نتایج جستجو برای: tear fault

تعداد نتایج: 74777  

2017
Adrienne Csutak Zita Steiber József Tőzsér Attila Jakab András Berta David M Silver

PURPOSE Plasminogen activator activity (PAA) in tears of pregnant women was investigated at various gestation times to assess the availability of plasminogen activator for aiding potential corneal wound healing processes during pregnancy. METHODS PAA was measured by a spectrophotometric method. The analysis used 91 tear samples from pregnant and non-pregnant women, supplemented with 10 additi...

Journal: :veterinary research forum 2012
david williams sheldon middleton hamidreza fattahian roozbeh moridpour

the aim of this study was to evaluate the efficacy of a hyaluronic acid containing eye drop in ameliorating ocular surface pathology and discomfort in canine keratoconjunctivitis sicca (kcs). twenty five dogs with kcs treated with a topical carbomer (ca)-based tear replacement gel were moved to treatment with a hyaluronic acid (ha)-containing tear replacement eye drop. dogs were subject to a fu...

Journal: :journal of research in medical sciences 0
mohammad ali javadi mahsan assadi bahram einollahi hossein mohammad rabei mehrdad afarid majid assadi

background: ramadan fasting may alter a variety of physiological parameters which by themselves influence ocular system. here, we review the effects of ramadan fasting on the health and function of the eye. materials and methods: literature records in  pubmed/medline, web of science, embase, google scholar, and iran medex databases as well as proceedings of related meetings  from january 1986 t...

Journal: :Investigative ophthalmology & visual science 1999
A A Afonso L Sobrin D C Monroy M Selzer B Lokeshwar S C Pflugfelder

PURPOSE To correlate tear fluorescein clearance with interleukin-1alpha (IL-1alpha) concentration and gelatinase B (matrix metalloproteinase [MMP]-9) activity in the tear fluid of patients with ocular rosacea and normal control subjects. METHODS Gelatinase activity was evaluated by gelatin zymography in tear fluid obtained from 13 patients with ocular rosacea (including 1 patient with recurre...

2014
Maya Salomon-Ben Zeev Darby Douglas Miller Robert Latkany

Dry eye is one of the most commonly encountered problems in ophthalmology. Signs can include punctate epithelial erosions, hyperemia, low tear lakes, rapid tear break-up time, and meibomian gland disease. Current methods of diagnosis include a slit-lamp examination with and without different stains, including fluorescein, rose bengal, and lissamine green. Other methods are the Schirmer test, te...

Journal: :Investigative ophthalmology & visual science 1983
M A Lemp H H Weiler

The mechanisms of tear flow, blinking, and tear drainage were studied employing high speed slit-lamp cinematography using a polystyrene microsphere suspension as a tracer of tear movement. It was demonstrated that: (1) Tears are drawn into the canaliculi during the relaxation phase of blinking. (2) Both superior and inferior puncta function as normal tear drainage routes. (3) The superior punct...

2013
Jingjing You Chris Hodge Li Wen John W. McAvoy Michele C. Madigan Gerard Sutton

PURPOSE To measure secreted frizzled-related protein 1 (SFRP1) levels in human tears and to investigate tear SFRP1 as a potential biomarker for keratoconus (KC). METHODS Tears were collected from control (n = 33) and KC patients (n = 33) using micropipette tubes. Total tear protein was measured using a FluoroProfile Protein Quantification kit. An in-house enzyme-linked immunosorbent assay (EL...

Journal: :Investigative ophthalmology & visual science 2009
Meixiao Shen Jianhua Li Jianhua Wang Huixiang Ma Chunyan Cai Aizhu Tao Yimin Yuan Fan Lu

PURPOSE To measure the upper and lower tear menisci in patients with aqueous tear deficiency (ATD) dry eye by real-time optical coherence tomography (OCT) and to determine the most effective meniscus variables for the diagnosis of dry eye. METHODS Eyes of 48 pre-screened ATD patients were compared with those of 47 healthy subjects. Upper and lower tear menisci were imaged simultaneously by re...

Journal: :The Malaysian journal of medical sciences : MJMS 2011
Say Kiang Foo Sharanjeet Kaur Faudziah Abd Manan Aloysius Joseph Low

BACKGROUND IntraLASIK is a LASIK surgery that involved IntraLase femtosecond laser for the corneal flap creating. The objective of this research was to investigate and compare the changes in tear status at 1 and 3 months after undergoing conventional IntraLASIK with Bausch & Lomb PlanoScan (PS) algorithm, Bausch & Lomb Zyoptix Tissue Saving (ZTS) algorithm, and wavefront-guided (WG) IntraLASIK ...

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