저간섭성반사계와 부분결합간섭계를 이용한 안구생체계측과 백내장 수술 후 굴절력 예측의 비교

초록

Purpose: To compare axial length, anterior chamber depth, and keratometric measurements of an optical low-coherence reflectometry device with those of other ocular biometry devices and evaluate the accuracy of predicting postoperative refraction. Methods: A total of 32 eyes in 32 patients who received cataract surgery were included in the present study. The axial length, anterior chamber depth, and keratometry were measured by optical low-coherence reflectometry (Lenstar LS900®), partial coherence interferometry (IOL master®), and ultrasound. The SRK/T formula was used to calculate IOL power, and predictive error that subtracts predictive refraction from postoperative refraction was compared among ocular biometry devices. Results: Axial length, anterior chamber depth, and keratometry had a strong correlation and demonstrated no statistically significant differences between Lenstar LS900® and other devices. The Bland–Altman plots showed a high degree of agreement between Lenstar LS900® and other devices. The mean absolute prediction errors in Lenstar LS900® and IOL master® were not significantly different. Conclusions: The ocular biometric measurements and prediction of postoperative refraction using Lenstar LS900® were as accurate as IOL master® and ultrasound.

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