Jove
Visualize
Contact Us
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

Related Experiment Videos

Determining intraocular lens power within the eye.

J T Holladay, S A Long, J W Lewis

    Journal - American Intra-Ocular Implant Society
    |July 1, 1985
    PubMed
    Summary

    This study introduces a new method for calculating intraocular lens (IOL) power using slitlamp measurements. The technique offers high accuracy, with an average error of only 0.17 diopters for determining IOL power.

    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

    Current status of infectious diseases among migrants and non-citizens in Malaysia.

    Tropical biomedicine·2023
    Same author

    Helminth parasites of the wood mouse <i>Apodemus sylvaticus</i> in Southern England: levels of infection, species richness and interactions between species.

    Journal of helminthology·2023
    Same author

    A century of the <i>Journal of Helminthology</i>.

    Journal of helminthology·2023
    Same author

    Public health status of Myanmar refugees in South East Asia: A Malaysian case study.

    Tropical biomedicine·2022
    Same author

    Spatial interactions between two nematode species along the intestine of the wood mouse <i>Apodemus sylvaticus</i> from woodland and grassland sites in southern England.

    Journal of helminthology·2021
    Same author

    Post-era mass drug administration: an update on intestinal parasitic infections in urban poor communities in Peninsular Malaysia.

    Tropical biomedicine·2021

    Area of Science:

    • Ophthalmology
    • Biomedical Optics
    • Optical Engineering

    Background:

    • Accurate intraocular lens (IOL) power calculation is crucial for achieving optimal visual outcomes after cataract surgery.
    • Existing methods may involve complex calculations or invasive procedures.

    Purpose of the Study:

    • To present a novel, non-invasive method for determining the power of an implanted intraocular lens (IOL).
    • To simplify the calculation of IOL power using readily available slitlamp measurements.

    Main Methods:

    • Measurement of the corneal reflected image (Purkinje-Sanson I) and anterior IOL reflected image (Purkinje-Sanson III) using a slitlamp.
    • Inclusion of horizontal K-reading and anterior chamber depth as key parameters.
    • Utilizing provided tables to bypass complex mathematical computations for IOL power determination.

    Related Experiment Videos

    Main Results:

    • The developed technique demonstrated high accuracy in calculating IOL power.
    • Calculated IOL powers for ten implanted lenses (9 D to 27 D) showed a maximum error of 0.5 D.
    • The average error for the calculated IOL powers was found to be 0.17 D.

    Conclusions:

    • The described slitlamp-based method provides a simple and accurate approach for determining intraocular lens power.
    • This technique has the potential to improve the efficiency and precision of post-operative IOL power assessment.