1. Articles from David Barton

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    1. Characterizing the point spread function of retinal OCT devices with a model eye-based phantom

      Characterizing the point spread function of retinal OCT devices with a model eye-based phantom

      We have designed, fabricated, and tested a nanoparticle-embedded phantom (NEP) incorporated into a model eye in order to characterize the point spread function (PSF) of retinal optical coherence tomography (OCT) devices in three dimensions under realistic imaging conditions. The NEP comprises a sparse distribution of highly backscattering silica-gold nanoshells embedded in a transparent UV-curing epoxy. The commercially-available model eye replicates the key optical structures and focusing power of the human eye. We imaged the model eye-NEP combination with a research-grade spectral domain OCT system designed for in vivo retinal imaging and quantified the lateral and axial PSF dimensions across the ...

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  2. Topics in the News

    1. (1 articles) FDA
    2. (1 articles) University of Maryland
    3. (1 articles) Rice University
    4. (1 articles) Anant Agrawal
    5. (1 articles) Yu Chen
    6. (1 articles) Chia-Pin Liang
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