title: Adaptive optics SLO/OCT for 3D imaging of human photoreceptors in vivo.
abstract: We present a new instrument that is capable of imaging human photoreceptors in three dimensions. To achieve high lateral resolution, the system incorporates an adaptive optics system. The high axial resolution is achieved through the implementation of optical coherence tomography (OCT). The instrument records simultaneously both, scanning laser ophthalmoscope (SLO) and OCT en-face images, with a pixel to pixel correspondence. The information provided by the SLO is used to correct for transverse eye motion in post-processing. In order to correct for axial eye motion, the instrument is equipped with a high speed axial eye tracker. In vivo images of foveal cones as well as images recorded at an eccentricity from the fovea showing cones and rods are presented.
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria.
authors.forename: Franz
authors.initials: F
authors.lastname: Felberer
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria ; Department of Ophthalmology and Optometry, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna Austria.
authors.forename: Julia-Sophie
authors.initials: JS
authors.lastname: Kroisamer
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria.
authors.forename: Bernhard
authors.initials: B
authors.lastname: Baumann
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria.
authors.forename: Stefan
authors.initials: S
authors.lastname: Zotter
authors.affiliation: Department of Ophthalmology and Optometry, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna Austria.
authors.forename: Ursula
authors.initials: U
authors.lastname: Schmidt-Erfurth
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria.
authors.forename: Christoph K
authors.initials: CK
authors.lastname: Hitzenberger
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria.
authors.forename: Michael
authors.initials: M
authors.lastname: Pircher
keywords: (110.1080) Active or adaptive optics; (110.4500) Optical coherence tomography; (170.3890) Medical optics instrumentation; (170.4470) Ophthalmology; (330.5310) Vision - photoreceptors