Tracking optical coherence tomography

R. Daniel Ferguson, Daniel X. Hammer, Lelia Adelina Paunescu, Siobahn Beaton, Joel S. Schuman

    Research output: Contribution to journalArticlepeer-review


    An experimental tracking optical coherence tomography (OCT) system has been clinically tested. The prototype instrument uses a secondary sensing beam and steering mirrors to compensate for eye motion with a closed-loop bandwidth of 1 kHz and tracking accuracy, to within less than the OCT beam diameter. The retinal tracker improved image registration accuracy to <1 transverse pixel (<60 /μm). Composite OCT images averaged over multiple scans and visits show a sharp fine structure limited only by transverse pixel size. As the resolution of clinical OCT systems improves, the capability to reproducibly map complex structures in the living eye at high resolution will lead to improved understanding of disease processes and improved sensitivity and specificity of diagnostic procedures.

    Original languageEnglish (US)
    Pages (from-to)2139-2141
    Number of pages3
    JournalOptics Letters
    Issue number18
    StatePublished - Sep 15 2004

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


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