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

Variations in the monocular components of fixation disparity

R W Reading1

  • 1School of Optometry, Indiana University, Bloomington.

Optometry and Vision Science : Official Publication of the American Academy of Optometry
|June 1, 1994
PubMed
Summary

Prism use in vision studies reveals that eye alignment strategies vary individually. Adaptation to prism involves complex, sometimes unilateral, changes influenced by voluntary effort.

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

Vergence errors: some hitherto unreported aspects of fixation disparity.

Optometry and vision science : official publication of the American Academy of Optometry·1992
Same author

Comparison of two fixation disparity determinantions.

Optometry and vision science : official publication of the American Academy of Optometry·1989
Same author

Vergence instabilities and the longitudinal horopter.

Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists)·1986
Same author

Nonius horopter in projected viewing.

American journal of optometry and physiological optics·1986
Same author

The longitudinal horopter in exotropia.

Acta ophthalmologica·1985
Same author

Determinations of the horopter in esotropia.

Documenta ophthalmologica. Advances in ophthalmology·1985

Area of Science:

  • Ophthalmology
  • Neuroscience
  • Vision Science

Background:

  • Binocular vision relies on coordinated eye movements.
  • Fixation disparity, a small misalignment, can be influenced by prism.
  • Understanding adaptive responses to prism is crucial for vision science.

Purpose of the Study:

  • To investigate how lateral prisms affect monocular contributions to fixation disparity.
  • To explore the adaptive strategies employed by the visual system in response to prism.
  • To analyze the time course and individual variability of prism adaptation.

Main Methods:

  • Measurements of monocular fixation disparity components were taken with lateral prisms.
  • Vergence stimuli were manipulated to observe changes in eye alignment.

Related Experiment Videos

  • Data were collected across different subjects and experimental conditions.

    • Main Results:

    • Prism use altered the proportional contribution of each eye to fixation disparity.
    • The independence of eye activity during binocular viewing was generally maintained.
    • Observed adaptive strategies included unilateral fixation, conjugate deviations, and distributed deviations.
    • Prism adaptation exhibited variable time courses and extents, often occurring unilaterally.

    Conclusions:

    • The visual system employs diverse, adaptive strategies to manage fixation disparity under prism.
    • Individual differences and voluntary activity significantly influence prism adaptation.
    • These findings highlight the dynamic nature of binocular vision and adaptation mechanisms.