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13 March 2019 Imaging the human retina using 1060 nm akinetic swept source optical coherence tomography angiography with hardware and digital adaptive optics (Conference Presentation)
Matthias Salas, Laurin Ginner, Marco Augustin, Sylvia Desissaire, Antonia Lichtenegger, Michael Niederleithner, Lorenz Wassermann, Ursula Schmidt-Erfurth, Tilman Schmoll, Wolfgang Drexler, Michael Pircher, Rainer Leitgeb
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Proceedings Volume 10858, Ophthalmic Technologies XXIX; 108580R (2019) https://doi.org/10.1117/12.2508388
Event: SPIE BiOS, 2019, San Francisco, California, United States
Abstract
We exploit the intrinsic phase stability of akinetic swept source optical coherence tomography to demonstrate digital defocus correction in-vivo at a center wavelength of 1060nm. The high speed of 500kHz enables digital adaptive optics (AO) correction across a field of view of 1.8x1.5deg, currently limited by the employed galvo scanners. The source operates in a previously presented dual resolution mode OCT system (wide field >40deg, AO >3deg) with hardware based adaptive optics. The latter allows to efficiently combine hardware and digital AO, and to further optimize the AO imaging results. We demonstrate the digitally assisted AO performance for both structural imaging as well as for OCT angiography imaging across the full retina down to the choriocapillaris.
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Matthias Salas, Laurin Ginner, Marco Augustin, Sylvia Desissaire, Antonia Lichtenegger, Michael Niederleithner, Lorenz Wassermann, Ursula Schmidt-Erfurth, Tilman Schmoll, Wolfgang Drexler, Michael Pircher, and Rainer Leitgeb "Imaging the human retina using 1060 nm akinetic swept source optical coherence tomography angiography with hardware and digital adaptive optics (Conference Presentation)", Proc. SPIE 10858, Ophthalmic Technologies XXIX, 108580R (13 March 2019); https://doi.org/10.1117/12.2508388
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KEYWORDS
Adaptive optics
Optical coherence tomography
Angiography
Optical signal processing
Retina
Retinal scanning
In vivo imaging
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