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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
#1
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/28816866/differences-in-tear-film-biochemistry-of-symptomatic-and-asymptomatic-lens-wearers
#2
Simin Masoudi, Fiona J Stapleton, Mark D P Willcox
SIGNIFICANCE: The concentration of selected proteins and inflammatory mediators in tears of symptomatic and asymptomatic contact lens wearers were quantified. The level of leukotriene B4 was higher in the symptomatic group. This may suggest that inflammation can be the cause of discomfort sensation at the end of day. PURPOSE: The present study aims to quantify the concentration of selected tear lipids and proteins in symptomatic and asymptomatic contact lens wearers...
August 14, 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28815191/a-randomized-fellow-eye-comparison-of-keratometry-aberrometry-tear-film-axial-length-and-the-anterior-chamber-depth-after-eye-rubbing-in-non-keratoconic-eyes
#3
Jordan V Chervenkoff, Elizabeth Hawkes, Gabriela Ortiz, Deborah Horney, Mayank A Nanavaty
BACKGROUND: To investigate the effect of eye rubbing on keratometry (K), aberrometry, tear film break-up-time (TFBUT) and anterior chamber depth (ACD). METHODS: Volunteers without any corneal pathology or dry eyes were randomised to rubbing in one eye and the fellow-eye was control. Eye rubbing was performed for 2 min. Primary outcomes studied were anterior and posterior K changes. Secondary outcomes were changes in TFBUT, axial length (AL) & ACD, K changes in various zones, asphericity and aberrometry...
2017: Eye and Vision (London, England)
https://www.readbyqxmd.com/read/28805710/analysis-of-the-pathogenic-factors-and-management-of-dry-eye-in-ocular-surface-disorders
#4
REVIEW
Marcella Nebbioso, Paola Del Regno, Magda Gharbiya, Marta Sacchetti, Rocco Plateroti, Alessandro Lambiase
The tear film represents the interface between the eye and the environment. The alteration of the delicate balance that regulates the secretion and distribution of the tear film determines the dry eye (DE) syndrome. Despite having a multifactorial origin, the main risk factors are female gender and advanced age. Likewise, morphological changes in several glands and in the chemical composition of their secretions, such as proteins, mucins, lipidics, aqueous tears, and salinity, are highly relevant factors that maintain a steady ocular surface...
August 13, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28769593/resolution-of-pinguecula-related-dry-eye-disease-after-argon-laser-photocoagulation
#5
Pietro Emanuele Napoli, Raffaele Sanna, Claudio Iovino, Maurizio Fossarello
PURPOSE: To describe an unusual case of unilateral, chronic symptoms and signs of dry eye, and recurrent episodes of ocular irritation related to pinguecula, which were refractory to prior medical treatments, successfully treated with argon laser photocoagulation. METHODS: A 36-year-old man presented with an elevated yellowish mass on his conjunctiva in his left eye, which was associated with dry eye symptoms and general discomfort, such as "tightening sensation" and "stiffness"...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28761086/serotonin-hormonally-regulates-lacrimal-gland-secretory-function-via-the-serotonin-type-3a-receptor
#6
Toshihiro Imada, Shigeru Nakamura, Ryuji Hisamura, Yusuke Izuta, Kai Jin, Masataka Ito, Naoki Kitamura, Kenji F Tanaka, Masaru Mimura, Izumi Shibuya, Kazuo Tsubota
Tears are extracellular fluid secreted from the lacrimal gland (LG). Tears consist of a dynamic tri-layered film composed of secretions from the LG, Meibomian gland, and conjunctival goblet cells. The LG secretes the aqueous component of the tear, the Meibomian gland secretes the lipid component, and conjunctival goblet cells secrete mucin. The regulation of LG activity via the autonomic nervous system has been recognized as fundamental to maintaining aqueous tear flow. Here, we describe the role of a hormone, peripheral serotonin, in tear secretion...
