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Related Experiment Video

Updated: Dec 10, 2025

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

An Open-source Static Threshold Perimetry Test Using Remote Eye-tracking (Eyecatcher): Description, Validation, and

Pete R Jones^1,2,3

¹University College London (UCL), Institute of Ophthalmology, London, UK.

Translational Vision Science & Technology

|August 29, 2020

Summary

This summary is machine-generated.

The Eyecatcher, an open-source eye-movement perimeter, accurately assesses visual fields in normally sighted adults, matching the performance of the Humphrey Field Analyzer. This technology shows promise for patients unable to use traditional perimetry devices.

Keywords:

ZEST eye-tracking field loss hill of vision luminance sensitivity standard automated perimetry static perimetry tangent screen threshold visual field

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Last Updated: Dec 10, 2025

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A Method to Quantify Visual Information Processing in Children Using Eye Tracking

A Method to Quantify Visual Information Processing in Children Using Eye Tracking

Published on: July 9, 2016

Area of Science:

Ophthalmology
Neuroscience
Medical Devices

Background:

Traditional visual field testing is crucial for diagnosing and monitoring various ocular and neurological conditions.
Existing perimetry methods can be challenging for certain patient populations, including young children and individuals with neurological impairments.
The development of novel, accessible, and accurate visual field assessment tools is an ongoing area of research.

Purpose of the Study:

To introduce and validate the Eyecatcher, an open-source eye-movement-based perimeter.
To provide preliminary normative data for visual field assessment using the Eyecatcher system.
To compare the performance of the Eyecatcher with a standard clinical visual field testing device.

Main Methods:

Visual field testing was conducted monocularly on 64 healthy young adults.
Participants were tested using both the Humphrey Field Analyzer (HFA) and the novel Eyecatcher procedure.
The Eyecatcher utilizes a remote eye-tracker to present stimuli based on fixation, with responses indicated by looking at the stimulus.

Main Results:

Mean Sensitivity (MS) was comparable between the Eyecatcher and the HFA (P = 0.086).
Both devices demonstrated similar test-retest repeatability (Eyecatcher: ±1.86 dB; HFA: ±1.95 dB).
The Eyecatcher successfully mapped the normal visual field's sensitivity gradient and distinguished the blind spot.

Conclusions:

The Eyecatcher system effectively assesses visual fields in young, normally sighted adults.
Results from the Eyecatcher are comparable to the established clinical standard, the HFA.
The open-source nature and potential adaptability of Eyecatcher offer future clinical utility, particularly for non-traditional patient groups.