نتایج جستجو برای: anterior corneal elevation
تعداد نتایج: 217091 فیلتر نتایج به سال:
PURPOSE To describe the corneal and anterior segment determinants of posterior corneal arc length (PCAL) and posterior corneal curvature (PCC). METHODS Cross-sectional, population-based study of 1069 subjects (1069 eyes) aged 40-80 years, from three major Asian ethnic groups. All underwent anterior segment optical coherence tomography imaging and analysis with Zhongshan Angle Assessment Progr...
Background & Aim: Several methods have been reported for refixation of dislocated intraocular lenses (IOLs). However, these methods are associated with some disadvantages including vitreous prolaps, vitreous traction, ocular collapse, intraocular hemorrhage, high astigmatism, and the need for complex intraocular maneuvers. The aim of this study was to evaluate the results of transscleral fi...
corneal transplantation is the most common and successful form of solid organ transplantation with a 2-year survival rate of over 90% in low risk cases. this high success rate may be due to the immune privileged status of the cornea, acaid (anterior chamber associated immune deviation) induction phenomena and secretion of inhibitory molecules by corneal cells such as il1-ra, il-1a and fas ligan...
We present 2 cases of anterior chamber ointment with evidence of progressive endothelial cell loss. In both cases, an anterior segment optical coherence tomography (OCT) was similar to an OCT of a tobramycin-dexamethasone ointment placed on a pen tip. An anterior segment OCT also demonstrated the direct contact of the globule with the corneal endothelium. A gas chromatography/mass spectrometry ...
هدف: بررسی همبستگی بین شاخصهای اندازه‌گیری شده توسط پنتاکم با Elevation Difference قرنیه در بیماران با کراتوکونوس خفیف و متوسط روش پژوهش: صد و پانزده چشم مبتلا به کراتوکونوس در مراحل مختلف بالینی مورد بررسی قرار گرفتند. Elevation difference سطح قدامی و خلفی قرنیه، از نقشه difference نمودار Belin Ambrosio enhance سیستم Scheimflug به دست آمد. شاخصهای K max, Thinnest point, Asphericity, Astigmat...
PURPOSE To evaluate the agreement between total corneal astigmatism calculated by vector summation of anterior and posterior corneal astigmatism (TCAVec) and total corneal astigmatism measured by ray tracing (TCARay). METHODS This study enrolled a total of 204 right eyes of 204 normal subjects. The eyes were measured using a Galilei double Scheimpflug analyzer. The measured parameters include...
PURPOSE To evaluate the utility of anterior segment optical coherence tomography (AS-OCT) assessment in the pre- and postsurgical management of full-thickness corneal grafts. METHODS Seventy eyes of 58 patients who had penetrating keratoplasty were included in the study. High resolution AS-OCT scans of the cornea and the anterior segment were performed before and after transplantation in 17 e...
purpose: to determine the indications for and surgical techniques of corneal transplantation at labbafinejad medical center (lmc) from 2004 to 2007. methods: in this descriptive study, records of 756 patients who had undergone corneal transplantation from october 2004 to october 2007 were reviewed. results: overall, 504 male (64.9%) and 272 female (35.1%) subjects with mean age of 41.29±21.25 (...
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