for-symptomatic-relief-in-people-with-chronic-dry-eye-a-review-of-the-literature
#17
REVIEW
Michelle K Rhee, Francis S Mah
To review the literature on the efficacy of cyclosporine (CsA) ophthalmic emulsion 0.05% on symptomatic relief in chronic dry eye disease. There is consistent evidence of objective improvements in chronic dry eye disease (Schirmer score, corneal and interpalpebral dye staining, and tear breakup time) with CsA, but variable results with symptomatic improvement, possibly due to patient tolerance of CsA, similar comforting effect with artificial tears and CsA vehicle, and the inherent subjective nature of symptom monitoring and analysis...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28782908/ectodysplasin-a-regulates-epithelial-barrier-function-through-sonic-hedgehog-signalling-pathway
#18
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/28782783/poly-%C3%AE%C2%B5-caprolactone-nanocapsule-carriers-with-sustained-drug-release-single-dose-for-long-term-glaucoma-treatment
#19
Chih-Hung Lee, Yu-Jia Li, Chih-Ching Huang, Jui-Yang Lai
Glaucoma is an eye-related disease accompanied by highly elevated intraocular pressure (IOP), which causes damage to the optic nerve and results in vision loss and even blindness. Although the treatment of glaucoma with eye drops may reduce the IOP, eye drops have some limitations, such as poor patient compliance and short duration. To develop drug carriers that facilitate the sustained and long-term release of drugs for glaucoma therapy, we synthesized poly(ε-caprolactone) nanoparticles (PCL NPs) capable of loading pilocarpine, a widely used drug for the treatment of dry eye and glaucoma...
August 7, 2017: Nanoscale
https://www.readbyqxmd.com/read/28782549/a-review-of-the-evidence-for-in-vivo-corneal-endothelial-regeneration
#20
REVIEW
Bert Van den Bogerd, Sorcha Ní Dhubhghaill, Carina Koppen, Marie-José Tassignon, Nadia Zakaria
Human corneal endothelium has long been thought to be a non-mitotic cell layer with no endogenous reparative potential. Pathologies that damage endothelial function result in corneal decompensation and, if untreated, blindness. The mainstay of treatment involves partial or complete corneal replacement, amounting to 40% of all corneal transplants performed worldwide. We summarize the case reports describing complications post-operatively in the form of (sub)total graft detachment and those resulting in post-operative bare stroma...
August 3, 2017: Survey of Ophthalmology
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