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Changes in optic disc in ocular hypertension and glaucoma.

B Schwartz

    Japanese Journal of Ophthalmology
    |January 1, 1986
    PubMed
    Summary

    New imaging techniques offer more accurate evaluation of optic disc changes in glaucoma and ocular hypertension. These methods improve diagnostic capabilities for blood supply, cupping, and pallor, enhancing patient management.

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    Area of Science:

    • Ophthalmology
    • Medical Imaging
    • Glaucoma Research

    Background:

    • Ophthalmologists traditionally rely on subjective methods for optic disc evaluation in glaucoma and ocular hypertension.
    • Accurate assessment of optic disc abnormalities and changes is crucial for effective patient management.

    Purpose of the Study:

    • To introduce and evaluate novel, objective techniques for assessing optic disc blood supply, cupping, and pallor.
    • To enhance diagnostic capabilities in ocular hypertension and glaucoma through quantitative measurements.

    Main Methods:

    • Fluorescein angiography was used to evaluate the optic disc's blood supply.
    • Photogrammetry of stereophotographs enabled 3D measurement of optic disc cupping (volume, depth, slopes, area).
    • Computerized image analysis quantified optic disc pallor (percent area).

    Main Results:

    • Fluorescein defects were common in open-angle glaucoma and ocular hypertension, appearing more frequently and extensively than in normal discs.
    • Photogrammetry revealed distinct differences in optic cup shape (volume profile) between normal, ocular hypertensive, and glaucomatous cups.
    • Computerized image analysis provided objective pallor measurements.

    Conclusions:

    • These advanced techniques allow for accurate, objective evaluation and measurement of optic disc changes over time.
    • The developed methods significantly increase diagnostic capability and improve patient management strategies for glaucoma and ocular hypertension.

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