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Ocular-following responses in school-age children
Aleksandar Miladinović1,2, Christian Quaia3, Miloš Ajčević2
1Department of Ophthalmology, Institute for Maternal and Child Health-IRCCS Burlo Garofolo, Trieste, Italy.
Plos One
|November 10, 2022
Summary
Ocular following responses (OFRs) were successfully recorded in children using a novel video-oculography system. This non-invasive method shows potential for clinical use in assessing visual development.
Area of Science:
- Neuroscience
- Ophthalmology
- Visual Science
Background:
- Ocular following eye movements (OFRs) offer insights into visual motion processing and stereoanomalies.
- Clinical application of OFRs is limited by recording difficulties and lack of pediatric data.
Purpose of the Study:
- To investigate the feasibility of non-invasively recording ocular following responses (OFRs) in school-age children.
- To assess the properties of OFRs in a pediatric population for potential clinical use.
Main Methods:
- Recorded OFRs in 14 children (ages 6-13) using a custom-developed, high-resolution video-oculography system.
- OFRs were defined as eye position changes within 80-160 ms after stimulus motion onset.
- Recording conditions mimicked a clinical setting for practical application.
Main Results:
- OFRs were successfully detected non-invasively in all participating children during short recording sessions.
- Significant inter-subject variability (factor of 4) in OFR magnitude was observed, but not correlated with age.
- Power analysis confirmed the system's ability to detect even smaller movements.
Conclusions:
- The ocular following system is well-developed by age six.
- Non-invasive recording of OFRs in young children is feasible in a clinical setting.
- The developed video-oculography system shows promise for pediatric clinical applications.
