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Ocular Surface

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https://www.readbyqxmd.com/read/27919798/femtosecond-laser-assisted-conjunctival-autograft-preparation-for-pterygium-surgery
#1
REVIEW
Matthias Fuest, Yu-Chi Liu, Gary Hin-Fai Yam, Ericia Pei Wen Teo, Hla Myint Htoon, Minas T Coroneo, Jodhbir S Mehta
PURPOSE: Pterygium is a common ocular surface disorder. Conjunctival autografting (CAG) following pterygium resection is the gold standard treatment. CAGs without Tenon's tissue provide better results but are more technically difficult to achieve. In this study, we evaluated the feasibility and reproducibility of femtosecond laser (FSL)-assisted CAG preparation. METHODS: Fifteen porcine globes were fixed in a suction holder and CAGs of different diameters were created by 1) an experienced consultant and 2) a less experienced fellow using the Ziemer LDV Z8...
December 2, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27913232/visual-acuity-and-quality-of-life-in-dry-eye-disease-proceedings-of-the-ocean-group-meeting
#2
José Benítez-Del-Castillo, Marc Labetoulle, Christophe Baudouin, Maurizio Rolando, Yonca A Akova, Pasquale Aragona, Gerd Geerling, Jesús Merayo-Lloves, Elisabeth M Messmer, Kostas Boboridis
Dry eye disease (DED) results in tear film instability and hyperosmolarity, inflammation of the ocular surface and, ultimately, visual disturbance that can significantly impact a patient's quality of life. The effects on visual acuity result in difficulties with driving, reading and computer use and negatively impact psychological health. These effects also extend to the workplace, with a loss of productivity and quality of work causing substantial economic losses. The effects of DED and the impact on vision experienced by patients may not be given sufficient importance by ophthalmologists...
November 29, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27871774/bias-to-basis
#3
EDITORIAL
J Daniel Nelson
No abstract text is available yet for this article.
November 15, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27871773/generally-regarded-as-safe
#4
LETTER
Gary D Novack
No abstract text is available yet for this article.
November 15, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27840126/the-intriguing-role-of-neuropeptides-at-the-ocular-surface
#5
REVIEW
Francesco Sabatino, Antonio Di Zazzo, Luca De Simone, Stefano Bonini
In recent decades, the role of neuropeptides in physiology and pathology has been elucidated. Various neuropeptides are expressed at the ocular surface, where they facilitate the crosstalk between immune and nervous systems. They actively regulate trophic and immune functions and orchestrate neuroinflammation. The purpose of this manuscript is to review the expression of the neuropeptides SP, VIP, CGRP, and NPY at the ocular surface, focusing on their role in tropism and immunity, and to summarize their functions in ocular immune privilege, infection, dry eye, and allergic eye disease...
November 10, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27816571/corneal-nerve-and-epithelial-cell-alterations-in-corneal-allodynia-an-in-vivo-confocal-microscopy-case-series
#6
Pedram Hamrah, Yureeda Qazi, Bashar Shahatit, Mohammad H Dastjerdi, Deborah Pavan-Langston, Deborah S Jacobs, Perry Rosenthal
PURPOSE: To investigate the morphological changes of the corneal epithelium and sub-basal nerves in patients with corneal allodynia using in vivo confocal microscopy (IVCM). DESIGN: Case-control study of patients with corneal allodynia and healthy controls. METHODS: Ten eyes of six patients were diagnosed with corneal allodynia at a single center and compared to fifteen healthy eyes. IVCM of the central cornea was performed on all subjects and controls...
November 2, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27816570/examination-of-gland-dropout-detected-on-infrared-meibography-by-using-optical-coherence-tomography-meibography
#7
Young-Sik Yoo, Kyung-Sun Na, Yong-Soo Byun, Jun Geun Shin, Byeong Ha Lee, Geunyoung Yoon, Tae Joong Eom, Choun-Ki Joo
PURPOSE: To elucidate the anatomic details of gland dropout detected on two-dimensional infrared (IR) meibography in cases of dry eye associated with meibomian gland dysfunction (MGD) by using three-dimensional optical coherence tomography (OCT) meibography. METHODS: In this cross-sectional, observational case series, we enrolled gland dropout detected on IR meibography; the condition was then examined using a real-time swept-source OCT system. Accordingly, a series of 500 raster B-scan OCT images, with the gland dropout site (observed on IR imaging) at the center, were obtained and rendered as three-dimensional volume images...
