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Meibomian glands

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https://www.readbyqxmd.com/read/28544605/assessment-of-meibomian-glands-and-tear-film-in-post-refractive-surgery-patients
#1
Ji Won Jung, Jung Yong Kim, Hee Seung Chin, Young Ju Suh, Tae-Im Kim, Kyoung Yul Seo
IMPORTANCE: Corneal refractive surgery may impact meibomian gland and tear film in post-refractive surgery patients. BACKGROUND: To compare ocular surface parameters between post-refractive surgery patients and normal controls. DESIGN: Cross-sectional single center study PARTICIPANTS: A total of 120 eyes of 120 subjects were divided into three groups: (i) 60 controls and 60 patients underwent corneal refractive surgery at least 12 months ago; (ii) 30 post-laser in-situ keratomileusis (LASIK) patients and (iii) 30 post-laser epithelial keratomileusis (LASEK)/photo-refractive keratectomy (PRK) patients...
May 22, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28533678/effect-of-thermal-pulsation-treatment-on-tear-film-parameters-in-dry-eye-disease-patients
#2
Michelle J Kim, Sandra S Stinnett, Preeya K Gupta
PURPOSE: The goal of this study was to evaluate the effect of thermal pulsation treatment on tear film parameters, specifically osmolarity and matrix metalloproteinase-9 (MMP-9), in patients with meibomian gland dysfunction (MGD) and dry eye disease (DED). METHODS: A single-center review of 189 eyes that underwent thermal pulsation treatment was performed. Data were collected on pre and posttreatment osmolarity, MMP-9, tear break-up time (TBUT), and ocular surface disease index (OSDI) score...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28524885/ocular-surface-analysis-in-hematological-patients-before-and-after-allogeneic-hematopoietic-stem-cell-transplantation-implication-for-daily-clinical-practice
#3
G Giannaccare, F Bonifazi, M Sessa, E Dan, M Arpinati, M Fresina, G Bandini, M Cavo, P Versura, E C Campos
PurposeTo evaluate ocular surface parameters before and after hematopoietic stem cell transplantation (HSCT) and to correlate them with clinical and transplant variables.MethodsThis is a retrospective analysis of data from 93 patients affected by hematological malignancies undergoing HSCT. Values from Ocular Surface Disease Index, Schirmer test, Break-up Time, ocular surface staining, and Meibomian Gland Dysfunction score obtained before HSCT and 3-6 months after were retrieved from charts. Diagnosis and staging of dry eye (DE) disease was performed according to Dry Eye WorkShop criteria...
May 19, 2017: Eye
https://www.readbyqxmd.com/read/28510629/fibroblast-growth-factor-receptor-2-fgfr2-is-required-for-meibomian-gland-homeostasis-in-the-adult-mouse
#4
Lixing W Reneker, Lanlan Wang, Rebecca T Irlmeier, Andrew J W Huang
Purpose: Little is known about the signaling mechanisms controlling meibomian gland (MG) homeostasis and the pathogenic processes leading to MG atrophy and dysfunction in dry eye disease (DED). We investigated the role of fibroblast growth factor receptor 2 (FGFR2) in the MG homeostasis of adult mice. Methods: A triple transgenic mouse strain (Krt14-rtTA; tetO-Cre; Fgfr2flox/flox), referred to as Fgfr2CKO mice, was generated in which the Fgfr2 gene is ablated by Cre recombinase in keratin 14 (Krt14)-expressing epithelial cells on doxycycline (Dox) induction...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28501443/meibomian-gland-dysfunction-and-its-determinants-in-iranian-adults-a-population-based-study
#5
Hassan Hashemi, Hadith Rastad, Mohammad Hassan Emamian, Akbar Fotouhi
PURPOSE: To estimate the prevalence of Meibomian gland dysfunction (MGD) and determine the associated factors in the general population in Iran. METHODS: This cross-sectional study is based on the data from the second phase of the Shahroud Eye Cohort Study conducted in 2014. Of the 4737 participants of the second phase, data was available for 4700 people; their mean age was 55.9±6.2 years and 2768 (58.9%) were women. Diagnosis of MGD was made based on the classification of the International Workshop on MGD as judged by the examining ophthalmologist...
