Related Experiment Video
Updated: Mar 13, 2026

Gaze in Action: Head-mounted Eye Tracking of Children's Dynamic Visual Attention During Naturalistic Behavior
Published on: November 14, 2018
Growth Trajectories During Early Childhood and Ocular Development in High-Risk Infants
Yingya Zhao1, Yu Ma2, Yun Li3
1Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, People's Republic of China.
Insights
Accelerated growth in the first year of life is linked to poorer visual acuity and refractive outcomes in high-risk infants. This highlights the critical importance of early systemic growth for infant eye development.
Area of Science:
- Pediatric Ophthalmology
- Developmental Pediatrics
- Growth Monitoring
Background:
- High-risk infants often exhibit atypical growth patterns and are susceptible to visual impairments.
- Limited evidence exists linking early systemic growth trajectories with ocular development in this vulnerable population.
Purpose of the Study:
- To investigate the association between growth trajectories from birth to 3 years and ocular development in high-risk infants.
- To identify critical periods of growth influencing visual acuity and refractive status.
Main Methods:
- A population-based prospective study of 10,030 high-risk infants.
- Repeated measurements of weight, length, BMI, and head circumference from birth to 36 months.
- Calculation of growth velocities and assessment of uncorrected visual acuity (UCVA) and cycloplegic spherical equivalent refraction (SER) at 3-4 years.
Main Results:
- Poorer UCVA was observed in preterm and term low-birth-weight infants compared to macrosomic infants.
- Preterm infants had the most hyperopic SER, while macrosomic infants had the least.
- Accelerated growth between 0-12 months was consistently associated with poorer UCVA and more hyperopic SER.
Conclusions:
- Accelerated early-life growth, particularly within the first year, is associated with less favorable visual and refractive outcomes in high-risk infants.
- The first postnatal year represents a critical window for coordinated systemic and ocular development.
Purpose:
High-risk infants often show atypical postnatal growth and may be vulnerable to visual impairment, yet evidence linking early-life systemic growth with ocular development remains limited. This study investigated the associations between growth trajectories during early childhood (birth to 3 years) and ocular development in high-risk infants.
Methods:
In this population-based prospective study, 10,030 high-risk infants underwent repeated measurements of weight, length, body mass index (BMI), and head circumference from birth to 36 months. Growth velocities were calculated as changes in World Health Organization (WHO)-standardized z scores across developmental intervals. Uncorrected visual acuity (UCVA; logMAR) and cycloplegic spherical equivalent refraction (SER; diopters [D]) were assessed at 3 to 4 years. Associations between growth increments and ocular outcomes were examined using multivariable linear regression adjusting for demographic and perinatal factors.
Results:
Of the total, 36.6% were preterm, 6.9% were term low-birth-weight, and 31.7% were macrosomic. UCVA exhibited a graded pattern (P < 0.001): poorest in preterm infants (0.229 [0.224-0.234]), followed by term low-birth-weight (0.225 [0.215-0.235]) and term normal-birth-weight infants (0.219 [0.213-0.225]), whereas macrosomic infants showed comparable or slightly better UCVA (0.213 [0.207-0.219]). SER was most hyperopic among preterm infants (0.433 [0.410-0.456]) and least hyperopic among macrosomic infants (0.389 [0.360-0.419]). Accelerated growth during 0 to 6 and 6 to 12 months was consistently associated with poorer visual acuity and a more hyperopic refractive profile, with no significant associations observed beyond 12 months.
Conclusions:
Accelerated early-life growth was linked to less favorable visual acuity and refractive outcomes, highlighting the first postnatal year as a critical period for coordinated systemic and ocular development.
Related Concept Videos
Accessory Structures of the Eye
Glaucoma: Overview
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...

