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Cornea

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https://www.readbyqxmd.com/read/29140862/retroprosthetic-membrane-formation-in-boston-keratoprosthesis-a-case-control-matched-comparison-of-titanium-versus-pmma-backplate
#1
Rushi K Talati, Joelle A Hallak, Faris I Karas, Jose de la Cruz, M Soledad Cortina
PURPOSE: Retroprosthetic membrane (RPM) formation is the most common complication after Boston type 1 keratoprosthesis (KPro) implantation. It affects visual acuity and can predispose to corneal melt. Two KPro backplate materials are available: titanium and polymethyl methacrylate (PMMA). This study investigates the influence of the KPro backplate material on visually significant RPM formation. METHODS: A retrospective case-control-matched study involving 40 patients; 20 eyes implanted with a titanium backplate KPro were case-matched with 20 eyes implanted with a PMMA backplate KPro between 2007 and 2015 with 1-year minimum follow-up...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29140861/sealing-of-corneal-lacerations-using-photoactivated-rose-bengal-dye-and-amniotic-membrane
#2
Timothy A Soeken, Hong Zhu, Sheri DeMartelaere, Brett W Davies, Mirang Kim, Heuy-Ching Wang, James Aden, Rose Grimm, Clemens Alt, Irene E Kochevar, Anthony J Johnson
PURPOSE: Watertight closure of perforating corneoscleral lacerations is necessary to prevent epithelial ingrowth, infection, and potential loss of the eye. Complex lacerations can be difficult to treat, and repair with sutures alone is often inadequate. In this study, we evaluated a potentially sutureless technology for sealing complex corneal and scleral lacerations that bonds the amniotic membrane (AM) to the wound using only green light and rose bengal dye. METHODS: The AM was impregnated with rose bengal and then sealed over lacerations using green light to bond the AM to the deepithelialized corneal surface...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29111995/diagnostic-evaluation-of-co-occurrence-of-acanthamoeba-and-fungi-in-keratitis-a-preliminary-report
#3
Anita Raghavan, Shaffie Baidwal, Prabhu Vijayaraghavan, Sakthi Rajeswari, Revathi Rajaraman, Narendran Venkatapathy, Sunitha Menon, Ram Rammohan
PURPOSE: To test the hypothesis that the coexistence of Acanthamoeba with other forms of microbial keratitis, especially fungal keratitis (FK), is more prevalent than suspected. METHODS: A prospective diagnostic study whereby patients presenting with stromal keratitis were additionally tested for Acanthamoeba, irrespective of the initial diagnosis. In addition to the routine workup with Gram stain, KOH mount, and cultures on blood agar and potato dextrose agar, nonnutrient agar was included...
November 14, 2017: Cornea
https://www.readbyqxmd.com/read/29135713/reply
#4
Arun D Singh
No abstract text is available yet for this article.
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135712/limbal-stem-cell-preservation-during-proton-beam-irradiation-for-diffuse-iris-melanoma
#5
Paul T Finger, Wolfgang A G Sauerwein
No abstract text is available yet for this article.
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135711/artificial-anterior-chamber-pressure-and-corneal-thinning-rate-in-ut-dsaek
#6
Mohit Parekh, Alessandro Ruzza, Davide Borroni, Stephen B Kaye, Vito Romano
No abstract text is available yet for this article.
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135710/adjustment-of-intrastromal-corneal-ring-segments-after-unsuccessful-implantation-in-keratoconic-eyes
#7
Tiago Monteiro, José Ferreira Mendes, Fernando Faria-Correia, Nuno Franqueira, David Madrid-Costa, José F Alfonso
PURPOSE: To evaluate visual, refractive, and corneal topography outcomes in eyes with keratoconus that have undergone exchange/adjustment surgery with a new intrastromal corneal ring segment (ICRS) combination after unsuccessful visual and/or refractive outcomes after primary ICRS surgery. METHODS: A retrospective nonrandomized case series was conducted including consecutive eyes of patients with keratoconus that underwent ICRS adjustment after an unsuccessful visual outcome...