May 10, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28496300/prospective-evaluation-of-intense-pulsed-light-and-meibomian-gland-expression-efficacy-on-relieving-signs-and-symptoms-of-dry-eye-disease-due-to-meibomian-gland-dysfunction
#6
Steven J Dell, Ronald N Gaster, Sheila C Barbarino, Derek N Cunningham
PURPOSE: The aim of this study was to estimate the efficacy of intense pulsed light (IPL), followed by meibomian gland expression (MGX), for reducing the number and severity of signs and symptoms of dry eye disease (DED) secondary to meibomian gland dysfunction (MGD). PATIENTS AND METHODS: In a prospective study conducted in two sites, 40 subjects (80 eyes) with moderate to severe MGD were enrolled. Major inclusion criteria consisted of at least two of the following measures being compatible with DED in both eyes: tear breakup time (TBUT), meibomian gland score (MGS), corneal fluorescein staining (CFS), Standard Patient Evaluation of Eye Dryness (SPEED) questionnaire, and tear film osmolarity (TFO)...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28476050/influence-of-pilocarpine-and-timolol-on-human-meibomian-gland-epithelial-cells
#7
Yi Zhang, Wendy R Kam, Yang Liu, Xiaomin Chen, David A Sullivan
PURPOSE: Investigators have discovered that topical antiglaucoma drugs may induce meibomian gland dysfunction. This response may contribute to the dry eye disease commonly found in patients with glaucoma taking such medications. We hypothesize that drug action involves a direct effect on human meibomian gland epithelial cells (HMGECs). To test this hypothesis, we examined the influence of the antiglaucoma drugs, pilocarpine and timolol, on the morphology, survival, proliferation, and differentiation of HMGECs...
June 2017: Cornea
https://www.readbyqxmd.com/read/28458508/meibomian-gland-dysfunction-patients-with-novel-sj%C3%A3-gren-s-syndrome-biomarkers-benefit-significantly-from-a-single-vectored-thermal-pulsation-procedure-a-retrospective-analysis
#8
Alice T Epitropoulos, Krysta Goslin, Raman Bedi, Caroline A Blackie
PURPOSE: To measure the effects from a single vectored thermal pulsation treatment of the meibomian glands on dry eye signs and symptoms in patients who tested positively versus negatively for novel Sjögren's syndrome (SS) biomarkers. METHODS: The retrospective study included the deidentified data of 102 eyes of 59 patients with dry eye and meibomian gland dysfunction (MGD), who were also tested for novel biomarkers for SS and underwent a single 12-minute LipiFlow thermal pulsation procedure...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28448672/correlation-between-the-inflammatory-marker-hla-dr-and-signs-and-symptoms-in-moderate-to-severe-dry-eye-disease
#9
Françoise Brignole-Baudouin, Luisa Riancho, Dahlia Ismail, Maëva Deniaud, Mourad Amrane, Christophe Baudouin
Purpose: To investigate correlations of the inflammatory HLA-DR marker with clinical signs and symptoms commonly used to assess dry eye disease (DED) severity. Methods: Baseline data were collected from three clinical studies conducted on moderate to severe DED patients. Characteristics of DED were analyzed and correlations were performed in 311 patients. Data were analyzed after treatment with 1 mg/mL cyclosporine (CsA) and vehicle. We quantified HLA-DR by flow cytometry in impression cytology specimens...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28442381/ocular-surface-alkali-injury-damages-meibomian-glands-in-mice
#10
Shin Mizoguchi, Hiroki Iwanishi, Masahide Kokado, Takayoshi Sumioka, Geraint J Parfitt, Yilu Xie, Reiko Arita, Rika Shirakawa, Osamu Yamanaka, Yuka Okada, James V Jester, Shizuya Saika
PURPOSE: To examine effects of alkali injury of the ocular surface on meibomian gland pathology in mice. METHODS: Three μL of 1 N NaOH were applied under general anesthesia to the right eye of 10-week-old BALB/c (n = 54) mice to produce a total ocular surface alkali burn. The meibomian gland morphology was examined at days 1, 2, 5, 10, and 20 by stereomicroscopy and non-contact infrared meibography. Mice were then sacrificed and eyelids processed for histology with hematoxylin-eosin and immunohistochemistry for ELOVL4, PPARγ, myeloperoxidase (a neutrophil marker) and F4/80 macrophage antigen, as well as TUNEL staining...
