نتایج جستجو برای: corneal endothelial cell density

تعداد نتایج: 2136757  

2015
Sang Ouk Choi Hyun Sun Jeon Joon Young Hyon Yun-Jung Oh Won Ryang Wee Tae-young Chung Young Joo Shin Jeong Won Kim Alexander V. Ljubimov

BACKGROUND Wound healing of the endothelium occurs through cell enlargement and migration. However, the peripheral corneal endothelium may act as a cell resource for the recovery of corneal endothelium in endothelial injury. AIM To investigate the recovery process of corneal endothelial cells (CECs) from corneal endothelial injury. METHODS Three patients with unilateral chemical eye injurie...

Journal: :بینا 0
مژگان رضایی کنوی m rezaei kanavi ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranمرکز تحقیقات مهندسی بافت چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران مجید قلعه نویی m ghalenoee central eye bank of iran, tehran, iranبانک چشم جمهوری اسلامی ایران- تهران- ایران طاهره چمنی t chamani central eye bank of iran, tehran, iranبانک چشم جمهوری اسلامی ایران- تهران- ایران محمدعلی جوادی ma javadi ophthalmic research center, shahid beheshti university of medical sciences, tehran, iranمرکز تحقیقات چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران نرگس فضیلی n fazili ocular tissue engineering research center, shahid beheshti university of medical sciences, tehran, iranمرکز تحقیقات مهندسی بافت چشم- دانشگاه علوم پزشکی شهید بهشتی- تهران- ایران

purpose: optisol-gs is still the most popular cold storage medium used in the united states for short term preservation of donated corneas. cebi medium is a new cold storage medium made by the central eye bank of iran for donor cornea storage. this study was conducted to compare the quantitative and qualitative indices of the donated corneas maintained in optisol-gs versus in the cebi medium. m...

2014
Ying-Ting Zhu Fu Li Bo Han Sean Tighe Suzhen Zhang Szu-Yu Chen Xin Liu Scheffer C.G. Tseng

Currently there are limited treatment options for corneal blindness caused by dysfunctional corneal endothelial cells. The primary treatment involves transplantation of healthy donor human corneal endothelial cells, but a global shortage of donor corneas necessitates other options. Conventional tissue approaches for corneal endothelial cells are based on EDTA-trypsin treatment and run the risk ...

2016
Hossein Jamali Sara Jahanian Reza Gharebaghi

PURPOSE To evaluate the effects of prophylactic laser peripheral iridotomy on corneal endothelial cell density and cell morphology in subjects with primary angle closure suspect (PACS) within a one-year follow-up period. METHODS In this quasi-experimental prospective study, from June 2012 to November 2013, thirty-five PACS eyes underwent laser peripheral iridotomy at clinics affiliated to Shi...

Journal: :Progress in retinal and eye research 2007
Stefan Mergler Uwe Pleyer

The corneal endothelium is a monolayer that mediates the flux of solutes and water across the posterior corneal surface. Thereby, it plays an essential role to maintain the transparency of the cornea. Unlike the epithelium, the human endothelium is an amitotic cell layer with a critical cell density and the risk of corneal decompensation. The number of endothelial cells subsequently decreases w...

2015
Laura Gasser Thomas Reinhard Daniel Böhringer

BACKGROUND Measurement of corneal endothelial cell density is important both for clinical diagnosis as well as clinical studies. Since endothelial cell loss is considered irreversible in humans, even small changes in endothelial cell density are relevant. Therefore it is important to know whether different instruments for endothelial cell density measurements give the same results and can thus ...

Journal: :The British journal of ophthalmology 2001
S W Chang I L Tsai F R Hu L L Lin Y F Shih

AIMS To further understand the effect of refractive error on the corneal dimensions and function. METHODS Corneal curvature, corneal thickness, and axial length measurements were performed, as well as specular microscopy and fluorophotometry, on patients with various refractive statuses. 216 subjects, mean age 22.2 (SD 4.2) years, were examined. Patients with previous contact lens wear histor...

2014
Ceyhun Arıcı Osman Sevki Arslan Funda Dikkaya

Purpose. To describe the normative values of corneal endothelial cell density, morphology, and central corneal thickness in healthy Turkish eyes. Methods. Specular microscopy was performed in 252 eyes of 126 healthy volunteers (M : F, 42 : 84). Parameters studied included mean endothelial cell density (MCD), mean cell area (MCA), coefficient of variation (CV) in cell size, percentage of hexagon...

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