Imaging of retinal vasculature using adaptive optics SLO/OCT |
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| Authors: | Franz Felberer Matthias Rechenmacher Richard Haindl Bernhard Baumann Christoph K Hitzenberger Michael Pircher |
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| Institution: | 1.Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Waehringerguertel 18-20, 1090 Vienna, Austria;2.Imaging Cluster, Medical University of Vienna, Austria |
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| 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.OCIS codes: (170.3890) Medical optics instrumentation, (110.1080) Active or adaptive optics, (170.4470) Ophthalmology, (330.5310) Vision - photoreceptors, (110.4500) Optical coherence tomography |
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