November 2, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27789276/tear-fluid-protein-changes-in-dry-eye-syndrome-associated-with-rheumatoid-arthritis-a-proteomic-approach
#8
Saijyothi Venkata Aluru, Agarwal Shweta, Srinivasan Bhaskar, Krishnan Geetha, Rajappa M Sivakumar, Tatu Utpal, Prema Padmanabhan, Narayanasamy Angayarkanni
PURPOSE: Sjögren syndrome (SS) secondary to rheumatoid arthritis (RA) affects lacrimal and salivary glands, and therefore dry eye syndrome (DES) is more prevalent in patients with RA. This study used a proteomic approach to identify potential biomarkers in tear of DES secondary to RA (DES-RA). METHODS: Tear specimens were collected with Schirmer strips from patients with DES with RA, patients with other types of dry eye (namely, primary Sjögrens and non-Sjögrens [NSS]), and age-matched controls...
October 24, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27771327/in-vivo-confocal-microscopy-of-corneal-nerves-in-health-and-disease
#9
REVIEW
Andrea Cruzat, Yureeda Qazi, Pedram Hamrah
In vivo confocal microscopy (IVCM) is becoming an indispensable tool for studying corneal physiology and disease. Enabling the dissection of corneal architecture at a cellular level, this technique offers fast and noninvasive in vivo imaging of the cornea with images comparable to that of ex vivo histochemical techniques. Corneal nerves bear substantial relevance to clinicians and scientists alike, given their pivotal roles in regulation of corneal sensation, maintenance of epithelial integrity, and proliferation and promotion of wound healing...
October 19, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27725302/new-perspectives-on-dry-eye-definition-and-diagnosis-a-consensus-report-by-the-asia-dry-eye-society
#10
Kazuo Tsubota, Norihiko Yokoi, Jun Shimazaki, Hitoshi Watanabe, Murat Dogru, Masakazu Yamada, Shigeru Kinoshita, Hyo-Myung Kim, Hung-Won Tchah, Joon Young Hyon, Kyung-Chul Yoon, Kyoung Yul Seo, Xuguang Sun, Wei Chen, Lingyi Liang, Li Mingwu, Zuguo Liu
For the last 20 years, a great amount of evidence has accumulated through epidemiological studies that most of the dry eye disease encountered in daily life, especially in video display terminal (VDT) workers, involves short tear film breakup time (TFBUT) type dry eye, a category characterized by severe symptoms but minimal clinical signs. An unstable tear film also affects the visual function, possibly due to the increase of higher order aberrations. Based on the change in the understanding of the types, symptoms, and signs of dry eye disease, the Asia Dry Eye Society agreed to the following definition of dry eye: "Dry eye is a multifactorial disease characterized by unstable tear film causing a variety of symptoms and/or visual impairment, potentially accompanied by ocular surface damage...
October 7, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27678525/defining-ocular-surface-disease-activity-and-damage-indices-by-an-international-delphi-consultation
#11
Priscilla A Mathewson, Geraint P Williams, Stephanie L Watson, James Hodson, Anthony J Bron, Saaeha Rauz
PURPOSE: Unifying terminology for the description of ocular surface disease (OSD) is vital for determining treatment responses and ensuring robust clinical trial outcomes. To date, there are no agreed parameters describing 'activity' and 'damage' phases of disease. METHODS: A working group of international experts in OSD, oculoplastics, and uveitis from a range of backgrounds (university, teaching, district general and private hospitals) participated in a modified Delphi consensus-building exercise (October 31, 2011 to March 20, 2015)...
September 24, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27670247/human-tear-fluid-reduces-culturability-of-contact-lens-associated-pseudomonas-aeruginosa-biofilms-but-induces-expression-of-the-virulence-associated-type-iii-secretion-system
#12
Yvonne T Wu, Connie Tam, Lucia S Zhu, David J Evans, Suzanne M J Fleiszig
PURPOSE: The type III secretion system (T3SS) is a significant virulence determinant for Pseudomonas aeruginosa. Using a rodent model, we found that contact lens (CL)-related corneal infections were associated with lens surface biofilms. Here, we studied the impact of human tear fluid on CL-associated biofilm growth and T3SS expression. METHODS: P. aeruginosa biofilms were formed on contact lenses for up to 7 days with or without human tear fluid, then exposed to tear fluid for 5 or 24 h...
September 23, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27650263/current-and-upcoming-therapies-for-ocular-surface-chemical-injuries
#13
Alireza Baradaran-Rafii, Medi Eslani, Zeeshan Haq, Ebrahim Shirzadeh, Michael J Huvard, Ali R Djalilian
Chemical injuries frequently result in vision loss, disfigurement, and challenging ocular surface complications. Acute interventions are directed at decreasing the extent of the injury, suppressing inflammation, and promoting ocular surface re-epithelialization. Chronically, management involves controlling inflammation along with rehabilitation and reconstruction of the ocular surface. Future therapies aimed at inhibiting neovascularization and promoting ocular surface regeneration should provide more effective treatment options for the management of ocular chemical injuries...