July 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28759302/evaluation-of-clinical-efficacy-and-safety-of-a-novel-cyclosporin-a-nanoemulsion-in-the-treatment-of-dry-eye-syndrome
#7
Hyun Seung Kim, Tae-Im Kim, Jin Hyoung Kim, Kyung Chul Yoon, Joon Young Hyon, Ko Un Shin, Chul Young Choi
PURPOSE: Topical administration of the anti-inflammatory agent cyclosporin A (CsA) is recommended for long-term management of dry eye syndrome (DES), yet standard ophthalmic CsA preparations have been reported to be unstable. In this trial, the efficacy and safety of Clacier™ (based on a phase 3 study developed by Huons Co. Ltd.), a novel 0.05% CsA nanoemulsion formulation, are compared with those of the conventional Restasis(®) emulsion. METHODS: Patients with moderate-to-severe DES were randomly assigned to receive topical 0...
July 31, 2017: Journal of Ocular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28754246/a-contact-pressure-analysis-comparing-an-all-inside-and-inside-out-surgical-repair-technique-for-bucket-handle-medial-meniscus-tears
#8
Daniel Cole Marchetti, Brian M Phelps, Kimi D Dahl, Erik L Slette, Jacob D Mikula, Grant J Dornan, Gabriella Bucci, Travis Lee Turnbull, Steven B Singleton
PURPOSE: To directly compare effectiveness of the inside-out and all-inside medial meniscal repair techniques in restoring native contact area and contact pressure across the medial tibial plateau at multiple knee flexion angles. METHODS: Twelve male, nonpaired (n = 12), fresh-frozen human cadaveric knees underwent a series of 5 consecutive states: (1) intact medial meniscus, (2) MCL tear and repair, (3) simulated bucket-handle longitudinal tear of the medial meniscus, (4) inside-out meniscal repair, and (5) all-inside meniscal repair...
July 25, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28752695/changes-in-tear-volume-after-3-diquafosol-treatment-in-patients-with-dry-eye-syndrome-an-anterior-segment-spectral-domain-optical-coherence-tomography-study
#9
Kwan Bok Lee, Kyung Min Koh, Young A Kwon, Sang Wroul Song, Byoung Yeop Kim, Jae Lim Chung
PURPOSE: To evaluate changes in the tear meniscus area and tear meniscus height over time in patients with dry eye syndrome, using anterior segment spectral-domain optical coherence tomography after the instillation of 3% diquafosol ophthalmic solution. METHODS: Sixty eyes from 30 patients with mild to moderate dry eye syndrome were included. Tear meniscus images acquired by anterior segment spectral-domain optical coherence tomography were analyzed using National Institutes of Health's image-analysis software (ImageJ 1...
August 2017: Korean Journal of Ophthalmology: KJO
https://www.readbyqxmd.com/read/28743490/clinical-relationship-of-meibometry-with-ocular-symptoms-and-tear-film-stability
#10
Carlos García-Resúa, Hugo Pena-Verdeal, Maria Jesús Giráldez, Eva Yebra-Pimentel
PURPOSE: To evaluate the relationship between meibometry with both ocular symptoms and tear film stability by: (1) to find out whether meibometry is able to differentiate between dry eye symptomatic and asymptomatic subjects classified by standardized dry eye questionnaires (OSDI and McMonnies), and (2) to assess the clinical relationship between meibometry with both tear break-up time (BUT) and maximum blink interval (MBI). METHODS: 140 Patients were recruited for the study...
July 22, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28739099/changes-of-meibomian-glands-in-the-early-stage-of-post-hematopoietic-stem-cell-transplantation
#11
Seonjoo Kim, Young-Sik Yoo, Hyun Seung Kim, Choun-Ki Joo, Kyung-Sun Na
Hematopoietic stem cell transplantation (HSCT) is the most effective cure for hematologic malignancies. Graft-versus-host disease (GVHD) is a major complication following allogeneic HSCT, which significantly affects non-relapse mortality. And ocular manifestations of GVHD are known to occurin 60-90% of patients with chronic GVHD. Although the pathogenesis of ocular GVHD is not clearly known, it is known to progress into inflammation and fibrosis through presentation of antigens on CD4 and CD8 T cells. There is much evidence that the ocular surface and meibomian glands are severely damaged in ocular GVHD patients, and there are few observational studies on the early changes...