April 22, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28440253/evaluation-of-meibomian-gland-and-tear-film-changes-in-patients-with-pterygium
#11
Fen Ye, Fen Zhou, Yuan Xia, Xiaomin Zhu, Yan Wu, Zhenping Huang
BACKGROUND: Recent studies have demonstrated that pterygium has a close relationship with dry eye disease. This study is to determine abnormalities in meibomian gland and tear function in patients with pterygium and to assess the relationship between the variables. MATERIALS AND METHODS: Forty eyes from forty patients with primary nasal pterygium and forty eyes from forty volunteers without ocular pathologies were enrolled in this study. Ocular surface disease index scores, meibomian gland expression scores, lid margin abnormality scores, meiboscore, tear film breakup time (BUT), Schirmer test (SIT) value, and the lower tear meniscus height (TMH), tear meniscus depth (TMD), and tear meniscus area (TMA) using Fourier domain optical coherence were performed...
March 2017: Indian Journal of Ophthalmology
https://www.readbyqxmd.com/read/28438780/penetration-route-of-the-selective-glucocorticoid-receptor-agonist-sa22465-and-betamethasone-into-rabbit-meibomian-gland-based-on-pharmacokinetics-and-autoradiography
#12
Nagayoshi Asano, Kenji Ueda, Kouichi Kawazu
Meibomian glands are tiny sebaceous glands embedded within specific types of dense connective tissues. This study investigated drug penetration into meibomian glands following a single topical administration in rabbits. We measured time-course concentrations of the selective glucocorticoid receptor agonist (SEGRA) SA22465 and betamethasone in lid margins, palpebral conjunctival epithelium, and meibomian glands following a single instillation using a newly established collection method. We also visualized the distribution of (14)C-SA22465 in eyelid tissue sections using micro-autoradiography...
April 24, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28410360/estimation-of-prevalence-of-meibomian-gland-dysfunction-in-japan
#13
Shiro Amano, Kenji Inoue
PURPOSE: To estimate the prevalence of meibomian gland dysfunction (MGD) in the Japanese population using new diagnostic criteria, including lid margin abnormalities and signs of occlusion of the meibomian gland orifices as essential signs. METHODS: The participants were consecutive patients scheduled for cataract surgery at Inouye Eye Hospital. All participants were aged 50 years or older. The participants completed a symptoms questionnaire and underwent a comprehensive slit-lamp examination...
June 2017: Cornea
https://www.readbyqxmd.com/read/28410282/new-insights-into-the-lipid-layer-of-the-tear-film-and-meibomian-glands
#14
Reiko Arita, Shima Fukuoka, Naoyuki Morishige
Meibomian glands secrete lipids (meibum) that form the surface lipid layer of the tear film and thereby prevent excessive evaporation of tear fluid. Meibomian gland dysfunction is a major cause of evaporative dry eye, which is more prevalent than aqueous-deficient dry eye. Noninvasive meibography with infrared light and an infrared charge-coupled device camera can detect morphological changes of meibomian glands in both upper and lower eyelids, whereas tear interferometry allows qualitative and quantitative evaluations of the lipid layer of the tear film...