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135709/pilot-study-comparing-topical-anesthetic-agents-in-pterygium-surgery-subconjunctival-injection-versus-2-lidocaine-gel-versus-5-lidocaine-gel
#8
Felipe Pereira, Hélio Francisco Shiroma, Muller Gonçalves Urias, Verônica Haysa Yamada, Acácio Alves de Souza Lima, Ana Luisa Hofling-Lima, Michel Eid Farah, Eduardo Buchele Rodrigues
PURPOSE: To compare the efficacy of different concentrations of topical lidocaine gel with standard subconjunctival anesthesia. METHODS: This was a prospective randomized controlled pilot study with 3 different groups. Group SC received subconjunctival lidocaine and proparacaine drops as needed during surgery. Group L2 received 2% lidocaine gel and group L5 received 5% lidocaine gel. Both lidocaine gel groups could receive another gel dose as needed during the procedure...
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135708/high-permeability-and-intercellular-space-widening-with-brimonidine-tartrate-eye-drops-in-cultured-stratified-human-corneal-epithelial-sheets
#9
Yumi Hashimoto, Seiichi Yokoo, Tomohiko Usui, Yukiko Tsubota, Satoru Yamagami
PURPOSE: To investigate the toxicity of topical glaucoma medications using cultured stratified human corneal epithelial sheets (HCES). METHODS: HCES were exposed for 30 minutes to the following glaucoma medications: 0.1% brimonidine with sodium chlorite as the preservative, 0.005% latanoprost with 0.02% benzalkonium chloride (BAC) as the preservative, and 0.5% timolol with 0.005% BAC as the preservative. Then, cell viability and barrier function were tested by the WST-1 assay and carboxyfluorescein permeability assay, respectively...
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135707/outcome-of-therapeutic-keratoplasty-in-hopeless-microbial-keratitis-cases-otherwise-advised-evisceration
#10
Rajat Jain, Karma L Bhutia, Neha Mohan, Col K C Gupta, Ashwani Ghai
PURPOSE: To study the outcome of therapeutic keratoplasty in severe microbial keratitis cases otherwise advised evisceration. METHODS: A retrospective, single-center clinical audit included 28 patients with severe microbial keratitis presenting from April 2014 to April 2016. Patients with microbial keratitis either affecting more than 2 quadrants of the limbus and/or cases with infections involving more than 180 mm of the cornea who were advised evisceration by more than one ophthalmologist were included...
November 13, 2017: Cornea
https://www.readbyqxmd.com/read/29135567/benign-reactive-lymphoid-hyperplasia-of-the-conjunctiva-treated-with-cyclosporine
#11
Rupin N Parikh, Harpal S Sandhu, Giacomina Massaro-Giordano, Scott M Goldstein, Joan M OʼBrien
PURPOSE: To describe a case of reactive lymphoid hyperplasia (RLH) of the conjunctiva responding to cyclosporine immunosuppressant monotherapy. METHODS: A 66-year-old man with a 2-year history of biopsy-proven bilateral RLH presented for dry eye evaluation with chief complaints of burning, stinging, and irritation in both eyes. After slit-lamp examination and positive findings of matrix metalloproteinase 9 in the patient's tear film, he was diagnosed with meibomian gland dysfunction and tear-insufficiency dry eye disease...
November 10, 2017: Cornea
https://www.readbyqxmd.com/read/29135606/reply
#12
Alfonso Vasquez-Perez, Christopher Liu
No abstract text is available yet for this article.
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29135605/novel-method-to-detect-corneal-lymphatic-vessels-in-vivo-by-intrastromal-injection-of-fluorescein
#13
Viet Nhat Hung Le, Yanhong Hou, Jens Horstmann, Felix Bock, Claus Cursiefen
PURPOSE: Corneal lymphatic vessels are clinically invisible because of their thin walls and clear lymph fluid. There is no easy and established method for in vivo imaging of corneal lymphatic vessels so far. In this study, we present a novel approach to visualize corneal lymphatic vessels in vivo by injecting intrastromal fluorescein sodium. METHODS: Six- to eight-week-old female BALB/c mice were used in the mouse model of suture-induced corneal neovascularization...
