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

Determination of spatial coordinates in ocular fluorometry.

M Larsen1, P Dalgaard, H Lund-Andersen

  • 1Department of Ophthalmology, Gentofte Hospital, University of Copenhagen, Hellerup, Denmark.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|January 1, 1991
PubMed
Summary

A new method accurately determines ocular fluorescence measurement coordinates using a mathematical eye model. This fluorometry technique precisely measures axial length, with results closely matching ultrasonometry.

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

Arterial blood ionised calcium activity in periparturient Holstein cows fed an alkaline low-energy density or acidifying high-energy density close-up prepartum rations.

Animal : an international journal of animal bioscience·2026
Same author

Effects of feeding beets and ensiled beets on rumen volatile fatty acid and ethanol metabolism in dairy cows.

Journal of dairy science·2025
Same author

Effects of feeding beets and ensiled beets on postabsorptive ethanol metabolism and enteric gas emission in dairy cows.

Journal of dairy science·2025
Same author

Canadian Surgery Forum: Abstracts of presentations to the Annual Meetings of the Canadian Association of Bariatric Physicians and Surgeons, Canadian Association of General Surgeons, Canadian Association of Thoracic Surgeons, Canadian Hepato-Pancreato-Biliary Association, Canadian Society of Surgical Oncology, Canadian Society of Colon and Rectal Surgeons, Vancouver, BC, Sept. 17-21, 2013.

Canadian journal of surgery. Journal canadien de chirurgie·2025
Same author

Effect of nitrate supplementation on diurnal emission of enteric methane and nitrous oxide.

JDS communications·2024
Same author

A Gestational Supplementation With 2'-Fucosyllactose Is an Effective Strategy to Prevent Food Allergy.

Allergy·2024

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Optical Physics

Background:

  • Accurate ocular measurements are crucial for diagnosing and monitoring eye conditions.
  • Non-contact methods for ocular biometry are desirable to improve patient comfort and reduce infection risk.
  • Existing fluorometry techniques may require calibration or lack precise spatial coordinate determination.

Purpose of the Study:

  • To develop and validate a novel method for determining spatial coordinates of ocular fluorescence measurements.
  • To adapt a mathematical model of the eye and a non-contact fluorometer (Fluorotron) for individual patient use.
  • To assess the accuracy of this fluorometry-based method by comparing ocular axial length measurements with ultrasonometry.

Main Methods:

  • Developed a mathematical model incorporating instrument and individual eye parameters.

Related Experiment Videos

  • Utilized fluorescence scan data and keratometry to determine the anterior corneal curvature radius.
  • Compared axial length measurements obtained via the novel fluorometry method with those from standard ultrasonometry in 26 healthy human eyes.

    • Main Results:

    • The developed method successfully determined spatial coordinates for ocular fluorescence measurements.
    • The mathematical model was effectively adapted to individual eyes using fluorescence and keratometry data.
    • Ocular axial length measurements by fluorometry showed a difference of less than +/- 2% compared to ultrasonometry.

    Conclusions:

    • The novel method provides accurate spatial coordinate determination for ocular fluorescence measurements.
    • This non-contact fluorometry technique offers a reliable and precise alternative for ocular axial length measurement.
    • The validated method holds potential for improved ophthalmic diagnostics and research.