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Laser scanning tomography and stereophotogrammetry in three-dimensional optic disc analysis

  • Reinhard O. W. Burk
  • Klaus Rohrschneider
  • Takenori Takamoto
  • Hans E. Völcker
  • Bernhard Schwartz
Clinical investigations

Abstract

Laser scanning tomography (LST) and computed stereophotogrammetry (CSP) are sophisticated diagnostic tools for the three-dimensional analysis of optic nerve head topography. The two methods are based on different physical principles. To compare the information about the shape of the cup of an optic nerve head obtained by LST and CSP, we evaluated the volume profile (VP; i.e., the cross-sectional area of the cup from top to bottom) in 36 discs of 36 patients (20 control group discs C, 16 glaucoma discs G). The Spearman correlation coefficient between the photogrammetric and the laser scanning VP-slope measurements wasrs = 0.931;P < 0.001 (rs = 0.935G,P <0.001;rs = 0.910 C,P < 0.001). The results suggest that confocal laser scanning provides readings of the shape of the optic disc cup that are similar to the measurements of computed stereophotogrammetry.

Keywords

Glaucoma Diagnostic Tool Laser Scanning Spearman Correlation Confocal Laser 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1993

Authors and Affiliations

  • Reinhard O. W. Burk
    • 1
  • Klaus Rohrschneider
    • 1
  • Takenori Takamoto
    • 2
  • Hans E. Völcker
    • 1
  • Bernhard Schwartz
    • 2
  1. 1.Universitäts-Augenklinik HeidelbergHeidelbergGermany
  2. 2.Department of OphthalmologyTufts University School of MedicineBostonUSA

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