Related Experiment Video
Updated: Mar 27, 2026
Comparison of Three Clinical Stereoscopic Methods for Measuring Binocular Visual Function During Amblyopic Treatment in Unilateral Amblyopia
Published on: September 27, 2024
Impact of refractive amblyopia on neuromotor and cognitive development in children aged 6-11 years
O Özkan1, A A Sari2, E Sevimli3
1Department of Ophthalmology, Uskudar University Faculty of Medicine, 34768 Istanbul, Turkey.
Insights
Refractive amblyopia impacts children's neuromotor and cognitive skills, even with good binocular vision. Early detection and treatment are crucial for development.
Area of Science:
- Pediatric Ophthalmology
- Developmental Neuroscience
- Child Psychology
Background:
- Refractive amblyopia, a common cause of reduced vision in children, is often associated with visual acuity deficits.
- However, its broader impact on non-visual developmental domains requires further investigation.
Purpose of the Study:
- To examine the effects of refractive amblyopia on neuromotor and cognitive development in children aged 6-11 years.
- To assess potential deficits using standardized neurodevelopmental tests prior to treatment.
Main Methods:
- Retrospective evaluation of 25 children (6-11 years) with refractive amblyopia.
- Administration of the Wechsler Intelligence Scale for Children-IV (WISC-IV) and Bender-Gestalt Visual Motor Test (BGT).
- Comparison of results with normative data and analysis based on amblyopia severity.
Main Results:
- Significant deficits were observed in verbal comprehension (92%), working memory (48%), and processing speed (48%) via WISC-IV.
- The Bender-Gestalt Visual Motor Test revealed below-normal scores in 96% of children, indicating neuromotor difficulties.
- A high percentage (68%) of children scored below normal on the Full-Scale IQ.
Conclusions:
- Refractive amblyopia is linked to significant neuromotor and cognitive impairments, extending beyond visual acuity.
- Subtle developmental deficits are present even when binocular visual acuity appears largely preserved.
- Emphasizes the critical need for early diagnosis and intervention to mitigate long-term developmental disadvantages.
Purpose:
To investigate the effects of refractive amblyopia on neuromotor and cognitive development in children aged 6-11 years.
Methods:
Twenty-five children diagnosed with refractive amblyopia at the Ophthalmology Clinic of Mersin University were retrospectively evaluated. The age distribution was 6 years (n=4), 7 years (n=5), 8 years (n=6), 9 years (n=4), 10 years (n=3) and 11 years (n=3). Spherical equivalent refractive error ranged from -4.00 to +7.50 diopters in the right eye and -1.50 to +7.25 diopters in the left eye. Binocular visual acuity was 1.0 in 23 children, while two children had mildly reduced binocular acuity (0.6 and 0.8). All subjects underwent the Wechsler Intelligence Scale for Children-IV (WISC-IV) test and the Bender-Gestalt Visual Motor Test (BGT) at the time of diagnosis, before initiation of optical treatment. Results were compared with normative values and analyzed according to amblyopia severity.
Results:
Among the children, 72% had anisometropic, 20% meridional, and 8% isoametropic amblyopia. WISC-IV subtests revealed deficits in verbal comprehension (92%), working memory (48%), and processing speed (48%). The Full-Scale IQ was below normal in 68% of cases. BGT scores were below normal in 96% of children. No significant correlation was found between amblyopia severity and test outcomes (p>0.05).
Conclusions:
Refractive amblyopia appears to affect not only visual acuity but also neuromotor and cognitive development. Despite largely preserved binocular visual acuity in most children, subtle neuromotor and cognitive deficits were clearly evident. Early detection and treatment are critical in minimizing developmental disadvantages associated with amblyopia.
