Cataract Diagnostics and Equipment Precision, Agreement, And Accuracy Of Argos® And Eyestar 900^ Swept-Source Optical Coherence Tomography Biometers In Eyes Undergoing Cataract Surgery Sep 11, 2025 Marc Biarnés, PhD Related Publications SS-OCT Biometers Using the SOS versus Mean Group Refractive Index to Measure Axial Length Cataract Diagnostics and Equipment Today’s SS-OCT Biometers employ two methods to measure the axial length: Sum-of Segments using individual refractive indices or a Mean Group Refractive Index Learn More ↑