نتایج جستجو برای: anterior segment optical coherence tomography

تعداد نتایج: 658951  

Journal: :Case reports in ophthalmology 2015
Ahmad M Mansour Randa S Haddad Haytham I Salti Zuhair Habbal

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 ...

Journal: :Archives of ophthalmology 2011
Ren-Yi Wu Monisha E Nongpiur Ming-Guang He Lisandro M Sakata David S Friedman Yiong-Huak Chan Raghavan Lavanya Tien-Yin Wong Tin Aung

OBJECTIVES To describe the measurement of anterior chamber area and anterior chamber volume by anterior-segment optical coherence tomography and to investigate the association of these parameters with the presence of narrow angles. METHODS This was a cross-sectional study of subjects aged at least 50 years without ophthalmic symptoms recruited from a community clinic. All participants underwe...

Journal: :Expert review of ophthalmology 2010
Roxana Ursea Ronald H Silverman

This article summarizes the physics, technology and clinical application of ultrasound biomicroscopy (UBM) and optical coherence tomography (OCT) for assessment of the anterior segment in glaucoma. UBM systems use frequencies ranging from approximately 35 to 80 MHz, as compared with typical 10-MHz systems used for general-purpose ophthalmic imaging. OCT systems use low-coherence, near-infrared ...

Journal: :Photonics letters of Poland 2011
Ireneusz Grulkowski Jonathan J Liu Bernhard Baumann Ben Potsaid Chen Lu James G Fujimoto

We demonstrate an application of high-speed swept source optical coherence tomography for vessel visualization in the anterior segment of the human eye. The human corneo-scleral junction and sclera was imaged in vivo. Imaging was performed using a swept source OCT system operating at the 1050nm wavelength range and 100kHz A-scan rate. High imaging speed enables the generation of 3D depth-resolv...

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