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29135604/chemical-burns-of-the-eye-the-role-of-retinal-injury-and-new-therapeutic-possibilities
#14
Claes H Dohlman, Fabiano Cade, Caio V Regatieri, Chengxin Zhou, Fengyang Lei, Alja Crnej, Mona Harissi-Dagher, Marie-Claude Robert, George N Papaliodis, Dongfeng Chen, James V Aquavella, Esen K Akpek, Anthony J Aldave, Kimberly C Sippel, Donald J DʼAmico, Jan G Dohlman, Per Fagerholm, Liqiang Wang, Lucy Q Shen, Miguel González-Andrades, James Chodosh, Kenneth R Kenyon, C Stephen Foster, Roberto Pineda, Samir Melki, Kathryn A Colby, Joseph B Ciolino, Demetrios G Vavvas, Shigeru Kinoshita, Reza Dana, Eleftherios I Paschalis
PURPOSE: To propose a new treatment paradigm for chemical burns to the eye - in the acute and chronic phases. METHODS: Recent laboratory and clinical data on the biology and treatment of chemical burns are analyzed. RESULTS: Corneal blindness from chemical burns can now be successfully treated with a keratoprosthesis, on immediate and intermediate bases. Long term outcomes, however, are hampered by early retinal damage causing glaucoma. New data suggest that rapid diffusion of inflammatory cytokines posteriorly (TNF-α, etc) can severely damage the ganglion cells...
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29135603/role-of-hemidivisional-corneal-topographic-astigmatisms-corts-in-the-regularization-and-reduction-of-irregular-astigmatism
#15
Noel Alpins, James K Y Ong, George Stamatelatos
PURPOSE: To demonstrate how the concept of hemidivisional corneal topographic astigmatism (hemiCorT) enables the planning of hemidivisional corneal treatments to reduce irregularity and overall astigmatism. METHODS: Whole-of-cornea corneal topographic astigmatism (CorT) is calculated from topography data derived from a corneal topographer or tomographer. The cornea is conceptually divided into 2 hemidivisions along the flat meridian of the CorT. For each hemidivision, hemiCorTs are calculated...
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29135602/ocular-surface-alterations-in-the-context-of-corneal-in-vivo-confocal-microscopic-characteristics-in-patients-with-fibromyalgia
#16
Kadriye Erkan Turan, Sibel Kocabeyoglu, Isin Unal-Cevik, Figen Bezci, Aysen Akinci, Murat Irkec
PURPOSE: To quantify the morphology of corneal basal epithelium and subbasal nerves and to evaluate the ocular surface alterations in patients with fibromyalgia (FM). METHODS: Patients with FM (n = 34) and healthy controls (n = 42) were enrolled. All participants underwent ocular surface tests in the following order: corneal sensitivity, tear film breakup time, lissamine green staining, Schirmer test, and the Ocular Surface Disease Index questionnaire. Basal epithelial cells and subbasal nerves were evaluated using in vivo confocal microscopy (IVCM)...
November 9, 2017: Cornea
https://www.readbyqxmd.com/read/29120898/reply
#17
Silvia Berisa Prado, Ana C Riestra Ayora
No abstract text is available yet for this article.
November 8, 2017: Cornea
https://www.readbyqxmd.com/read/29120897/corneal-endothelial-and-myotonic-dystrophy
#18
Maddalena De Bernardo, Nicola Rosa
No abstract text is available yet for this article.
November 8, 2017: Cornea
https://www.readbyqxmd.com/read/29120896/artificial-anterior-chamber-model-using-human-donor-corneas-for-dmek-surgical-training
#19
Rajesh Fogla, Richard Martinez
No abstract text is available yet for this article.
November 8, 2017: Cornea
https://www.readbyqxmd.com/read/29112508/estrogen-modulates-corneal-nociception-and-maintains-corneal-homeostasis-in-rat-eye
#20
Vinod Kumar, Vishma Pratap Sur, Rajdeep Guha, Aditya Konar, Sarbani Hazra
PURPOSE: To evaluate the role of estrogen in corneal nociception, its influence on lacrimal secretion, and development of dry eye. METHODS: Ovariectomy was performed in normal healthy female rats (OVX). Estrogen replacement was performed in a population of these rats (OVX+E). Tests for dry eye and corneal sensitivity were performed and compared with rats in proestrus (PRO) as controls. Gene expression of neuropeptides such as substance P, calcitonin gene receptor-like protein (CGRP), estrogen receptor α, TRPV1, and TRPM8 was evaluated in the cornea and trigeminal ganglion...
November 6, 2017: Cornea
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