title: Imaging of retinal vasculature using adaptive optics SLO/OCT.
abstract: We use our previously developed adaptive optics (AO) scanning laser ophthalmoscope (SLO)/ optical coherence tomography (OCT) instrument to investigate its capability for imaging retinal vasculature. The system records SLO and OCT images simultaneously with a pixel to pixel correspondence which allows a direct comparison between those imaging modalities. Different field of views ranging from 0.8°x0.8° up to 4°x4° are supported by the instrument. In addition a dynamic focus scheme was developed for the AO-SLO/OCT system in order to maintain the high transverse resolution throughout imaging depth. The active axial eye tracking that is implemented in the OCT channel allows time resolved measurements of the retinal vasculature in the en-face imaging plane. Vessel walls and structures that we believe correspond to individual erythrocytes could be visualized with the system.
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria ; Imaging Cluster, Medical University of 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 ; Imaging Cluster, Medical University of Vienna, Austria.
authors.forename: Matthias
authors.initials: M
authors.lastname: Rechenmacher
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria ; Imaging Cluster, Medical University of Vienna, Austria.
authors.forename: Richard
authors.initials: R
authors.lastname: Haindl
authors.affiliation: Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria ; Imaging Cluster, Medical University of 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 ; Imaging Cluster, Medical University of 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 ; Imaging Cluster, Medical University of 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