Related Experiment Video
Updated: May 7, 2026
Eye Tracking Young Children with Autism
Published on: March 27, 2012
Saccadic Vector Optokinetic Perimetry (SVOP): a novel technique for automated static perimetry in children using eye
Insights
A new visual field test, Saccadic Vector Optokinetic Perimetry (SVOP), uses eye tracking to assess vision in children. This method effectively identifies visual field defects in young patients who cannot complete traditional automated static perimetry.
Area of Science:
- Ophthalmology
- Neuroscience
- Medical Technology
Background:
- Perimetry is crucial for diagnosing visual field defects from eye and brain conditions.
- Automated static perimetry (ASP) is challenging for young children due to performance limitations.
Purpose of the Study:
- Introduce Saccadic Vector Optokinetic Perimetry (SVOP), a novel ASP method tailored for children.
- Evaluate the clinical efficacy of SVOP in detecting visual field defects.
Main Methods:
- SVOP utilizes eye tracking to analyze saccadic eye responses to visual stimuli.
- A software algorithm was developed based on gaze response direction and magnitude.
- Clinical evaluation involved 24 subjects (children and adults) compared against the Humphrey Field Analyser (HFA).
Main Results:
- SVOP demonstrated promising results comparable to the reference HFA test.
- The method proved highly effective in identifying visual field defects in children.
- SVOP successfully tested children unable to perform traditional ASP.
Conclusions:
- SVOP is a viable and effective tool for pediatric visual field assessment.
- This novel perimetry technique expands diagnostic capabilities for visual field defects in children.
Abstract:
Perimetry is essential for identifying visual field defects due to disorders of the eye and brain. However, young children are often unable to reliably perform the preferred method of visual field assessment known as automated static perimetry (ASP). This paper introduces a novel method of ASP specifically developed for children called Saccadic Vector Optokinetic Perimetry (SVOP). SVOP uses eye tracking to detect the natural saccadic eye response of gaze orientation towards visual field stimuli if they are seen. In this paper, the direction and magnitude of a sample of subject gaze responses to visual field stimuli is used to construct a software decision algorithm for use in SVOP. SVOP was clinically evaluated in a group of 24 subjects, comprising children and adults, with and without visual field defects, by comparison with an equivalent test on the Humphrey Field Analyser (HFA). SVOP provides promising visual field test results when compared with the reference HFA test, and has proven extremely useful in detecting visual field defects in children unable to perform traditional ASP.
