Anterior Segment Optical Coherence Tomography in Glaucoma Diagnostics: is Fourier- or Time-domain more useful?
|Zaher Sbeity1,2* and Angelos Efstathopoulos1|
|1Evangelic Hopsital Mülheim, Department of Ophthalmology, University of Düsseldorf, Mülheim an der Ruhr, Germany|
|2New York Medical College, Valhalla, NY, USA|
|Corresponding Author :||Zaher Sbeity
M.D, F.E.B.O Assistant Professor and Chief, Glaucoma Service
Department of Ophthalmology, Evangelic Hospital of Mülheim
Wertgase 30, 45468, Mülheim an der Ruhr, Germany
E-mail: [email protected]
|Received August 13, 2011; Accepted August 16, 2011; Published August 16, 2011|
|Citation: Sbeity Z, Efstathopoulos A (2011) Anterior Segment Optical Coherence Tomography in Glaucoma Diagnostics: is Fourier- or Time-domain more useful? J Clinic Experiment Ophthalmol 2:103e. doi:10.4172/2155-9570.1000103e|
|Copyright: © 2011 Sbeity Z, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.|
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Several new methods based on evolving technologies were introduced in the last decades to enhance and facilitate anterior segment diagnostics in glaucoma. Nowadays, in addition to conventional slit lamp biomicroscopy and gonioscopy, ultrasound biomicroscopy (UBM) and recently anterior segment optical coherence tomography (AS-OCT) are considered to be valuable and indispensable tools especially for patients with primary and secondary angle closure glaucomas. In the early 1990s the AS-OCT was introduced for cornea and glaucoma diagnosis . In contrast to UBM, AS-OCT is a noncontact, high resolution imaging technique which is fast and optimal for noncompliant patients or even children  and has been used to image a variety of anatomic ocular structures in glaucoma patients such as filtering bleb, anterior chamber angle, episcleral and intracameral shunts, posterior chamber and iris. An optimal AS-OCT is not yet available, since each module has its own advantages and limitations, making it increasingly difficult to choose among them.