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Robert J. Zawadzki
Researcher at University of California, Davis
Publications - 248
Citations - 8200
Robert J. Zawadzki is an academic researcher from University of California, Davis. The author has contributed to research in topics: Optical coherence tomography & Adaptive optics. The author has an hindex of 46, co-authored 231 publications receiving 7140 citations. Previous affiliations of Robert J. Zawadzki include Vision-Sciences, Inc. & University of California.
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Journal ArticleDOI
Real-time assessment of retinal blood flow with ultrafast acquisition by color Doppler Fourier domain optical coherence tomography.
Rainer A. Leitgeb,Leopold Schmetterer,Wolfgang Drexler,Adolf Friedrich Fercher,Robert J. Zawadzki,Tomasz Bajraszewski +5 more
TL;DR: The interfaced color Doppler Fourier domain optical coherence tomography (CD-FDOCT) with a commercial OCT system to perform in vivo studies of human retinal blood flow in real time and achieves a system sensitivity of 86dB using a beam power of 500microW at the cornea.
Journal ArticleDOI
Adaptive-optics optical coherence tomography for high-resolution and high-speed 3D retinal in vivo imaging
Robert J. Zawadzki,Steven M. Jones,Scot S. Olivier,Mingtao Zhao,Bradley A. Bower,Joseph A. Izatt,Stacey S. Choi,Sophie S. Laut,John S. Werner +8 more
TL;DR: A closed-loop adaptive optics system using a Hartmann-Shack wavefront sensor and a bimorph deformable mirror is combined with Fourier-domain optical coherence tomography to image microscopic blood vessels and the cone photoreceptor mosaic.
Journal ArticleDOI
High-speed volumetric imaging of cone photoreceptors with adaptive optics spectral-domain optical coherence tomography
Yan Zhang,Barry Cense,Jungtae Rha,Ravi S. Jonnal,W. Gao,Robert J. Zawadzki,John S. Werner,Steve Jones,Scot S. Olivier,Donald T. Miller +9 more
TL;DR: The first observations of the three-dimensional morphology of cone photoreceptors in the living human retina are reported, with regular distribution of bright spots observed within C-scans at the inner segment / outer segment (IS/OS) junctions and at the posterior tips of the OS were found to be highly correlated with one another and with the expected cone spacing.
Journal ArticleDOI
Numerical dispersion compensation for Partial Coherence Interferometry and Optical Coherence Tomography.
Adolf Friedrich Fercher,Christoph K. Hitzenberger,Markus Sticker,Robert J. Zawadzki,Boris Karamata,Theo Lasser +5 more
TL;DR: A numerical dispersion compensation technique for Partial Coherence Interferometry (PCI) and Optical Coherence Tomography (OCT) based on numerical correlation of the depth scan signal with a depth variant kernel is presented.
Journal ArticleDOI
Phase-Variance Optical Coherence Tomography: A Technique for Noninvasive Angiography
Daniel M. Schwartz,Jeff Fingler,Dae Yu Kim,Dae Yu Kim,Robert J. Zawadzki,Lawrence S Morse,Susanna Soon Chun Park,Scott E. Fraser,John S. Werner +8 more
TL;DR: In this article, the authors compare images from phase-variance optical coherence tomography (PV-OCT) and fluorescein angiography (FA) for normal individuals and patients with age-related macular degeneration (AMD) and diabetic retinopathy.