Screening for retinal vessel caliber and its association with metabolic syndrome in Japanese adults
Koko Saito1, Yukio Nagao, Hidetoshi Yamashita
1Department of Ophthalmology, Shinoda General Hospital, Yamagata, Japan.
Insights
Retinal vessel caliber changes are linked to metabolic syndrome in Japanese adults. Narrower arteries and wider veins indicate higher metabolic syndrome prevalence, suggesting potential for noninvasive vascular health screening.
Area of Science:
- Ophthalmology
- Cardiovascular Health
- Metabolic Disorders
Background:
- Retinal microvasculature offers in vivo assessment of microvascular health.
- Investigated the association between retinal vessel caliber and metabolic syndrome in Japanese adults during a health screening.
Purpose of the Study:
- To determine if retinal vessel caliber is associated with metabolic syndrome in Japanese adults.
- To assess the feasibility of retinal vessel caliber measurements in health screening programs.
Main Methods:
- Examined 1,003 Japanese adults using digital fundus images.
- Measured retinal vessel caliber with validated, semiautomated software.
- Defined metabolic syndrome using the 2009 Joint Interim Statement criteria.
- Analyzed associations using multiple logistic regression models.
Main Results:
- Prevalence of metabolic syndrome was 29.9%.
- Narrower retinal arterial diameters correlated with increased waist circumference, elevated triglycerides, and higher blood pressure.
- Wider retinal venular diameters were associated with increased waist circumference.
- Narrower arteries (OR=2.15) and wider veins (OR=1.53) were linked to higher metabolic syndrome prevalence.
Conclusions:
- Cross-sectional associations exist between retinal vessel caliber and metabolic syndrome components.
- Retinal vessel caliber assessment is feasible and timely in health screening.
- Longitudinal studies are needed to confirm utility for noninvasive vascular health evaluation in metabolic syndrome and cardiovascular disease screening.
Background:
Retinal microvasculature provides a direct means to assess microvascular health in vivo. We examined whether retinal vessel caliber is associated with the presence of metabolic syndrome in Japanese adults in a health screening program.
Methods:
We examined 1,003 Japanese adults through the health screening program conducted at the Shinoda General Hospital. Retinal vessel caliber was measured from digital fundus images using validated, semiautomated computer-assisted software. Metabolic syndrome was defined according to the definition proposed by the Joint Interim Statement in 2009. Cross-sectional associations between retinal vascular caliber and metabolic syndrome or its individual components were determined as odds ratios (ORs) using multiple logistic regression models.
Results:
The overall prevalence of metabolic syndrome in the study sample was 29.9%. Persons with increased waist circumference and elevated triglycerides and blood pressure had significantly narrower retinal arterial diameters. Persons with increased waist circumference also had wider retinal venular diameters. Narrower retinal arterial diameters and wider retinal venular diameters were associated with a higher prevalence of metabolic syndrome (OR per -1 standard deviation (SD) change in arteriolar caliber=2.15, 95% confidence interval (CI) 1.45-3.18; OR per +1 SD change in venular caliber=1.53, 95% CI 1.04-2.26).
Conclusions:
We observed cross-sectional associations between retinal vessel caliber changes and metabolic syndrome and its components. We demonstrated that retinal vessel caliber assessments are feasible in health screening programs in a timely manner. Further longitudinal studies are warranted to determine whether retinal vessel caliber measurements can be used as noninvasive assessment to evaluate vascular health related to metabolic syndrome and cardiovascular diseases in health screening program.
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