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

Videonystagmography to assess blinking.

Guillaume Casse1, Jean-Pierre Sauvage, Jean-Paul Adenis

  • 1Department of Ophthalmology, CHU Dupuytren, 2 Av Martin Luther King, 87042 Limoges Cedex, France.

Graefe'S Archive for Clinical and Experimental Ophthalmology = Albrecht Von Graefes Archiv Fur Klinische Und Experimentelle Ophthalmologie
|June 29, 2007
PubMed
Summary
This summary is machine-generated.

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

French public care in ophthalmology: a nationwide survey.

Frontiers in medicine·2026
Same author

Contribution of 16S rRNA gene PCR to microbiological diagnosis of endophthalmitis: a retrospective clinical cohort study of 71 vitreous and aqueous humor samples.

Journal of ophthalmic inflammation and infection·2026
Same author

Standardization of Autologous Serum Eye Drops Preparation Practices in France: Delphi Method.

Journal of ocular pharmacology and therapeutics : the official journal of the Association for Ocular Pharmacology and Therapeutics·2026
Same author

[Sudden onset vision abnormality].

La Revue du praticien·2025
Same author

Analysis of pediatric ophthalmology surgical activity in metropolitan France in 2016: Its impact on training capacities.

Journal of epidemiology and population health·2024
Same author

Reflections on a Nobel Prize-winning legacy.

Nature reviews. Chemistry·2024

A new dynamic device accurately measures eyeblink dynamics, differentiating spontaneous blinking (SB) and voluntary blinking (VB) responses in healthy volunteers. This technology allows precise quantification of eyelid movements.

Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Neuroscience

Background:

  • Developed a dynamic device using a CCD camera and videonystagmography for blink measurement.
  • Incorporated an artificial pupil for precise tracking of upper eyelid movements.

Purpose of the Study:

  • To measure blinking parameters in healthy volunteers.
  • To differentiate between spontaneous blinking (SB) and voluntary blinking (VB).

Main Methods:

  • Measured blinking parameters in eight healthy volunteers.
  • Recorded closing time, opening time, closing speed, vertical/horizontal amplitude, and SB frequency.

Main Results:

  • Opening time was significantly longer than closing time in SB (p < 0.0001).

Related Experiment Videos

  • Closing speed was 87 m/s in SB and 168 m/s in VB.
  • Vertical amplitude was lower in SB (9.1 mm) than VB (12.3 mm) (p < 0.001).
  • Horizontal amplitude was lower in SB (2.7 mm) than VB (3.8 mm) (p < 0.05).
  • SB frequency averaged 18.4 per minute.

    • Conclusions:

    • Computer-assisted video acquisition enables real-time measurement of eyeblink dynamics.
    • The method accurately quantifies eyelid opening/closing responses and horizontal movement.
    • This technique effectively differentiates spontaneous from voluntary blinking.