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Related Experiment Video

Updated: May 14, 2026

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Assessing Binocular Central Visual Field and Binocular Eye Movements in a Dichoptic Viewing Condition

Published on: July 21, 2020

Version-vergence interactions during memory-guided binocular gaze shifts.

Joyce Dits¹, Johan J M Pel, Angelique Remmers

¹Department of Neuroscience, Erasmus University Medical Center, Rotterdam, The Netherlands.

Investigative Ophthalmology & Visual Science

|February 14, 2013

Summary

This summary is machine-generated.

Visually guided gaze shifts are more accurate than memory-guided ones. During memory-guided shifts, the abducting eye leads, and convergence accuracy is reduced, impacting binocular gaze control.

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Area of Science:

Ophthalmology
Neuroscience
Vision Science

Background:

Accurate binocular gaze shifts (version and vergence) are crucial for visual orientation.
Understanding the distinct roles of each eye during gaze shifts is essential for diagnosing visual disorders.

Purpose of the Study:

To determine the accuracy of combined version and vergence movements during gaze shifts.
To investigate the contribution of the abducting and adducting eye during memory-guided and visually guided gaze shifts in 3D space.

Main Methods:

Subjects performed memory-guided and visually guided gaze shifts towards targets at varying distances.
Gaze shifts involved both version (direction) and vergence (distance) movements.
The accuracy of each eye (abducting and adducting) was analyzed during these shifts.

Main Results:

Visually guided gaze shifts were more accurate, featuring fast intrasaccadic and slow postsaccadic vergence.
During memory-guided shifts, the abducting eye was more accurate than the adducting eye.
Memory-guided convergence lacked intrasaccadic vergence and was less accurate than divergence.

Conclusions:

Visually guided binocular gaze shifts are superior in speed and accuracy compared to memory-guided shifts.
The abducting eye plays a primary role in memory-guided gaze shifts.
Reduced intrasaccadic vergence during convergence impacts the accuracy of memory-guided gaze shifts.