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.
Astigmatism Resources
Astigmatism Clinical Education
Explore the latest in surgical and non-surgical treatment of astigmatism by selecting popular terms to the right, or click below to browse all ASCRS astigmatism educational resources.
Browse all astigmatism resourcespopular astigmatism topics
Latest Astigmatism Presentations
Featured Video
How I Treat Astigmatism at the Time of Cataract Surgery
Presented by Denise M. Visco, MDThere are five foundational steps in treating astigmatism at the time of cataract surgery: Educate, Measure, Treat, Track, and Fix. By carefully refining each step surgeons can improve results, decrease enhancements, build their confidence and grow their refractive practice.
Stay Up-to-Date on Toric IOLs
Browse the latest ASCRS education on toric IOLs.
ASCRS Instructional Courses
View a selection of 1.5-hour instructional courses from the 2019 ASCRS Annual Meeting
Astigmatism Double Angle Plot Tool
Rethinking astigmatism analysis for intraocular lens-based surgery. Click to read the JCRS article about this tool, view instructions for the tool, and download the tool.
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.
Toric Results Analyzer
The Toric Results Analyzer was developed by John Berdahl MD and David Hardten MD to help determine if a previously placed Toric IOL is ideally aligned.