BMI and retinal vascular caliber in children

Area of Science:

• Ophthalmology
• Pediatrics
• Public Health

Background:

• Retinal vascular caliber changes are associated with obesity and metabolic syndrome in adults.
• Understanding these associations in children is crucial for early detection and intervention.

Purpose of the Study:

• To investigate the relationship between body mass index (BMI) and weight with retinal vascular caliber in children.
• To determine if increased BMI or weight correlates with changes in retinal arteriolar or venular caliber in pediatric populations.

Main Methods:

• A school-based, cross-sectional study involving 768 children aged 7–9 years.
• Digital retinal photographs were analyzed using a computer-based program to measure retinal arteriolar and venular calibers.
• Body mass index (BMI) was calculated from standardized measurements of height and weight.

Main Results:

• Each standard deviation increase in BMI was associated with a significantly larger retinal venular caliber (2.55 microm).
• Greater weight was also significantly associated with larger retinal venular caliber in multivariable analysis.
• No significant associations were found between BMI, weight, or height and retinal arteriolar caliber.

Conclusions:

• Increased BMI and weight are associated with wider retinal venular caliber in healthy children.
• These findings highlight a potential link between childhood adiposity and early vascular changes in the retina.