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A Method to Quantify Visual Information Processing in Children Using Eye Tracking
Published on: July 9, 2016
Visual assessment of preterm and full-term infants under the age of 12 months using the Preverbal Visual Assessment
Jungjae Lee1, Mee-Gang Kim1, Hae-Yeon Park1
1Department of Rehabilitation Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
Insights
Preterm infants show delayed visual maturation compared to full-term infants, as assessed by the Preverbal Visual Assessment (PreViAs) tool. This finding highlights the need for early visual assessments in high-risk newborns.
Area of Science:
- Developmental Pediatrics
- Ophthalmology
- Neonatology
Background:
- Infants develop complex visual skills within the first year of life.
- Premature infants face elevated risks for abnormal visual and neurological development.
- Traditional clinical evaluations offer limited insight into visual maturation in infants under 12 months.
Purpose of the Study:
- To compare visual maturation between preterm and full-term infants younger than 12 months.
- To evaluate the utility of the Preverbal Visual Assessment questionnaire (PreViAs) in this population.
Main Methods:
- Retrospective cross-sectional analysis of infants under 12 months receiving early intervention.
- Infants categorized as preterm or full-term and by age subgroups (0-4, 4-8, 8-12 months).
- Assessment using the Preverbal Visual Assessment questionnaire (PreViAs).
Main Results:
- Preterm infants (n=200) exhibited significantly lower mean PreViAs scores than full-term infants (n=225) across all age groups.
- Very preterm and very low birth weight infants demonstrated significantly lower scores than moderate-to-late preterm infants.
- Patent ductus arteriosus, retinopathy of prematurity, and birth weight correlated significantly with PreViAs global scores.
Conclusions:
- The Preverbal Visual Assessment (PreViAs) questionnaire is a valuable tool for assessing infant visual development.
- PreViAs is particularly useful for identifying visual maturation deficits in high-risk infants, including preterm neonates.
- The study underscores the importance of early and specialized visual assessments for preterm infants.
Background:
Infants develop many complex visual competences within the first 12 months of life. Premature infants are at high risk for abnormal visual and neurological development. Clinical medical history or neurologic evaluation do not give enough information on visual maturation in infants under 12 months of age.
Aims:
To compare visual maturation between preterm and full-term infants aged under 12 months, using the Preverbal Visual Assessment questionnaire (PreViAs).
Study Design:
Retrospective cross-sectional analysis.
Subjects:
Infants aged under 12 months, who visited our rehabilitation department for early intervention. Infants were categorized as either preterm or full-term, and assigned to one of three subgroups (0-4 months, 4-8 months, 8-12 months) according to corrected or chronological age.
Outcome Measures:
PreViAs scores.
Results:
There were 200 preterm and 225 full-term infants analyzed. The mean global PreViAs scores among preterm infants were significantly lower than among full-term infants in all age groups (0-4 months: p = 0.033, 4-8 months: p = 0.005, and 8-12 months: p = 0.008). The mean global scores and four subdomain scores of the PreViAs were significantly lower (p < 0.001) in very preterm (under 32-weeks gestational age) and very low birth weight (under 1500 g birth weight) than in moderate-to-late preterm infants (between 32- to 37- weeks gestational age) and infants with birth weight above 1500 g. Patent ductus arteriosus, retinopathy of prematurity, and birth weight (percent) showed significant correlation with PreViAs global scores.
Conclusion:
PreViAs is a useful tool for visual assessment of infants under 12 months, especially in high-risk infants.
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