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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 29, Iss. 18 — Sep. 15, 2004
  • pp: 2139–2141

Tracking optical coherence tomography

R. Daniel Ferguson, Daniel X. Hammer, Lelia Adelina Paunescu, Siobahn Beaton, and Joel S. Schuman  »View Author Affiliations


Optics Letters, Vol. 29, Issue 18, pp. 2139-2141 (2004)
http://dx.doi.org/10.1364/OL.29.002139


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Abstract

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.

© 2004 Optical Society of America

OCIS Codes
(170.1610) Medical optics and biotechnology : Clinical applications
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4470) Medical optics and biotechnology : Ophthalmology
(170.4500) Medical optics and biotechnology : Optical coherence tomography

Citation
R. Daniel Ferguson, Daniel X. Hammer, Lelia Adelina Paunescu, Siobahn Beaton, and Joel S. Schuman, "Tracking optical coherence tomography," Opt. Lett. 29, 2139-2141 (2004)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-29-18-2139

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