The Hill-RBF Method 2.0 now available exclusively on all Lenstar devices

Hill-RBF 2.0 is based on a bigger dataset consisting of nearly 4x the amount of data compared to the previous version. The data was compiled by cataract surgeons from all over the world, thus it encompasses a huge range of human anatomy and IOL powers leading to highly accurate IOL predictions. In addition, the Hill-RBF was complemented with the well-established Abulafia-Koch algorithm for torical applications.

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Barret & Olsen Formulas

Measured lens thickness and two of the latest generation multivariable IOL formulas allow for premium IOL power prediction with the LENSTAR LS 900.

T-Cone Toric Platform

The optional t-cone complements LENSTAR LS 900's measurement pallet with true Placido topography of the central cornea and a powerful surgical planner using the Barrett toric calculator.

EyeSuite IOL Toric Planner

The optional IOL toric planner allows optimisation of the incision location and planning of the surgery on real eye images to reach advanced refractive results.

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The LENSTAR LS 900 is a remarkably easy to use all-in-one IOL power calculation tool that delivers exceptionally accurate axial length, anterior chamber depth and lens thickness by optical biometry. At the same time, its dual zone autokeratometry feature is precise and uniformly consistent. The Lenstar is an excellent choice for surgeons migrating towards torics and other premium IOLs where highly accurate outcomes are critical for success."

Warren E. Hill, MD, FACS
Mesa, Arizona


The LENSTAR LS 900 puts everything I need at my fingertips with one device. It’s the only biometer that has the Hill-RBF seamlessly integrated into its software. The accuracy of the built-in Barrett and Olsen IOL calculation formulas vastly surpasses the pre-millennium formulas used in other biometers. And its T-Cone topography permits rapid assessment of the relative regularity of the cornea and tear film, crucial for screening and managing premium IOL candidates.”

Michael E. Snyder, MD


The ease of use and accuracy of the LENSTAR LS 900 is amazing. It only takes one button push to get all of the measurements. Our accuracy with lens selection has always been fantastic. Now that we use the Hill-RBF calculation model, our accuracy has become even better.”

Dr. Edward Meier, MD, Apex Eye


From ASCRS 2018: Pearls for Improved Refractive Outcomes with Cataract Surgery

Videos from ASCRS 2017

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