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

  • Clinical investigations
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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 wasr s = 0.931;P < 0.001 (r s = 0.935G,P <0.001;r s = 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.

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Authors and Affiliations

  1. Universitäts-Augenklinik Heidelberg, Im Neuenheimer Feld 400, W-6900, Heidelberg, Germany

    Reinhard O. W. Burk, Klaus Rohrschneider & Hans E. Völcker

  2. Department of Ophthalmology, Tufts University School of Medicine, Boston, Massachusetts, USA

    Takenori Takamoto & Bernhard Schwartz

Authors
  1. Reinhard O. W. Burk
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  2. Klaus Rohrschneider
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  3. Takenori Takamoto
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  4. Hans E. Völcker
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  5. Bernhard Schwartz
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Additional information

Presented in part at the Association for Research in Vision and Ophthalmology, Sarasota, Florida, 3 May 1990. Supported in part by a grant from the Deutsche Forschungsgemeinschaft DFG Vo 437/1-1 (ROWB, KR, HEV) and the Alcon Research Institute, Fort Worth, Texas (BS, TT). The authors have no proprietary interest in the development or marketing of the optic disc analysis systems mentioned in the article.

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Burk, R.O.W., Rohrschneider, K., Takamoto, T. et al. Laser scanning tomography and stereophotogrammetry in three-dimensional optic disc analysis. Graefe's Arch Clin Exp Ophthalmol 231, 193–198 (1993). https://doi.org/10.1007/BF00918840

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  • DOI: https://doi.org/10.1007/BF00918840

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