Clinical Megahertz-OCT for ophthalmic applications (Conference Presentation)

Michael Niederleithner; Anja Britten; Laurin Ginner; Matthias Salas; Hugang Ren; Muzammil A. Arain; Rick A. Williams; Wolfgang Drexler; Rainer A. Leitgeb; Tilman Schmoll

doi:10.1117/12.2550134

9 March 2020 Clinical Megahertz-OCT for ophthalmic applications (Conference Presentation)

Michael Niederleithner, Anja Britten, Laurin Ginner, Matthias Salas, Hugang Ren, Muzammil A. Arain, Rick A. Williams, Wolfgang Drexler, Rainer A. Leitgeb, Tilman Schmoll

Author Affiliations +

Proceedings Volume 11218, Ophthalmic Technologies XXX; 112180E (2020) https://doi.org/10.1117/12.2550134
Event: SPIE BiOS, 2020, San Francisco, California, United States

Abstract

Tunable laser sources with sweep-rates higher than 1MHz recently became commercially available. Today’s commercial ophthalmic OCT systems use sweep-rates in the 100-200kHz regime. These much faster laser sources can be used to either significantly reduce the imaging time or significantly increase the field of view (FOV). In this study we investigate the clinical value of OCT with MHz-rate swept source lasers. We implemented a versatile ophthalmic OCT system using a Frequency-Domain-Mode-Locked (FDML) laser with a sweep-rate of 1.7MHz, to address a variety of ophthalmic OCT imaging applications, exhibiting large imaging depth for wide field retinal OCT and OCT angiography (OCTA) with a field of view of up to 90 degrees, as well as for anterior segment imaging, and microscopic OCTA of the choriocapillaris with repetition rates of more than 1kHz.

Conference Presentation

Citation Download Citation

Michael Niederleithner, Anja Britten, Laurin Ginner, Matthias Salas, Hugang Ren, Muzammil A. Arain, Rick A. Williams, Wolfgang Drexler, Rainer A. Leitgeb, and Tilman Schmoll "Clinical Megahertz-OCT for ophthalmic applications (Conference Presentation)", Proc. SPIE 11218, Ophthalmic Technologies XXX, 112180E (9 March 2020); https://doi.org/10.1117/12.2550134

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KEYWORDS

Optical coherence tomography

Measurement devices

Retina

Image quality

Image quality standards

Image resolution

Laser sources

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