Ultra highspeed in-vivo Fourier domain full-field OCT of the human retina

Tim Bonin; Martin Hagen-Eggert; Gesa Franke; Peter Koch; Gereon Hüttmann

doi:10.1117/12.874970

15 February 2011 Ultra highspeed in-vivo Fourier domain full-field OCT of the human retina

Tim Bonin, Martin Hagen-Eggert, Gesa Franke, Peter Koch, Gereon Hüttmann

Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 788906 (2011) https://doi.org/10.1117/12.874970
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

In-vivo full field (FF) optical coherence tomography (OCT) images of human retina with up to 6.8 million A-lines/s are presented by using a rapidly tunable laser source in combination with an ultra-high speed CMOS camera. It is shown that Fourier domain (FD) full field OCT could provide a way to overcome limitations in imaging speed which are posed by the maximal possible exposure (MPE) of the retina. With a 100~Hz sweep rate FF-OCT was fast enough to acquire OCT images without motion artifacts, but with rather low sensitivity of 77 dB limited by an undesired incoherent background. Nevertheless, FF-OCT may become an attractive alternative for ultrafast retinal imaging boosting image speed by a lack of moving parts and the use of considerably higher irradiation power, if it is possible to to increase the sensitivity by reducing incoherent straylight.

Citation Download Citation

Tim Bonin, Martin Hagen-Eggert, Gesa Franke, Peter Koch, and Gereon Hüttmann "Ultra highspeed in-vivo Fourier domain full-field OCT of the human retina", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 788906 (15 February 2011); https://doi.org/10.1117/12.874970

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