Active Eye Tracking for Excimer Laser Refractive Surgery

  • Kingman Yee

Abstract

The eye tracker is an important component of today’s laser vision correction (LVC) systems. The accuracy demanded of these eye-tracking systems is very high, especially in wavefront-driven customized treatments. Very specific eye motions need to be tracked during LVC to ensure the most effective treatment. The rationale behind the design of the VISX ActiveTrak eye tracker was based on these movements.

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References

  1. 1.
    W. Becker, A.F. Fuchs: Further Properties of the Human Saccadic System: Eye movements and Correction Saccades With and Without Visual Fixation Points, Vision Res, Vol. 9, pp. 1247–1258 (1969)PubMedCrossRefGoogle Scholar
  2. 2.
    R.M. Steinman, G.M. Haddad, A.A. Skavenski, D. Wyman: Miniature Eye Movement, Science, Vol. 181, pp. 810–819 (1973)PubMedCrossRefGoogle Scholar
  3. 3.
    D. Ott, S.H. Seidman, R.J. Leigh: The stability of Human Eye Orientation during Visual Fixation, Neuroscience Letters, Vol. 142, pp. 183–186 (1992)PubMedCrossRefGoogle Scholar
  4. 4.
    D. Ditchburn: Eye-movements and visual perception, Oxford, Clarendon Press, 1973Google Scholar
  5. 5.
    R. Monty and J. Senders: Eye Movements and Psychological Processes, Hills-dale, N.J.: Lawrence Erlbaum Associates; New York: distributed by Halsted Press, 1976Google Scholar
  6. 6.
    A.T. Bahill, L. Stark: The trajectories of saccadic eye movements, Scientific American, 1979, Vol. 240, pp. 108–117PubMedCrossRefGoogle Scholar
  7. 7.
    M. Stetter, R.A. Sendtner, G.T. Timberlake: A Novel Method for Measuring Saccade Profiles Using the Scanning Laser Opthhalmoscope, Vision Res., Vol. 36, No. 13, pp. 1987–1994 (1996)PubMedCrossRefGoogle Scholar
  8. 8.
    R.M. Steinman, W.B. Cushman, A.J. Martins: The precision of Gaze, Human Neurobiology, Vol. 1 pp. 97–109 (1982)PubMedGoogle Scholar
  9. 9.
    L. Ferman, H. Colloewijn, T.C. Jansen, A.V. Van Den Berg: Human Gaze stability in the horizontal, Vertical, and Torsional direction during Voluntary Head Movements, Evaluated with a Three Dimensional Scierai Induction Coil Technique, Vision Res., Vol. 27, No. 5, pp. 811–828 (1987)PubMedCrossRefGoogle Scholar
  10. 10.
    M.T. Ukwade, H.E. Bedell: Stability of oculomotor fixation as a function of target contrast and blur, Optom. Vis. Sci., 70(2): 123–126 (1993)PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Kingman Yee
    • 1
  1. 1.VISX IncorporatedSanta ClaraUSA

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