September 17, 2016: Ocular Surface
https://www.readbyqxmd.com/read/27742001/natural-does-not-mean-safe
#14
Gary D Novack
No abstract text is available yet for this article.
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27567542/dogma
#15
J Daniel Nelson
No abstract text is available yet for this article.
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27555566/abnormal-anterior-corneal-morphology-in-diabetes-observed-using-in%C3%A2-vivo-laser-scanning-confocal-microscopy
#16
Cirous Dehghani, Nicola Pritchard, Katie Edwards, Anthony W Russell, Rayaz A Malik, Nathan Efron
PURPOSE: To assess if diabetes alters corneal epithelial, anterior stromal and subbasal nerve plexus morphology and to determine the associations between these and other clinical variables. METHODS: A cohort of 78 participants with diabetes (39 with Type 1 and 39 with Type 2 diabetes) and 29 age-matched healthy controls underwent laser-scanning confocal microscopy of the central cornea. Intermediate cell density (ICD), basal cell density (BCD), anterior stromal cell density (ASCD), corneal nerve fiber density (CNFD) and nerve fiber length (CNFL) were quantified...
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27531629/ppar%C3%AE-regulates-mouse-meibocyte-differentiation-and-lipid-synthesis
#17
James V Jester, Eric Potma, Donald J Brown
PURPOSE: Previous reports suggest that age-related meibomian gland atrophy is associated with decreased expression of the lipid-sensitive nuclear receptor, PPARγ. The purpose of this study was to identify the role of PPARγ in modulating meibocyte lipid synthesis. METHODS: Cytoplasmic and nuclear fractions from meibomian glands of young (2M) and old (2Y) C57Bl6 mice were probed using antibodies specific for PPARγ. Mouse meibocytes were cultured, immortalized using a SV40 lentiviral vector, and evaluated for lipid synthesis using LipidTox staining and CARS/Raman microspectroscopy...
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27520448/identifying-the-palisades-of-vogt-in-human-ex%C3%A2-vivo-tissue
#18
Ian A Sigal, Jessica Steele, Scott Drexler, Kira L Lathrop
PURPOSE: The Palisades of Vogt (POV) constitute the corneal epithelial stem cell niche, but identification of this region in ex vivo tissue is difficult. Here we introduce a simple, direct method of identifying the POV in unsectioned, ex vivo human tissue. METHODS: Twenty-two eyes were studied, four whole and eighteen rims. Orientation of whole eyes was determined and the eyes were marked to maintain their cardinal orientation prior to dissection. Samples were imaged with brightfield, linearly polarized light and transmitted circularly polarized light (CPL), and optical coherence tomography (OCT) volumes were acquired in all twelve clock hrs around the limbus...
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27503376/osteokeratoprosthesis-using-tibial-bone-surgical-technique-and-outcomes
#19
Victor Charoenrook, Ralph Michael, Maria Fideliz de la Paz, Angela Ding, Rafael I Barraquer, Jose Temprano
PURPOSE: To analyze the anatomical and functional results of keratoprosthesis using tibial bone autograft. METHODS: We reviewed 113 charts of patients who underwent tibial bone osteokeratoprothesis implantation at the Centro de Oftalmologia Barraquer. Kaplan-Meier survival curves with 95% confidence interval were calculated for functional success, defined as best corrected visual acuity (BCVA) ≥0.05 on the decimal scale, and for anatomical success, defined as retention of the keratoprosthesis lamina...
October 2016: Ocular Surface
https://www.readbyqxmd.com/read/27480488/contact-lens-induced-limbal-stem-cell-deficiency
#20
REVIEW
Jennifer Rossen, Alec Amram, Behrad Milani, Dongwook Park, Jennifer Harthan, Charlotte Joslin, Timothy McMahon, Ali Djalilian
Limbal stem cell deficiency (LSCD) is a pathologic condition caused by the dysfunction and/or destruction of stem cell precursors of the corneal epithelium, typified clinically by corneal conjunctivalization. The purpose of this review is to critically discuss a less well-known cause of limbal stem cell disease: contact lens (CL) wear. A literature search was conducted to include original articles containing patients with CL-induced LSCD. This review describes epidemiology, diagnostic strategies, pathogenesis, differential diagnosis, and treatment modalities for this condition...
October 2016: Ocular Surface
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