Clinical comparison of biometry using the non-contact optical low coherence reflectometer (Lenstar LS 900) and contact ultrasound biometer (Tomey AL-3000) in cataract eyes

Intraobserver and interobserver repeatability of ocular components measurement in cataract eyes using a new optical low coherence reflectometer

“…We could find no data on interobserver repeatability of AXIS measured with PCLI technique searching the Medline database to compare it to our results. When compared to the contact ultrasound biometer in cataract eyes, the Lenstar demonstrated higher reproducibility with regard to AL, CCT and ACD, whereas no significant difference in repeat accuracy was found for LT [11].…”

Scheimpflug–Placido topographer and optical low-coherence reflectometry biometer: Repeatability and agreement

“…Salouti et al 17 found an acceptable level of agreement in K and ACD measurements between the Lenstar device, IOLMaster device, and A-scan contact US. Tappeiner et al 18 also report good agreement between CCT and ACD measurements with the Lenstar device and contact US.…”

Comparison of central corneal thickness using optical low-coherence reflectometry and spectral-domain optical coherence tomography

“…However, other authors have compared the Lenstar LS 900 and US pachymetry devices. Tappeiner et al 18 report a mean CCT overestimation of 3.6 mm by the Lenstar LS 900 device in patients with cataract; however, Rohrer et al 11 found a mean underestimation of 0.2 mm by the Lenstar LS 900 device when they evaluated cataractous, pseudophakic, aphakic, silicone oil-filled, and healthy eyes. Another limitation was that although the CCT measurement performed using the Lenstar LS 900 device was determined by patient fixation and analyzed automatically, the Cirrus HD-OCT instrument only provides pachymetry data using a caliper tool.…”

“…Lenstar LS 900 intrasession, 11,15,16 intersession, 16 and interobserver 17 reliability for CCT measurements has been studied recently in cataractous and healthy eyes, and its interchangeability with US, 11,18 Pentacam (Oculus Optikger€ ate GmbH), 19 and Visante OCT (Carl Zeiss Meditec AG) 15,20 has also been reported. However, to our knowledge, no study has assessed Lenstar LS 900 CCT measurement intraobserver reliability in a diverse group of individuals with different anomalies who presented to a general ophthalmology outpatient clinic.…”