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.

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.

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.

The ocular biometric measurements and prediction of postoperative refraction using Lenstar LS900® were as accurate as IOL master® and ultrasound.