نتایج جستجو برای: anterior segment optical coherence tomography

تعداد نتایج: 658951  

Journal: :Journal of Clinical Ophthalmology and Research 2014

Journal: :Journal of Cataract and Refractive Surgery 2010

2012
Haitao Li Vishal Jhanji Syril Dorairaj Andrea Liu Dennis SC Lam Christopher K Leung

Anterior segment optical coherence tomography (ASOCT) is an imaging modality that provides both quantitative and qualitative information on the cornea, anterior chamber angle, iris and crystalline lens. ASOCT shows excellent repeatability and reproducibility for the measurement of corneal thickness, anterior chamber angle and anterior chamber depth. With realtime video recording, ASOCT can also...

2017
Anis Mahmoud Riadh Messaoud Fatma Abid Imen Ksiaa Melek Bouzayene Moncef Khairallah

BACKGROUND The purpose of this single case report was to report the use of anterior segment optical coherence tomography for the diagnosis and management of a retained vegetal intraocular foreign body. RESULTS A 23-year-old otherwise healthy male presented with a progressive vision loss in the right eye (RE). He reported a mild ocular trauma with a tree leaf 1 year ago followed by recurrent e...

2013
Nursal Melda Yenerel Raciha Beril Kucumen Ebru Gorgun

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...

2012
Sarwat Salim

The anterior segment optical coherence tomography provides an objective method to assess the anterior segment of the eye, including the anatomy of the anterior chamber angle. This technology allows both qualitative and quantitative analyses of the angle and has shown potential in detecting and managing angle-closure glaucoma. In addition, it has a role in identifying pathology in some forms of ...

Journal: :Optics express 2006
Yoshiaki Yasuno Jun-Ichiro Sugisaka Yusuke Sando Yoshifumi Nakamura Shuichi Makita Masahide Itoh Toyohiko Yatagai

A numerical deconvolution method to cancel lateral defocus in Fourier domain optical coherence tomography (FD-OCT) is presented. This method uses a depth-dependent lateral point spread function and some approximations to design a deconvolution filter for the cancellation of lateral defocus. Improved lateral resolutions are theoretically estimated; consequently, the effect of lateral superresolu...

Journal: :Arquivos brasileiros de oftalmologia 2014
Cristiana Agra Lydianne Agra Jeanine Dantas Tiago Eugênio Faria e Arantes João Lins de Andrade Neto

PURPOSE To analyze the corneal thickness and anterior chamber (AC) angle using anterior segment optical coherence tomography (AS-OCT) in patients with acute anterior uveitis (AAU). METHODS Twenty two patients (24 eyes) were included. All patients underwent complete ophthalmological examination, applanation tonometry and AS-OCT at diagnosis and fifteen days after treatment. RESULTS Average c...

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