Vision Development Differences between Slow and Fast Motor Development in Typical Developing Toddlers: A...

Area of Science:

• Developmental Pediatrics
• Ophthalmology
• Motor Control

Background:

• Established links exist between visual function and motor development in young children.
• Previous research has not specifically focused on the visual-motor interplay in two-year-olds.

Purpose of the Study:

• To investigate the relationship between visual and motor system development in typically developing toddlers.
• To describe potential changes and correlations between visual and motor skills in this age group.

Main Methods:

• An observational, descriptive, cross-sectional study involving 116 toddlers (mean age 29.57 months).
• Assessed motor skills including dominant limb, stationary/locomotion/object manipulation abilities, grasping, visual motor integration, and motor quotients.
• Evaluated visual development including visual acuity, refractive error, ocular alignment, motor fusion, ocular motility, and stereopsis.

Main Results:

• Toddlers with slower gross motor development exhibited significantly higher exophoria and a further near point of convergence compared to those with faster gross motor development (p < 0.05).
• No significant differences in visual acuity or stereopsis were observed between the slow and fast gross motor development groups.

Conclusions:

• Slower gross motor development in toddlers may be associated with specific binocular vision anomalies, such as exophoria and impaired convergence.
• Further research is warranted to understand the causal pathways and implications of these visual-motor relationships in early childhood development.