Important Alert
2021 ASCRS Annual Meeting: Important announcement
Registration is Open
Registration and Housing for the 2021 ASCRS ASOA Annual Meeting is Open!
The ASCRS ASOA 2021 Annual Meeting is the largest U.S. event dedicated to the needs of anterior segment surgeons. Registration for the meeting – being held July 23-27, 2021 at the Mandalay Bay Convention Center in Las Vegas, Nevada – is now open.
IOLs & Calculations Resources
IOLs & Calculations Education
Explore the latest in IOLs and IOL calculations by selecting popular topics to the right, or click below to browse across all ASCRS resources on IOLs and IOL calculations.
Browse all IOL & Calculations ResourcesTrending IOLs & Calculations Topics
In-Depth Instructional Courses
View these in-depth courses on IOLs & Calculations from the 2019 ASCRS Annual Meeting.
SYM-107 Nailing the Best IOL Refractive Outcomes - Let the Experts Update You
Browse videos from this 2019 Annual Meeting session.
Barrett Toric Calculator
This calculator is intended to be used in conjunction with a comprehensive ophthalmic examination and the appropriate diagnostic tests and measurements necessary for cataract surgery candidates being considered for a Toric intraocular lens.
Hill-RBF Calculator
The Hill-RBF Calculator is an advanced, self-validating method for IOL power selection employing pattern recognition and sophisticated data interpolation. It has been optimized for use with the Haag-Streit LENSTAR, using optical biometry for all axial measurements and high density autokeratometry.
Post-Refractive IOL Calculator
This calculator facilitates IOL power calculation in eyes that have undergone LASIK/PRK/RK. The IOL Calculator is meant to serve as an adjunct tool to assist physicians in selecting the appropriate IOL for a particular patient.