Cataract Diagnostics and Equipment Axial Length Acquisition Success Rates And Agreement Of Two Swept-Source Optical Biometers In Eyes With Dense Cataracts Sep 10, 2025 Paz Orts-Vila, MD, 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 ↑