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Related Experiment Videos

Increasing the range of the keratometer.

W Manning, D Miller

    Survey of Ophthalmology
    |May 1, 1978
    PubMed
    Summary

    This study presents a novel technique to extend the measurement range of standard keratometers. This method allows ophthalmologists to accurately assess extreme corneal curvature in patients with conditions like keratoconus.

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    Area of Science:

    • Ophthalmology
    • Optometry
    • Biomedical Engineering

    Background:

    • Standard keratometry devices have limited measurement ranges.
    • Certain corneal conditions, such as keratoconus and corneal plana, present extreme curvatures exceeding these limits.
    • Accurate measurement of corneal curvature is crucial for diagnosis and management.

    Purpose of the Study:

    • To present a technique for extending the measurable range of a standard keratometer.
    • To enable accurate keratometry in patients with abnormally steep or flat corneas.

    Main Methods:

    • A modification or procedural adaptation of standard keratometry is described.
    • The technique involves adjusting the keratometer's parameters or using supplementary methods to accommodate extreme curvatures.

    Main Results:

    • The presented technique successfully extends the keratometer's range.
    • Accurate measurements were obtained for simulated or actual cases of extreme corneal curvature.

    Conclusions:

    • The described technique provides a viable solution for performing keratometry in challenging cases.
    • This method enhances the diagnostic capabilities of ophthalmologists for patients with conditions like keratoconus.

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