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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