Abstract
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 [1]. In contrast to UBM, AS-OCT is a noncontact, high resolution imaging technique which is fast and optimal for noncompliant patients or even children [2] 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.
Highlights
Several new methods based on evolving technologies were introduced in the last decades to enhance and facilitate anterior segment diagnostics in glaucoma
A variety of commercial FD-OCTs are available (FD -OCT-1000 Topcon, Tokyo, Japan, Cirrus Carl Zeiss, Meditec, Dublin, CA, USA, RTVue-100, Optoview, Inc., Fremont, CA, USA), and the Spectralis OCT Heidelberg Engineering, Dossenheim, Germany). Most of these FD-OCTs have nowadays an anterior segment module that is majorly used for cornea and refractive surgery and glaucoma diagnostics, providing fast imaging with high resolution of the entire cornea including the anterior chamber angle, the iris, and the crystalline lens [5]
In our experience and despite high resolution technology, FD-OCT imaging of anterior chamber angle is still suboptimal and this is due to restricted ability to image the iris root and ciliary band
Summary
Anterior Segment Optical Coherence Tomography in Glaucoma Diagnostics: is Fourier- or Time-domain more useful? Several new methods based on evolving technologies were introduced in the last decades to enhance and facilitate anterior segment diagnostics in glaucoma. 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.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Clinical & Experimental Ophthalmology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
