Related Experiment Video
Updated: Mar 12, 2026
12:23
Dynamic Visual Tests to Identify and Quantify Visual Damage and Repair Following Demyelination in Optic Neuritis Patients
Published on: April 14, 2014
14.6K
Physiologic statokinetic dissociation is eliminated by equating static and kinetic perimetry testing procedures
Jack Phu1, Noha Al-Saleem2, Michael Kalloniatis3
1Centre for Eye Health, University of New South Wales, Kensington, NSW, AustraliaSchool of Optometry and Vision Science, University of New South Wales, Kensington NSWjphu@cfeh.com.au.
Journal of Vision
|November 10, 2016
Summary
Statokinetic dissociation (SKD) in visual field testing is primarily due to differences in testing methods and individual biases. Standardizing tasks eliminated observed SKD in normal observers.
Area of Science:
- Ophthalmology
- Visual Science
- Psychophysics
Background:
- Statokinetic dissociation (SKD) describes discrepancies between static and kinetic visual field testing.
- Understanding SKD is crucial for accurate visual field assessment.
Purpose of the Study:
- To measure the extent of SKD in normal observers.
- To investigate the influence of psychophysical task methodology on SKD.
- To determine if SKD is inherent to visual field testing procedures.
Main Methods:
- Utilized Humphrey visual field analyzer (static and automated kinetic perimetry) and Goldmann manual kinetic perimeter.
- Measured contrast sensitivity thresholds and isopters using a Goldmann size II target.
- Employed a two-interval forced choice (2IFC) procedure and method of constant stimuli for psychometric curve determination.
Main Results:
- Experiment 1 revealed the presence of SKD when comparing static and kinetic perimetry results.
- No contribution of examiner technique or instrument differences to SKD was found.
- Experiment 2, using a 2IFC procedure, equated eccentricity thresholds across static and kinetic methods, showing no evidence of SKD.
Conclusions:
- SKD appears inherent to the methodological differences between conventional static and kinetic perimetry.
- Individual criterion bias significantly contributes to the observed SKD.
- Standardizing psychophysical tasks and reducing criterion bias can eliminate SKD.
