Jove
Visualize
Contact Us

Related Experiment Videos

A new A-scan ultrasonoscope.

N R Bronson

    Annals of Ophthalmology
    |May 1, 1984
    PubMed
    Summary

    A novel A-mode biometry system features a soft transducer to prevent corneal indentation and improve axial length measurement accuracy. Its microprocessor ensures correct axial alignment, reducing user error for reliable eye measurements.

    Related Concept Videos

    You might also read

    Related Articles

    Articles linked to this work by shared authors, journal, and citation graph.

    Sort by
    Same author

    Capsular forceps for extraocular extraction: a new use for an old instrument (newly designed).

    Ophthalmic surgery·1985
    Same author

    Ultrasonography for patients with uveitis.

    Transactions of the ophthalmological societies of the United Kingdom·1976
    Same author

    Real-time color B-scan ultrasonography.

    Journal of clinical ultrasound : JCU·1975
    Same author

    Contact B-scan ultrasonography: clinicopathological correlations.

    Annals of ophthalmology·1975
    Same author

    A simple B-scan ultrasonoscope.

    Bibliotheca ophthalmologica : supplementa ad ophthalmologica·1975
    Same author

    Ophthalmic contact B-scan ultrasonography. A practical clinical tool.

    Archives of ophthalmology (Chicago, Ill. : 1960)·1974
    JoVE
    x logofacebook logolinkedin logoyoutube logo
    ABOUT JoVE
    OverviewLeadershipBlogJoVE Help Center
    AUTHORS
    Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
    LIBRARIANS
    TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
    RESEARCH
    JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
    EDUCATION
    JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
    Terms & Conditions of Use
    Privacy Policy
    Policies

    Area of Science:

    • Ophthalmology
    • Biomedical Engineering
    • Medical Devices

    Background:

    • Accurate axial length measurement is crucial for refractive error correction.
    • Traditional A-mode biometry systems risk corneal indentation, leading to measurement inaccuracies.
    • User skill variability can impact the reliability of existing A-scan devices.

    Purpose of the Study:

    • To introduce a new A-mode biometry system designed for enhanced accuracy in axial length measurements.
    • To reduce the incidence of corneal indentation during ocular biometry.
    • To minimize user-dependent errors in obtaining axial alignment for eye measurements.

    Main Methods:

    • Development of an A-mode biometry system utilizing a soft-membrane transducer.
    • Integration of a microprocessor for automated echo pattern evaluation and axial alignment confirmation.
    • Testing the system's usability and accuracy with both physicians and technicians.

    Main Results:

    • The soft-membrane transducer significantly reduces the risk of corneal indentation.
    • The microprocessor-based system effectively identifies and confirms axial alignment.
    • The new A-scan system demonstrates minimal user skill requirement and consistent performance.

    Conclusions:

    • The developed A-mode biometry system offers a more accurate and reliable method for axial length measurement.
    • The soft transducer and automated alignment verification address key limitations of previous systems.
    • This technology has the potential to improve diagnostic accuracy and streamline ophthalmic procedures.

    Related Experiment Videos