Cataract Diagnostics and Equipment Acquisition Success Rates and Agreement of Four Optical Biometers in and One Ultrasound Biometer 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 ↑