July 21, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28736342/tfos-dews-ii-diagnostic-methodology-report
#12
REVIEW
James S Wolffsohn, Reiko Arita, Robin Chalmers, Ali Djalilian, Murat Dogru, Kathy Dumbleton, Preeya Gupta, Paul Karpecki, Sihem Lazreg, Heiko Pult, Benjamin D Sullivan, Alan Tomlinson, Louis Tong, Edoardo Villani, Kyung Chul Yoon, Lyndon Jones, Jennifer Craig
The role of the Tear Film and Ocular Surface Society (TFOS) Dry Eye Workshop (DEWS) II Diagnostic Methodology Subcommittee was 1) to identify tests used to diagnose and monitor dry eye disease (DED), 2) to identify those most appropriate to fulfil the definition of DED and its sub-classifications, 3) to propose the most appropriate order and technique to conduct these tests in a clinical setting, and 4) to provide a differential diagnosis for DED and distinguish conditions where it is a comorbidity. Symptom screening with the DEQ-5 or OSDI confirms that a patient might have DED and triggers the diagnostic tests of (ideally non-invasive) breakup time, osmolarity and ocular surface staining with fluorescein and lissamine green (observing the cornea, conjunctiva and eyelid margin)...
May 4, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28736338/the-tfos-international-dry-eye-workshop-ii-report-of-the-tear-film-subcommittee
#13
REVIEW
Mark D P Willcox, Pablo Argüeso, Georgi Georgiev, Juha Holopainen, Gordon Laurie, Tom Millar, Eric Papas, Jannick Rolland, Tannin Schmidt, Ulrike Stahl, Tatiana Suarez, Lakshman Subbaraman, Omür Uçakhan, Lyndon Jones
The members of the Tear Film Subcommittee reviewed the role of the tear film in dry eye disease (DED). The Subcommittee reviewed biophysical and biochemical aspects of tears and how these change in DED. Clinically, DED is characterized by loss of tear volume, more rapid breakup of the tear film and increased evaporation of tears from the ocular surface. The tear film is composed of many substances including lipids, proteins, mucins and electrolytes. All of these contribute to the integrity of the tear film but exactly how they interact is still an area of active research...
March 30, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28736335/tfos-dews-ii-definition-and-classification-report
#14
REVIEW
Jennifer P Craig, Kelly K Nichols, Esen K Akpek, Barbara Caffery, Harminder S Dua, Choun-Ki Joo, Zuguo Liu, J Daniel Nelson, Jason J Nichols, Kazuo Tsubota, Fiona Stapleton
The goals of the TFOS DEWS II Definition and Classification Subcommittee were to create an evidence-based definition and a contemporary classification system for dry eye disease (DED). The new definition recognizes the multifactorial nature of dry eye as a disease where loss of homeostasis of the tear film is the central pathophysiological concept. Ocular symptoms, as a broader term that encompasses reports of discomfort or visual disturbance, feature in the definition and the key etiologies of tear film instability, hyperosmolarity, and ocular surface inflammation and damage were determined to be important for inclusion in the definition...
