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

Normal saccadic velocities.

E L Raab

    Journal of Pediatric Ophthalmology and Strabismus
    |January 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    This study found that horizontal saccadic peak velocity measurements using the Tracoustics RV-275 recorder are comparable between laboratories. A peak velocity under 300 degrees/sec for 20-degree horizontal saccades is likely abnormal.

    Related Experiment Videos

    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

    Recurrent esotropia.

    Journal of pediatric ophthalmology and strabismus·2014
    Same author

    Ophthalmic findings in a patient with CD8-positive T cell lymphoma and a hydroa vacciniforme-like eruption.

    The British journal of ophthalmology·2010
    Same author

    Construction and test of phase zone plates for x-ray microscopy.

    Optics letters·2009
    Same author

    Soft-x-ray projection lithography: printing of 0.2-microm features using a 20:1 reduction.

    Optics letters·2009
    Same author

    Atomic-density-dependent losses in an optical trap.

    Optics letters·2009
    Same author

    Monitoring of controlled accommodative esotropia.

    Transactions of the American Ophthalmological Society·2002
    Same journal

    TeleROP-NI: Modernizing Retinopathy of Prematurity Screening in Northern Ireland to Enhance Decision-making and Ensure Sustainability.

    Journal of pediatric ophthalmology and strabismus·2026
    Same journal

    Ocular Microstructural Alterations in Children With Spina Bifida: An Optical Coherence Tomography Study.

    Journal of pediatric ophthalmology and strabismus·2026
    Same journal

    Systemic Inflammatory Markers and Their Relationship With Optic Nerve Head Alterations in Pediatric Idiopathic Intracranial Hypertension.

    Journal of pediatric ophthalmology and strabismus·2026
    Same journal

    Evaluating Large Language Models to Improve Spanish Patient Education on Childhood Glaucoma.

    Journal of pediatric ophthalmology and strabismus·2026
    Same journal

    Comparative Evaluation of Unilateral Recession-Plication Versus Bilateral Three-Muscle Surgery for Large-Angle Exotropia.

    Journal of pediatric ophthalmology and strabismus·2026
    Same journal

    Long-term Visual Sequelae of Shaken Baby Syndrome: A Retrospective Study of 52 Cases.

    Journal of pediatric ophthalmology and strabismus·2026
    See all related articles

    Area of Science:

    • Ophthalmology
    • Neuroscience
    • Biomedical Engineering

    Background:

    • Establishing normative data for eye movement analysis is crucial for accurate diagnosis.
    • Laboratory-specific calibration can be time-consuming and resource-intensive.
    • The Tracoustics RV-275 recorder is a tool used for measuring eye movements.

    Purpose of the Study:

    • To assess the comparability of horizontal saccadic peak velocity measurements between two different laboratories using the Tracoustics RV-275 recorder.
    • To establish a reference range for normal horizontal saccadic peak velocity in a specific age group.
    • To determine if fixation by the recorded or non-recorded eye affects saccadic velocity measurements.

    Main Methods:

    • Twenty neurologically normal subjects (ages 8-32) without a history of strabismus or ocular surgery participated.
    • Horizontal saccades of 20 degrees were recorded using the Tracoustics RV-275 recorder.
    • Peak saccadic velocities were measured during fixation with both the recorded and non-recorded eyes.

    Main Results:

    • Peak saccadic velocities ranged from 281 to 541 degrees/sec (mean = 393 +/- 50 SD).
    • Mean velocities were similar whether the recorded or non-recorded eye was fixating.
    • A 20-degree peak horizontal saccadic velocity below 300 degrees/sec was identified as potentially abnormal.

    Conclusions:

    • Results obtained with the Tracoustics RV-275 recorder are comparable between laboratories, reducing the need for individual lab calibration.
    • A threshold of <300 degrees/sec for 20-degree horizontal saccades suggests abnormal function.
    • Antagonist and symmetric movement comparisons may be unreliable in cases of bilateral or multiple rotation abnormalities.