The Human Touch: Using a Webcam to Autonomously Monitor Compliance During Visual Field Assessments.

ABSTRACT:

Purpose

To explore the feasibility of using various easy-to-obtain biomarkers to monitor non-compliance (measurement error) during visual field assessments.

Methods

Forty-two healthy adults (42 eyes) and seven glaucoma patients (14 eyes) underwent two same-day visual field assessments. An ordinary webcam was used to compute seven potential biomarkers of task compliance, based primarily on eye gaze, head pose, and facial expression. We quantified the association between each biomarker and measurement error, as defined by (1) test-retest differences in overall test scores (mean sensitivity), and (2) failures to respond to visible stimuli on individual trials (stimuli -3 dB or more brighter than threshold).

Results

In healthy eyes, three of the seven biomarkers were sign

SUBMITTER: Jones PR 

PROVIDER: S-EPMC7422775 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature