Analysis of ocular biometry in Korean using swept-source optical coherence tomography

Area of Science:

• Ophthalmology
• Biometry
• Public Health

Background:

• Ocular biometric parameters are crucial for refractive error assessment and management.
• Understanding population-specific normative data is essential for accurate clinical interpretation.
• Previous studies have not comprehensively analyzed ocular biometry across age groups in the Korean population.

Purpose of the Study:

• To evaluate and compare ocular biometric parameters in Korean adults and children.
• To analyze variations based on sex, age, and axial length.
• To provide normative data for refractive management and myopia progression monitoring.

Main Methods:

• Utilized swept-source optical coherence tomography (SS-OCT; IOL Master 700) for data acquisition.
• Analyzed data from 6,760 eyes of 6,760 Korean subjects (5,091 adults, 1,669 children).
• Measured axial length (AL), keratometry (K), anterior chamber depth (ACD), lens thickness (LT), central corneal thickness (CCT), and white-to-white distance (WTW).

Main Results:

• Significant differences in all parameters between males and females were observed (P < 0.05).
• Males presented with longer AL, flatter K, deeper ACD, and thicker CCT.
• In children, AL growth slowed after age 11; in adults, age correlated significantly with LT and ACD.

Conclusions:

• Ocular biometry shows significant sex and age-related differences in the Korean population.
• Males generally exhibit larger ocular dimensions than females.
• Findings are vital for optimizing refractive management and monitoring myopia progression in clinical practice.