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 Concept Videos

You might also read

Related Articles

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

Sort by
Same author

Nano formulation of Sophora japonica extract stimulates osteogenic activity in osteoblasts.

Journal of food science and technology·2026
Same author

Temporal trends in <i>Salmonella</i> serovar distribution and antimicrobial resistance profiles, including plasmid-mediated colistin resistance, among livestock-derived isolates in South Korea, 2019-2024.

Frontiers in microbiology·2026
Same author

Antimicrobial resistance and genetic characterization of <i>Clostridium perfringens</i> isolated from companion animals in South Korea, 2018-2024.

One health (Amsterdam, Netherlands)·2026
Same author

A rule-based mobile screening classifier for six ICVD-defined vestibular disorders: a pilot study.

Scientific reports·2026
Same author

Longitudinal surveillance and molecular characterization of methicillin-resistant Staphylococcus aureus (MRSA) from livestock carcasses in South Korea: A 12-year nationwide study (2013-2024).

Food microbiology·2026
Same author

Oral function and physical function converge: national evidence linking functional teeth, scaling care, and muscle strength.

BMC geriatrics·2026

Related Experiment Video

Updated: Oct 14, 2025

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
06:09

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition

Published on: August 18, 2023

2.0K

A Novel Technique for Measuring Ocular Duction Ranges.

Jae Yun Sung1, Kee Sup Park2, Yunseo Ku3

  • 1Department of Ophthalmology, Chungnam National University Sejong Hospital, Sejong, Korea.

Translational Vision Science & Technology
|November 1, 2021
PubMed
Summary

A new laser pointer technique (LPT) offers a simpler, faster method for measuring ocular ductions. While less extensive than the Goldmann perimeter technique, LPT shows excellent repeatability for evaluating motility disorders.

More Related Videos

Ultrahigh Resolution Mouse Optical Coherence Tomography to Aid Intraocular Injection in Retinal Gene Therapy Research
10:10

Ultrahigh Resolution Mouse Optical Coherence Tomography to Aid Intraocular Injection in Retinal Gene Therapy Research

Published on: November 2, 2018

9.5K
In Vivo Methods to Assess Retinal Ganglion Cell and Optic Nerve Function and Structure in Large Animals
12:18

In Vivo Methods to Assess Retinal Ganglion Cell and Optic Nerve Function and Structure in Large Animals

Published on: February 26, 2022

10.1K

Related Experiment Videos

Last Updated: Oct 14, 2025

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition
06:09

Optic Nerve Sheath Point of Care Ultrasound: Image Acquisition

Published on: August 18, 2023

2.0K
Ultrahigh Resolution Mouse Optical Coherence Tomography to Aid Intraocular Injection in Retinal Gene Therapy Research
10:10

Ultrahigh Resolution Mouse Optical Coherence Tomography to Aid Intraocular Injection in Retinal Gene Therapy Research

Published on: November 2, 2018

9.5K
In Vivo Methods to Assess Retinal Ganglion Cell and Optic Nerve Function and Structure in Large Animals
12:18

In Vivo Methods to Assess Retinal Ganglion Cell and Optic Nerve Function and Structure in Large Animals

Published on: February 26, 2022

10.1K

Area of Science:

  • Ophthalmology
  • Vision Science
  • Medical Devices

Background:

  • Accurate measurement of ocular ductions is crucial for diagnosing motility disorders.
  • Existing methods like the Goldmann perimeter technique (GPT) can be time-consuming and require specialized equipment.

Purpose of the Study:

  • To introduce and evaluate a novel laser pointer technique (LPT) for quantitative measurement of ocular ductions.
  • To compare the performance of LPT with the established Goldmann perimeter technique (GPT) in healthy participants.

Main Methods:

  • Developed a laser pointer technique (LPT) involving a screen, headset, and laser pointer for measuring ocular ductions.
  • Recruited 28 healthy volunteers to assess ocular ductions using both LPT and GPT.
  • Compared measurements, testing time, and repeatability between the two techniques.

Main Results:

  • Mean horizontal and vertical duction ranges were 95.2° ± 10.1° and 84.1° ± 10.8° with LPT, versus 113.2° ± 14.1° and 105.8° ± 12.5° with GPT (P < 0.05).
  • LPT testing was significantly faster (56.1 ± 4.5s) than GPT (92.3 ± 11.6s) (P = 0.003).
  • Both techniques demonstrated excellent intraobserver repeatability, with LPT showing superior interobserver repeatability.

Conclusions:

  • The laser pointer technique (LPT) is a reproducible, accurate, and simple method for measuring ocular ductions.
  • LPT is a valuable tool for initial evaluation of ocular motility disorders, especially when advanced equipment is unavailable.