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Purpose: To compare the ocular biometry and postoperative refractive outcomes using two devices; the swept-source optical coherence tomography biometer (Argos) versus the partial coherence interferometer (IOL Master 500, Carl Zeiss Meditec AG, Jena, Germany). Methods: The axial length (AL), anterior chamber depth (ACD) and keratometry (K) in 221 cataract eyes were measured with Argos and IOL Master 500. One month after surgery, refraction of the respective eyes was conducted and the mean absolute error (MAE) calculated for analysis of the refractive outcomes. Results: Measurement was not possible in 13 eyes with the IOL Master 500 but was possible with Argos. Measurement was not possible in one eye with either biometer. Agreement in measured ocular biometry between the two devices by intraclass correlation coefficient (ICC) and Bland-Altman plot (ICC AXL = 0.999, ACD = 0.975, K = 0.978) was excellent. The AL and ACD measured with Argos were significantly longer than measured with IOL Master 500 (p = 0.005, p = 0.000). The MAE showed no significant difference between the Argos and IOL Master 500 (p = 0.087). Conclusions: The measurement of ocular biometry was better in Argos than in IOL Master 500. The accuracy of the intraocular lens power calculations of Argos was clinically acceptable and compatible with a conventional device. J Korean Ophthalmol Soc 2020;61(8):905-910

Comparison of Clinical Outcomes between Swept-source Optical Coherence Tomography Biometer and Partial Coherence Interferometer