Related Experiment Video
Updated: May 10, 2026

Trabecular Meshwork Response to Pressure Elevation in the Living Human Eye
Published on: June 20, 2015
The correlation between body mass index and intraocular pressure in children
Luciano Lira de Albuquerque1, Maria Isabel Lynch Gaete, José Natal Figueiroa
1Serviço de Oftalmologia Pediátrica, Instituto de Medicina Integral Professor Fernando Figueira, Recife, PE, Brazil.
Insights
This study found no significant link between child body mass index (BMI) and intraocular pressure (IOP). Further research is needed to understand the relationship between childhood obesity and eye pressure.
Area of Science:
- Ophthalmology
- Pediatrics
- Public Health
Background:
- Studies suggest a link between adult obesity and elevated intraocular pressure (IOP).
- The association between childhood obesity and IOP remains under-investigated.
- Understanding this relationship is crucial for pediatric eye health.
Purpose of the Study:
- To investigate the correlation between body mass index (BMI) and intraocular pressure (IOP) in children.
- To determine if childhood overweight/obesity is associated with higher IOP.
- To contribute to the understanding of risk factors for elevated IOP in pediatric populations.
Main Methods:
- A cohort of 96 Brazilian children was analyzed.
- Participants were categorized based on BMI into overweight/obese and normal weight groups.
- Intraocular pressure (IOP) was measured using Goldmann applanation tonometry and corrected for corneal thickness.
Main Results:
- No statistically significant difference in IOP was observed between overweight/obese children and their normal-weight peers.
- Mean IOP measurements, both corrected and uncorrected for corneal thickness, showed no significant variation.
- The calculated coefficient of correlation between BMI and IOP was not significant (r=0.070, p=0.496).
Conclusions:
- The study did not find a correlation between body mass index (BMI) and intraocular pressure (IOP) in the studied pediatric population.
- Current findings do not support an association between childhood obesity and elevated IOP.
- Further research with larger cohorts is recommended to definitively clarify the BMI-IOP relationship in children.
Purpose:
There is evidence from some studies that support an association between obesity in adults and higher intraocular pressure (IOP). However, this association has not been completely studied in children. Our aim is to evaluate the association between child body mass index (BMI) and IOP.
Methods:
Ninety-six children attending the Instituto de Medicina Integral Prof. Fernando Figueira (IMIP) in Brazil were studied. Thirty-three were overweight/obese with a mean BMI of 29.7 ± 5.2 and 63 with a mean BMI of 20.8 ± 3.3. IOP was measured using the Goldmann applanation tonometer and was corrected for corneal thickness. The coefficient of correlation between BMI and IOP was calculated.
Results:
There was no significant difference in the IOP of children with or without overweight/obesity. The mean IOP was 13.5 and 13.0 mmHg for the right eye and 13.1 and 12.9 mmHg for left eye, respectively (p=0.38 and p=0.71). The results remained the same after correction by pachymetry; 13.0 and 13.1 mmHg for the right eye and 12.4 and 12.9 mmHg for the left eye, respectively (p=0.88 and p=0.41). The coefficient of correlation between BMI and IOP was 0.070 (p=0.496).
Conclusion:
These results do not show a correlation between body mass index and IOP in children. Further studies are warranted to clarify the association between BMI and IOP in children.
Related Concept Videos
Increased Intracranial Pressure l: Introduction
Glaucoma: Overview
Obesity
Increased Intracranial Pressure ll: Pathophysiology
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...
Coefficient of Correlation
If you suspect a linear relationship between x and y, then r can measure how strong the linear relationship is.
What the VALUE of r tells us:
The value of r is always between –1 and +1: –1 ≤ r ≤ 1.
The size of the correlation r indicates the strength of the linear...
