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

Lens power calculation--is it necessary?

P Percival

    Transactions of the Ophthalmological Societies of the United Kingdom
    |January 1, 1983
    PubMed
    Summary
    This summary is machine-generated.

    A Scan biometry improved refractive outcomes in intraocular lens (IOL) calculations, achieving 90% accuracy within the target refraction range. This method surpassed traditional clinical estimations for predicting postoperative refractive error in patients undergoing cataract surgery.

    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

    Effect of nappy liners on temperature stability in very preterm infants.

    Journal of paediatrics and child health·2017
    Same author

    Force matching errors following eccentric exercise.

    Human movement science·2004
    Same author

    Identifying athletes at risk of hamstring strains and how to protect them.

    Clinical and experimental pharmacology & physiology·2004
    Same author

    Effects of local pressure and vibration on muscle pain from eccentric exercise and hypertonic saline.

    Pain·2003
    Same author

    Force-matching errors after eccentric exercise attributed to muscle soreness.

    Clinical and experimental pharmacology & physiology·2003
    Same author

    Force matching at the elbow joint is disturbed by muscle soreness.

    Somatosensory & motor research·2003
    Same journal

    Brain stem and cerebellar deficits in eye movement control.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    Same journal

    Strategies in Doppler ultrasound.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    Same journal

    Congenital glaucoma--diagnosis and management.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    Same journal

    Prostaglandins and other eicosanoids: their ocular transport, pharmacokinetics, and therapeutic effects.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    Same journal

    Development of the ciliary body: a brief review.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    Same journal

    Computer automated visual acuity testing for visual screening.

    Transactions of the ophthalmological societies of the United Kingdom·1986
    See all related articles

    Area of Science:

    • Ophthalmology
    • Biomedical Engineering

    Background:

    • Accurate intraocular lens (IOL) power calculation is crucial for achieving desired postoperative refractive outcomes.
    • Traditional methods relying on clinical judgment have limitations in precision.
    • A Scan biometry offers a more objective approach to measuring ocular parameters for IOL power calculation.

    Purpose of the Study:

    • To evaluate the effectiveness of A Scan biometry in predicting postoperative refraction compared to clinical grounds and previous methods.
    • To assess the refractive outcomes in patients undergoing IOL implantation where A Scan biometry was used for power calculation.

    Main Methods:

    • A prospective study involving 70 patients where IOL power was calculated using A Scan biometry.
    • Comparison of refractive outcomes with a historical group of 569 patients who had IOLs implanted without biometry, relying on clinical judgment and limited diopter increments.

    Related Experiment Videos

  • Analysis of postoperative refraction within a target range of -1.75D to +0.75D.

    • Main Results:

    • 90% of patients in the A Scan biometry group achieved a postoperative refraction between -1.75D and +0.75D.
    • Only 69% of patients would have met this target using calculations based purely on clinical grounds.
    • In a historical group excluding high myopes and using 2.0D increments, 77% achieved the target refraction with clinical judgment.

    Conclusions:

    • A Scan biometry significantly enhances the accuracy of IOL power calculation, leading to improved refractive outcomes.
    • Biometry-based calculations provide a more predictable and precise method for achieving target postoperative refraction compared to clinical estimation alone.
    • The findings support the routine use of A Scan biometry in ophthalmic surgery for optimizing visual results.