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Updated: May 21, 2026
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Exploring Infant Sensitivity to Visual Language using Eye Tracking and the Preferential Looking Paradigm
Published on: May 15, 2019
A new perimeter using the preferential looking response to assess peripheral visual fields in young and
Louise E Allen1, Michael E Slater, Ruth V Proffitt
1University of Cambridge, The Old Schools, Trinity Lane, Cambridge, United Kingdom. louise.allen@addenbrookes.nhs.uk
Summary
A new preferential looking perimeter (PLP) accurately assesses visual field deficits in children. This method is highly sensitive and specific, offering a valuable alternative to traditional confrontation testing for pediatric visual field assessment.
Area of Science:
- Ophthalmology
- Pediatric Neurology
- Visual Science
Background:
- Assessing visual field deficits in young children or those with developmental delays presents significant challenges.
- Traditional methods like confrontation visual field testing can be unreliable or uninterpretable in this population.
Purpose of the Study:
- To evaluate the sensitivity, specificity, and interpretability of a novel semiautomated static perimeter utilizing preferential looking response.
- To compare the performance of this new perimeter against established confrontation visual field testing.
Main Methods:
- The study involved 74 children aged 3-10 years, including 32 controls and 42 with potential visual field deficits.
- The preferential looking perimeter (PLP) was used, observing natural eye movements to target stimuli to map the peripheral visual field.
- Confrontation visual field testing served as the gold standard for comparison.
Main Results:
- The PLP demonstrated 100% sensitivity and 100% specificity when compared to confrontation testing.
- Interobserver agreement for the PLP was excellent.
- Interpretable results were obtained in 71% of children for whom confrontation testing was unsuccessful.
Conclusions:
- The preferential looking perimeter (PLP) is an effective new tool for identifying significant visual field loss in young or developmentally delayed children.
- PLP offers distinct advantages over confrontation visual field testing for this pediatric cohort.
