Comparison of ocular biometric measurements between a new swept-source optical coherence tomography and a common optical low coherence reflectometry

Rongrong Gao, Hao Chen, Giacomo Savini, Yaxin Miao, Xiaorui Wang, Jing Yang, Weiqi Zhao, Qinmei Wang, Jinhai Huang

Research output: Contribution to journalArticlepeer-review

Abstract

The purpose of the current study was to compare the measurements between a new optical biometer based on swept-source optical coherence tomography (SS-OCT), the OA-2000 (Tomey, Japan), and an optical biometer based on optical low coherence reflectometry (OLCR), the Lenstar (Haag-Streit, Switzerland). Ninety-nine eyes of 99 healthy subjects were included. The axial length (AL), central corneal thickness (CCT), anterior chamber depth (ACD), aqueous depth (AD), lens thickness (LT), keratometry (K) readings, including flat K (Kf), steep K (Ks), mean K (Km), astigmatism vectors J0, J45 at diameters of 2.5 and 3.0 mm, and white-To-white diameter (WTW) were measured three times each using both biometer in normal eyes by random sequence. Bland-Altman analysis showed good agreement between the SS-OCT and OLCR devices for AL, AD, ACD, LT, with narrow 95% LoA (â '0.05 to 0.07 mm, â '0.09 to 0.10 mm, â '0.10 to 0.09 mm, and â '0.06 to 0.22 mm, respectively), and the P values of ACD were both >0.05. The CCT, Kf, Ks, Km, J0, J45 and WTW values provided by the OA-2000 were in good agreement with the Lenstar, and statistically significant differences were detected for some of them but not clinical differences. The agreement was excellent especially for AL.

Original languageEnglish
Article number2484
JournalScientific Reports
Volume7
Issue number1
DOIs
Publication statusPublished - May 30 2017

ASJC Scopus subject areas

  • General

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