Repeatability and comparability of a new swept-source optical coherence tomographer in optical biometry

Area of Science:

• Ophthalmology
• Medical Devices
• Biometry

Background:

• Accurate ocular biometry is crucial for refractive outcomes in cataract surgery.
• New devices require validation for precision and comparability with established methods.

Purpose of the Study:

• To assess the reproducibility of ocular biometric measurements using the Anterion swept-source OCT (SS-OCT).
• To compare the Anterion SS-OCT's measurements with those from the Lenstar LS900 optical low coherence reflectometry biometer.

Main Methods:

• An observational study included 45 cataract patients.
• Ocular biometric parameters (axial length, anterior chamber depth, etc.) were measured thrice with Anterion and once with Lenstar LS900.
• Statistical analyses included Pearson's R, ICC, and CCC to evaluate repeatability and comparability.

Main Results:

• Excellent repeatability (Pearson's R) was observed for axial length (0.987), central corneal thickness (0.983), and anterior chamber depth (0.942).
• No significant differences were found between repeated Anterion measurements.
• Excellent agreement (ICC, CCC) was noted for axial length, central corneal thickness, and anterior chamber depth.

Conclusions:

• Biometry using the Anterion SS-OCT is a reliable and reproducible procedure.
• The Anterion SS-OCT demonstrates comparability with the Lenstar LS900 for ocular biometry.