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KMID : 0360220140550040548
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Journal of the Korean Ophthalmological Society
2014 Volume.55 No. 4 p.548 ~ p.554
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Analysis of Factors Associated with Retinal Vascular Caliber in Normal Korean Subjects
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Im Jong-Chan
Shin Jae-Pil
Kim In-Taek
Park Dong-Ho
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Abstract
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Purpose: To measure the diameter of the retinal arterial and venous caliber of normal Korean subjects and evaluate the factors affecting these diameters.
Methods: Fundus photography was performed on 152 normal Korean subjects. Central retinal artery equivalent (CRAE) and central retinal vein equivalent (CRVE) were measured with a computer-based program (IVAN), and were used to investigate the relationship between the diameter and factors including age, gender, hypertension, diabetes, and smoking.
Results: Among the study subjects, the CRVE was 209.33 ± 12.40 μm and the CRAE was 149.70 ± 9.01 μm. The CRVE and CRAE decreased with increasing age in all study subjects (both p < 0.001). There were significant gender differences in the CRVE and CRAE (p = 0.002, p = 0.042, respectively). After adjusting for age and gender, the hypertension group showed smaller CRVE and CRAE than the non-hypertension group (p = 0.038, p = 0.032, respectively). Smoking and diabetes were not significant factors affecting the CRAE and CRVE (both p > 0.05).
Conclusions: In our study group, retinal vascular caliber of normal Korean subjects decreased with aging. Retinal vascular caliber was affected by gender and hypertension, but not by smoking and diabetes.
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KEYWORD
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Central retinal artery equivalent, Central retinal vein equivalent, Retinal vascular caliber, Retinal vessel diameter
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