Automated volumetric evaluation of stereoscopic disc photography

Juan Xu, Hiroshi Ishikawa, Gadi Wollstein, Richard A. Bilonick, Larry Kagemann, Jamie E. Craig, David A. Mackey, Alex W. Hewitt, Joel S. Schuman

    Research output: Contribution to journalArticlepeer-review


    PURPOSE: To develop a fully automated algorithm (AP) to perform a volumetric measure of the optic disc using conventional stereoscopic optic nerve head (ONH) photographs, and to compare algorithm-produced parameters with manual photogrammetry (MP), scanning laser ophthalmoscope (SLO) and optical coherence tomography (OCT) measurements. METHODS: One hundred twenty-two stereoscopic optic disc photographs (61 subjects) were analyzed. Disc area, rim area, cup area, cup/disc area ratio, vertical cup/disc ratio, rim volume and cup volume were automatically computed by the algorithm. Latent variable measurement error models were used to assess measurement reproducibility for the four techniques. RESULTS: AP had better reproducibility for disc area and cup volume and worse reproducibility for cup/disc area ratio and vertical cup/disc ratio, when the measurements were compared to the MP, SLO and OCT methods. CONCLUSION: AP provides a useful technique for an objective quantitative assessment of 3D ONH structures.

    Original languageEnglish (US)
    Pages (from-to)11347-11359
    Number of pages13
    JournalOptics Express
    Issue number11
    StatePublished - May 24 2010

    ASJC Scopus subject areas

    • Atomic and Molecular Physics, and Optics


    Dive into the research topics of 'Automated volumetric evaluation of stereoscopic disc photography'. Together they form a unique fingerprint.

    Cite this