July 2017: Ocular Surface
https://www.readbyqxmd.com/read/28733649/an-in-vitro-model-for-the-ocular-surface-and-tear-film-system
#15
Qiaozhi Lu, Hongbo Yin, Michael P Grant, Jennifer H Elisseeff
Dry eye is a complicated ocular surface disease whose exact pathogenesis is not yet fully understood. For the therapeutic evaluation and pathogenesis study of dry eye, we established an in vitro three-dimensional (3D) coculture model for the ocular surface. It is composed of rabbit conjunctival epithelium and lacrimal gland cell spheroids, and recapitulates the aqueous and mucin layers of the tear film. We first investigated the culture conditions for both cell types to optimize their secretory functions, by employing goblet cell enrichment, air-lifting culture, and 3D spheroid formation techniques...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28728282/-epidemiologic-study-of-tear-film-lipid-layer-thickness-measurement-in-the-population-of-taishitun-community-in-beijing
#16
Q F Liang, X H Du, Y D Su, N L Wang, Z J Wei, Antoine Labbé
Objective: To investigate the distribution of tear film lipid layer thickness (LLT) and the relationship between symptoms and signs of dry eye and tear film LLT in the population of Taishitun Community in Beijing. Methods: A cross-sectional study. From May 2016 to August 2016, three streets of Taishitun Community were randomly selected as survey districts and 540 persons were taken as investigation subjects. Every participant completed 6 items of dry eye examinations as follows: questionnaire (Ocular Surface Disease Index, OSDI), measurement of tear film LLT, tear film break-up time (TBUT), corneal and conjunctival staining, SchirmerⅠtest and the infrared meibomian photography...
July 11, 2017: [Zhonghua Yan Ke za Zhi] Chinese Journal of Ophthalmology
https://www.readbyqxmd.com/read/28718823/surface-chemistry-interactions-of-cationorm-with-films-by-human-meibum-and-tear-film-compounds
#17
Georgi As Georgiev, Norihiko Yokoi, Yana Nencheva, Nikola Peev, Philippe Daull
Cationorm(®) (CN) cationic nanoemulsion was demonstrated to enhance tear film (TF) stability in vivo possibly via effects on tear film lipid layer (TFLL). Therefore the interactions of CN with human meibum (MGS) and TFLL in vitro and in vivo deserve special study. MGS and CN were spread at the air/water interface of a Langmuir surface balance to ensure a range of MGS/CN oil phase ratios: 20/1, 10/1, 5/1, 3/1, 2/1 and 1/1. The films capability to reorganize during dynamic area changes was evaluated via the surface pressure-area compression isotherms and step/relaxation dilatational rheology studies...
July 18, 2017: International Journal of Molecular Sciences
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/28706404/dry-eye-syndrome-in-menopause-and-perimenopausal-age-group
#19
REVIEW
Travis Peck, Leslie Olsakovsky, Shruti Aggarwal
Dry eye disease (DED) is a multifactorial ocular surface disease that causes symptoms of ocular pain, discomfort, and decreased visual acuity. It significantly affects quality of life of patients. It is more prevalent in the females and is being specifically in the menopausal and postmenopausal age group. This is believed to be due to the changes in balance of sex hormones. Sex hormones - estrogens and androgens - influence production of all components of the tear film including aqueous layer, lipid, and mucin...
April 2017: Journal of Mid-life Health
https://www.readbyqxmd.com/read/28699061/hydroxypropyl-methylcellulose-2-for-dry-eye-prevention-during-phacoemulsification-in-senile-and-diabetic-patients
#20
Maierhaba Yusufu, Xin Liu, Tianyu Zheng, Fan Fan, Jianjiang Xu, Yi Luo
PURPOSE: To assess the effect of hydroxypropyl methylcellulose (HPMC) 2% to prevent dry eye during phacoemulsification in senile and diabetic patients. METHODS: This prospective interventional case series comprised 60 eyes (44 patients) with age-related cataract scheduled for standardized phacoemulsification surgery. The patients were assigned to receive either balanced saline solution (BSS, 30 eyes) or HPMC 2% (30 eyes) during surgery. Preoperative and postoperative examinations (1, 3, 7 and 30 days) included measurements of automatic noninvasive tear film breakup time (NITBUT), fluorescein staining, Schirmer I test, tear meniscus height, depth and area and subjective symptoms...
July 11, 2017: International Ophthalmology
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