April 12, 2017: Eye & Contact Lens
https://www.readbyqxmd.com/read/28384900/efficacy-of-green-tea-extract-for-treatment-of-dry-eye-and-meibomian-gland-dysfunction-a-double-blind-randomized-controlled-clinical-trial-study
#15
Mahmood Nejabat, Salehi Ali Reza, Mehdi Zadmehr, Masoud Yasemi, Zahra Sobhani
INTRODUCTION: With an incidence rate of 9%, dry eye is a common problem of the ocular surface, especially in patients more than 40-year-old. Green tea extract has anti-oxidative, anti-bacterial, anti-androgen, and immunomodulatory properties. AIM: To evaluate the efficacy of green tea extract for treatment of patients with dry eye and Meibomian Gland Dysfunction (MGD). MATERIALS AND METHODS: In a double-blind randomized controlled clinical trial, 60 patients were selected within the age range of 30 to 70 years, and divided into two groups by blocked randomization method...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28368991/ocular-surface-parameters-predicting-patient-satisfaction-after-a-single-vectored-thermal-pulsation-procedure-for-management-of-symptomatic-meibomian-gland-dysfunction
#16
Allister Gibbons, Daniel Waren, Nilufer Yesilirmak, Kendra Davis, Felipe Valenzuela, Juan C Murillo, Victor L Perez
PURPOSE: To evaluate the ocular surface parameters that could predict patient satisfaction after single application of vectored thermal pulsation (VTP). METHODS: This is a retrospective interventional case series; it included consecutive patients who underwent bilateral VTP for management of symptomatic meibomian gland dysfunction (MGD). Patients received a full ocular surface evaluation. The outcome was patient subjective improvement during the first 3-4 months after 3 follow-up visits...
June 2017: Cornea
https://www.readbyqxmd.com/read/28363775/the-human-meibomian-gland-epithelial-cell-line-as-a-model-to-study-meibomian-gland-dysfunction
#17
REVIEW
Ulrike Hampel, Fabian Garreis
The meibomian gland dysfunction (MGD) is the leading cause of dry eye disease (DED) throughout the world. The investigation of MGD lacks suitable in vivo and in vitro models. In 2010 a human meibomian gland epithelial cell line (HMGEC) was established, so far the only available meibomian gland cell line. The characterization of HMGEC is of major importance to clarify its suitability for studying the meibomian gland (patho)physiology in vitro. The current culture protocol and new concepts of HMGEC culture will be compared...
March 28, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/28363586/increase-in-tear-film-lipid-layer-thickness-after-instillation-of-3-diquafosol-ophthalmic-solution-in-healthy-human-eyes
#18
Shima Fukuoka, Reiko Arita
PURPOSE: To evaluate the effect of 3% diquafosol ophthalmic solution on tear film lipid layer thickness (LLT) in normal human eyes by tear interferometry. METHODS: Forty-seven healthy men (mean age of 42.4 years) randomly received one drop of artificial tears in one eye and one drop of 3% diquafosol ophthalmic solution in the other. LLT of each eye was quantified by tear interferometry before and 15, 30, and 60 min after instillation. Ocular symptoms were assessed before and 30 min after instillation...
March 28, 2017: Ocular Surface
https://www.readbyqxmd.com/read/28361356/-pathophysiology-of-atopic-blepharokeratoconjunctivitis
#19
T Lapp, P Maier, T Jakob, T Reinhard
Atopic dermatitis (AD) is a systemic inflammatory disease, which is characterized by pronounced eczema and pruritus. In addition to the involvement of the entire integument, the periocular lid skin and the surface of the eye are frequently involved. Ocular involvement may occur solely without dermatitis of facial or body skin. Pathophysiologically, besides a dysregulated immune response, genetic changes can occur in various dermal structural proteins which will lead to a disturbed skin barrier. Furthermore, there is a regular colonization with bacterial pathogens and an increased susceptibility for viral skin infections...
March 30, 2017: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/28346280/conjunctivochalasis-and-related-factors-in-an-adult-population-of-iran
#20
Hassan Hashemi, Hadith Rastad, Mohammad Hassan Emamian, Akbar Fotouhi
OBJECTIVES: To determine the prevalence of conjunctivochalasis and its determinants in a middle-aged Iranian population. METHODS: This population-based study was conducted in the context of the second phase of Shahroud Eye Cohort Study in 2014. Of 4,737 participants aged 45 to 69 years who participated in the second phase, the data of 4,702 participants were available for this report. A diagnosis of conjunctivochalasis was made based on the physician's judgment on ophthalmic examinations...
March 24, 2017: Eye & Contact Lens
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