1. Weihua Gao

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    1. Mentioned In 11 Articles

    2. Directional property of the retinal reflection measured with optical coherence tomography and wavefront sensing (Thesis)

      Directional property of the retinal reflection measured with optical coherence tomography and wavefront sensing (Thesis)
      The last thirty years have experienced tremendous advancement in our understanding of light-tissue interactions in the human retina. Nevertheless, major gaps remain, and our modeling of light return from the back of the eye continues to evolve. The objective of this thesis is to investigate one of these gaps, specifically that related to the directional property (angular dependence) of the retinal reflection and in particular that of cone photoreceptors. Directionality ...
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    3. Imaging retinal nerve fiber bundles at ultrahigh-speed and ultrahigh-resolution using OCT with adaptive optics

      Imaging retinal nerve fiber bundles at ultrahigh-speed and ultrahigh-resolution using OCT with adaptive optics
      Ultrahigh speed line scan detectors based on CMOS technology have been recently demonstrated in ultrahigh resolution spectral-domain optical coherence tomography (UHR-SD-OCT) for retinal imaging. While successful, fundamental tradeoffs exist been image acquisition time, image sampling density, and sensitivity, all of which impact the extent of motion artifacts, visualization of fine spatial detail, and detection of faint reflections. Here we investigate these tradeoffs for imaging retinal nerve fiber bundles (RNFBs) using ...
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    4. Volumetric retinal imaging with ultrahigh-resolution spectral-domain optical coherence tomography and adaptive optics using two broadband light sources

      Volumetric retinal imaging with ultrahigh-resolution spectral-domain optical coherence tomography and adaptive optics using two broadband light sources
      ...ision system - noninvasive assessment Citation Barry Cense, Erik Koperda, Jeffrey M. Brown, Omer P. Kocaoglu, Weihua Gao, Ravi S. Jonnal, and Donald T. Miller, "Volumetric retinal imaging with ultrahigh-resolution spect...
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    5. Measuring retinal contributions to the optical Stiles-Crawford effect with optical coherence tomography

      The directional component of the retinal reflection, i.e., the optical Stiles-Crawford effect (SCE), is well established to result from the waveguiding property of photoreceptors. Considerable uncertainty, however, remains as to which retinal reflections are waveguided and thus contribute. To this ... [Opt. Express 16, 6486-6501 (2008)]
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    6. In vivo functional imaging of humancone photoreceptors

      We evaluate a novel non-invasive optical technique for observing fast physiological processes, in particular phototransduction, in single photoreceptor cells in the living human eye. The method takes advantage of the interference of multiple reflections within the outer segments (OS) of cones. ... [Opt. Express 15, 16141-16160 (2007)]
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  2. About Weihua Gao

    Weihua Gao

    Weihua Gao is with the School of Optometry at Indiana University.  Weihua Gao earned his PhD in Vision Sciences/ Physiological Optics from Indiana University in 2011. In the same year, he joined the KLA-Tencor as a Senior Optical Engineer. Weihua Gao's research interests are in optical coherence tomography, polarization-sensitive imaging, wavefront sensing and adaptive optics