Astigmatism | ASCRS

Important Alert

2021 ASCRS Annual Meeting Announcement

Registration is Open

Registration and Housing for the 2021 ASCRS and ASOA Annual Meetings is Open!

Register now to attend the 2021 ASCRS Annual Meeting, featuring:
- Essential education and the latest in clinical techniques
- Inspiring speakers, expert faculty, and distinguished lecturers
- An Exhibit Hall with the latest industry trends from more than 200 companies
- Unparalleled opportunities to connect with friends, colleagues, and mentors
- ASOA practice management education for all members of the practice

The Early Bird Registration deadline is April 30 for the meeting being held in person July 23–27 in Las Vegas, Nevada!
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Clinical Education

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 resources

popular astigmatism topics

Toric IOLs
Arcuate Incisions
IOL Calculations
Limbal Relaxing Incisions
IOL Selection

Available On Demand Now

Astigmatism 2021: The Quest for Refractive Perfection

This program took place live on March 3, 2021 as is now available as an online CME activity through ASCRS CME 24/7.

Earn 1.0 AMA PRA Category 1 Credit™ by participating in this online CME activity.

Would you like to achieve the best possible refractive outcomes by optimizing your astigmatism management during cataract surgery? This program covers how preoperative planning, intraoperative alignment, and postoperative enhancements will help you nail your astigmatic targets.

Begin Online CME Activity Now
Learn More About This Activity

Latest Astigmatism Presentations

Presentation
How Do I Analyze Astigmatism Using Double-Angle Polar Plots?
Douglas D. Koch, MD, ABO 07:03 minutes
May 2020
Presentation
What Is the Best Way to Measure Corneal Astigmatism?
Warren E. Hill, MD 07:29 minutes
May 2019
Presentation
Astigmatism: Where Is It and How to Measure It for Corneal and Lenticular Refractive Surgery
Douglas D. Koch, MD 07:28 minutes
May 2019
Presentation
What, When, and Why: How Much Astigmatism to Treat and How Much to Leave
Mitchell P. Weikert, MD 07:24 minutes
May 2019

Featured Video

How I Treat Astigmatism at the Time of Cataract Surgery

Presented by Denise M. Visco, MD
 There 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

Toric IOLs

Browse the latest ASCRS education on toric IOLs.

Presentation
The Toric IOL
Warren E. Hill, MD, FACS 16:52 minutes
May 2020
Presentation
Toric IOL with Intraocular Pinhole: A Paradigm Shift in the Treatment of Keratoconus
Bruno C. Trindade, MD, PhD 07:18 minutes
May 2020
Presentation
When Should I Make Corneal Relaxing Incisions and When Should I Implant a Toric IOL?
Neal H. Shorstein, MD 08:06 minutes
May 2019
Presentation
Tumultous Toric
Claudia E. Perez-Straziota, MD 14:35 minutes
May 2019
Presentation
Toric IOLs: Picking Them and Placing Them
Adi Abulafia, MD 12:34 minutes
May 2019
Presentation
What, When, and Why: How Much Astigmatism to Treat and How Much to Leave
Mitchell P. Weikert, MD 07:24 minutes
May 2019
Presentation
Toric IOLs Are All You Need
Steven J. Dell, MD 04:29 minutes
May 2019

ASCRS Instructional Courses

Astigmatism Courses

View a selection of 1.5-hour instructional courses from the 2019 ASCRS Annual Meeting

Presentation
IC-105: Astigmatism Management at the Time of Cataract Surgery
Instructor: Ashu Agarwal, MD Co-Instructors: Sudhank Bharti, MS; Mahipal S. Sachdev, MD; Saurabh Choudhry, MD 1:29:40 minutes
May 2019
Presentation
IC-228: Optimizing Toric IOL Outcomes
Instructor: Adi Abulafia, MD Co-Instructors: Warren E. Hill, MD; Douglas D. Koch, MD; Ehud I. Assia, MD; Graham D. Barrett, FRANZCO; Guy Kleinmann, MD 1:31:55 minutes
May 2019
Presentation
IC-117: Managing Astigmatism in Cataract Surgery
Instructor: Manuel Nicoli, MD Co-Instructors: Kevin M. Miller, MD; Mitchell P. Weikert, MD; Bruna V. Ventura, MD, PhD; Sebastian Onnis, MD; Virgilio Centurión, MD 1:25:23 minutes
May 2019
Presentation
IC-210: Advanced Astigmatism Management to Achieve the Best Refractive Cataract Surgery Outcomes
Instructors: Matteo Piovella, MD Co-Instructors: Roberto Zaldívar Sr., MD; Roger Zaldivar, MD; Barbara Kusa, MD; Donald N. Serafano, MD; David F. Chang, MD 1:29:16 minutes
May 2019
Presentation
IC-401: Correction of Astigmatism Using Toric IOLs, LRIs, and Refractive Laser Surgery
Instructors: Noel A Alpins, MD; George Stamatelatos, BScOptom 1:32:49 minutes
May 2019
Presentation
IC-303: Optimizing Toric IOL Outcomes
Instructor: Ronald Yeoh, MD Co-Instructor: Tetsuro Oshika, MD, PhD; Graham D. Barrett, FRANZCO 1:26:25 minutes
May 2019
Presentation
IC-419: Optimizing Toric IOLs: Management of Corneal Astigmatism in Cataract Surgery
Instructor: Arulmozhi Varman, MD Co-Instructors: Nivean Madhivanan, MS; Atheek Shaik, MD; Ramesh Dorairajan, MD 55:44 minutes
May 2019
Online Tools & Calculators

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. 

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