0
Special Section on Optical Coherence Tomography in Ophthalmology

Three-dimensional optical coherence tomography at 1050nm versus 800nm in retinal pathologies: enhanced performance and choroidal penetration in cataract patients

[+] Author Affiliations
Boris Považay, Boris Hermann, Angelika Unterhuber, Bernd Hofer

Cardiff University, School of Optometry and Vision Sciences, Biomedical Imaging Group, Cardiff, Wales, CF24 4LU, United Kingdom and Medical University of Vienna, Center for Biomedical Engineering and Physics, Waehringerstrasse 13, Vienna, A-1090, Vienna, Austria

Harald Sattmann

Medical University of Vienna, Center for Biomedical Engineering and Physics, Waehringerstrasse 13, Vienna, A-1090, Vienna, Austria

Florian Zeiler

Rudolf Foundation Clinic Vienna, Department of Ophthalmology, Ludwig Boltzmann Institute, Juchgasse 25, Vienna, A-1030, Vienna, Austria

James E. Morgan

Cardiff University, School of Optometry and Vision Science 1, Biomedical Imaging Group, Cardiff, Wales, CF24 4LU, United Kingdom

Christiane Falkner-Radler, Carl Glittenberg, Susanne Blinder

Rudolf Foundation Clinic Vienna, Department of Ophthalmology, Ludwig Boltzmann Institute, Juchgasse 25, Vienna, A-1030, Vienna, Austria

Wolfgang Drexler

Cardiff University, School of Optometry and Vision Science 1, Biomedical Imaging Group, Cardiff, Wales, CF24 4LU, United Kingdom and Medical University of Vienna, Center for Biomedical Engineering and Physics, Waehringerstrasse 13, Vienna, A-1090, Vienna, Austria

J. Biomed. Opt. 12(4), 041211 (September 11, 2007). doi:10.1117/1.2773728
History: Received November 14, 2006; Revised February 18, 2007; Accepted February 27, 2007; Published September 11, 2007
Text Size: A A A

Frequency domain optical coherence tomography (FD-OCT), based on an all-reflective high-speed InGaAs spectrometer, operating in the 1050nm wavelength region for retinal diagnostics, enables high-speed, volumetric imaging of retinal pathologies with greater penetration into choroidal tissue is compared to conventional 800nm three-dimensional (3-D) ophthalmic FD-OCT systems. Furthermore, the lower scattering at this wavelength significantly improves imaging performance in cataract patients, thereby widening the clinical applicability of ophthalmic OCT. The clinical performance of two spectrometer-based ophthalmic 3-D OCT systems compared in respect to their clinical performance, one operating at 800nm with 150nm bandwidth (3μm effective axial resolution) and the other at 1050nm with 70nm bandwidth (7μm effective axial resolution). Results achieved with 3-D OCT at 1050nm reveal, for the first time, decisive improvements in image quality for patients with retinal pathologies and clinically significant cataract.

Figures in this Article
© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Boris Považay ; Boris Hermann ; Angelika Unterhuber ; Bernd Hofer ; Harald Sattmann, et al.
"Three-dimensional optical coherence tomography at 1050nm versus 800nm in retinal pathologies: enhanced performance and choroidal penetration in cataract patients", J. Biomed. Opt. 12(4), 041211 (September 11, 2007). ; http://dx.doi.org/10.1117/1.2773728


Access This Article
Sign In to Access Full Content
Please Wait... Processing your request... Please Wait.
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
 
Your Session has timed out. Please sign back in to continue.
Sign In to Access Full Content

Tables

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

Advertisement


Buy this article ($18 for members, $25 for non-members).
Sign In