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

The accommodative contribution to binocular vergence eye movements.

J Hesler1, D Pickwell, J Gilchrist

  • 1Postgraduate Department of Optometry, University of Bradford, West Yorkshire, UK.

Ophthalmic & Physiological Optics : the Journal of the British College of Ophthalmic Opticians (Optometrists)
|October 1, 1989
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

Consumer experiences of shame in clinical encounters for breast cancer treatment. "Who do you think you are- Angelina Jolie?"

Breast (Edinburgh, Scotland)·2023
Same author

Psychological intervention (ConquerFear) for treating fear of cancer recurrence: mediators and moderators of treatment efficacy.

Journal of cancer survivorship : research and practice·2019
Same author

Applying Data Preprocessing Methods to Predict Premature Birth.

Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference·2018
Same author

A two centre observational study of simultaneous pulse oximetry and arterial oxygen saturation recordings in intensive care unit patients.

Anaesthesia and intensive care·2018
Same author

Quality of life assessment in patients treated for metastatic cutaneous squamous cell carcinoma of the head and neck.

The Journal of laryngology and otology·2013
Same author

THz-Spectroscopy of Biological Molecules.

Journal of biological physics·2013
Same journal

Mesopic Illumination in Natural Environments: Implications for Myopia Research.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Axial Length Growth Reference Curves and LMS Parameters for Japanese Children and Adolescents Aged 4-20 Years: The TMM BirThree Cohort Study.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Effect of Switching Myopia Control Strategies on Axial Elongation in Children with Poor Response to Highly Aspherical Lenslet Therapy.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Quantifying the Role of Longitudinal Chromatic Aberration and Age in Night Vision Disturbances.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Impaired Rod-Mediated Vision is the Functional Hallmark of Ageing and Early and Intermediate Age-Related Macular Degeneration.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
Same journal

Analytical Performance, Spatial Dynamics and Clinically Meaningful Change Thresholds for Automated Non-invasive Tear Film Assessment Using the Oculus Keratograph 5M.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·2026
See all related articles

Asymptomatic subjects showed an exophoric shift in fixation disparity during convergence when accommodation was open loop. This vergence eye movement finding was not observed during divergence.

Area of Science:

  • Ophthalmology and Vision Science
  • Neuroscience
  • Biomechanics of Eye Movements

Background:

  • Fixation disparity and vergence eye movements are critical for binocular vision.
  • The interplay between accommodation and vergence is complex and not fully understood.
  • Previous studies have explored vergence adaptation, but the specific role of accommodative feedback requires further investigation.

Purpose of the Study:

  • To investigate the effect of accommodative stimulus on forced vergence fixation disparity curves.
  • To compare vergence behavior under accommodative closed-loop versus open-loop conditions.
  • To analyze potential directional biases in fixation disparity during convergence and divergence.

Main Methods:

  • Generated forced vergence fixation disparity curves for 15 asymptomatic subjects.

Related Experiment Videos

  • Tested conditions with and without an accommodative stimulus (accommodative closed-loop and open-loop).
  • Analyzed fixation disparity shifts at the convergence and divergence extremes of the curves.

    • Main Results:

    • All subjects demonstrated an exophoric shift in fixation disparity during the accommodative open-loop condition at the forced convergence side.
    • No significant bias in fixation disparity was observed at the forced divergence side of the curve.
    • The findings suggest a specific influence of accommodative feedback on vergence responses during convergence.

    Conclusions:

    • Accommodative feedback significantly influences vergence eye movements, particularly during convergence.
    • The observed exophoric shift highlights a potential mechanism in binocular vision regulation.
    • Results provide insights into existing models of vergence eye movements and inform future research directions.