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Updated: May 23, 2026
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A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
A qualitative investigation of visual tasks with which to assess distance-specific visual function
Mark J Atkinson1, Steven Tally, Chris W Heichel
1Department of Family and Preventive Medicine, UCSD, San Diego, CA, USA. mjatkinson@ucsd.edu
Summary
This study identified key visual tasks across near, intermediate, and distance ranges. Findings highlight the impact of visual acuity on daily activities, especially technology use and safe task performance.
Area of Science:
- Ophthalmology
- Human Factors
- Vision Science
Background:
- Daily task performance depends on visual acuity at multiple distances.
- Existing visual function assessments lack comprehensive task content, particularly for intermediate vision.
Purpose of the Study:
- To expand the range of tasks assessed for visual function.
- To improve coverage of visual tasks across near, intermediate, and distant visual ranges.
Main Methods:
- Qualitative sub-studies including journaling and interviews with 72 ophthalmology patients.
- Thematic analysis of journal entries and transcripts to identify visual tasks.
- Inclusion of patients with myopia, hyperopia, presbyopia, astigmatism, cataracts, and glaucoma.
Main Results:
- Identification of diverse distance-specific visual tasks.
- Tasks related to ambulation, driving, leisure, and social functions rely on distance vision.
- Technology use and daily living activities primarily depend on near and intermediate vision.
- New content areas identified: technology use and safe task performance.
Conclusions:
- Thematic analysis yielded extensive data on visual tasks impacting daily life.
- Poor visual acuity at various distances significantly complicates task performance.
- The findings inform the development of more comprehensive visual function assessments.
