Journal
OPTICS EXPRESS
Volume 18, Issue 13, Pages 13935-13944Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.18.013935
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Funding
- Austrian Science Fund [P19624-B02]
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We present a further improvement of our SLO/OCT imaging system which enables to practically eliminate all eye motion artifacts with a correction accuracy approaching sub-cellular dimensions. Axial eye tracking is achieved by using a hardware based, high speed tracking system that consists of a rapid scanning optical delay line in the reference arm of the interferometer. A software based algorithm is employed to correct for transverse eye motion in a post-processing step. The instrument operates at a frame rate of 40 en-face fps with a field of view of similar to 1 degrees x1 degrees. Dynamic focusing enables the recording of 3D volumes of the human retina with cellular resolution throughout the entire imaging depth. Several volumes are stitched together to increase the total field of view. Different features of the three dimensional structure of cone photoreceptors are investigated in detail and at different eccentricities from the fovea. (C) 2010 Optical Society of America
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