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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 Resources

Trending IOLs & Calculations Topics

Toric IOLs
IOL Calculations
Multifocal IOLs
IOL Selection
Light-Adjustable IOLs
Extended Depth of Focus IOLs

In-Depth IOL Calculation Instructional Courses

View these in-depth courses on IOLs & Calculations from the 2023 and 2022 ASCRS Annual Meetings.
(2023 ASCRS Annual Meeting courses available to physicians registrants only)

Session
IC-231 Latest in IOL Power Calculation
Giacomo Savini, MD; Kenneth Hoffer, MD, ABO 1:46:32 minutes
May 2023
Session
IC-101 IOL Power Club Course Optimized IOL Power Selection
Kenneth Hoffer, MD, ABO; Filomena Ribeiro, MD, FEBO, PhD; H. John Shammas, MD; Giacomo Savini, MD 1:21:12 minutes
May 2023
Session
IC-102 Best Practices for IOL Power Selection in 2023
Warren Hill, MD, FACS; Helga Sandoval, MD, MSc; Robin Vann, MD, ABO; Li Wang, MD, PhD 1:33:44 minutes
May 2023
Session
IC-319 Optimising Toric Outcomes
Graham Barrett, FRANZCO ; Tetsuro Oshika, MD, PhD; Ronald Yeoh, FRCSEd, FRCOphth 1:30:27 minutes
May 2023

Session
IC-320 Best Practices for IOL Power Selection in 2022
Li Wang, MD, PhD; Warren E. Hill, MD, FACS; Robin R. Vann, MD, ABO; Helga P. Sandoval, MD, MSc; Adi Abulafia, MD 1:30:35 minutes
April 2022
Session
IC-326 IOL Power Club Course: Optimized IOL Power Selection
Giacomo Savini, MD; Kenneth J. Hoffer, MD, ABO; H. John Shammas, MD; Jaime Aramberri, MD; Thomas Olsen, MD, PhD 1:39:32 minutes
April 2022
Session
IC-328 IOL Power Online & Everything Else
Kenneth J. Hoffer, MD, ABO; Giacomo Savini, MD 1:45:27 minutes
April 2022
Session
IC-402 Emerging Technologies to Improve IOL Power Calculation Accuracy
Seth M. Pantanelli, MD, MS; Mitchell P. Weikert, MD, ABO; Julie Schallhorn, MD; David L. Cooke, MD 1:43:30 minutes
April 2022

Light-Adjustable Lens Presentations

Presentation
My Favorite Treatment for Presbyopia at the Time of Cataract Surgery: LAL Customized Monovision Will Minimize the Disparity
Nicole R. Fram, MD, ABO 02:43 minutes
May 2023
Presentation
LAL for Patients Who Desire Presbyopia Correction
Neda Shamie, MD, ABO 09:14 minutes
May 2023
Presentation
What I'm Doing Differently This Year: More Lal's
John A. Hovanesian, MD, FACS, ABO 02:38 minutes
April 2022
Presentation
Knowing When to Offer Panoptix When to Offer LAL
Stephen G. Slade, MD, FACS 03:05 minutes
July 2021

Featured Presentation

Warren E. Hill, MD, FACS gives the keynote Lindstrom Lecture, "Improving IOL Power Calculation Accuracy...Are We There Yet?" in the Sunday General Session at the 2022 ASCRS Annual Meeting held in Washington, DC.

The Inaugural ASCRS Lindstrom Lecture acknowledges the 40+ years of immeasurable contributions to ASCRS by Richard Lindstrom, MD.

View the full ASCRS Sunday General Session
IOL Calculators

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.

2023 Annual Meeting

IOLs & Calculations Paper Sessions

Explore hundreds of the latest papers in IOL calculations & technology from the 2023 Annual Meeting. (Registrants only)

Session
SPS-103 Presbyopia Correcting IOLs- Extended Depth of Focus/Extended Range of Vision IOLs
57:23 minutes
May 2023
Session
SPS-106 Presbyopia Correcting IOLs II
1:31:20 minutes
May 2023
Session
SPS-110 Post-Refractive IOL Calculations
43:50 minutes
May 2023
Session
SPS-111 Cataract IOLs- Monofcal/Extended Depth of Focus II
1:26:03 minutes
May 2023
Session
SPS-118 Cataract IOLs- Monofcal/Extended Depth of Focus
1:35:03 minutes
May 2023
Session
SPS-120 Presbyopia Correcting IOLs
1:21:38 minutes
May 2023
Session
SPS-123 Preoperative Tests and IOL Power Calculations II
1:16:21 minutes
May 2023
Session
SPS-211 IOLs- Trifocal
1:11:09 minutes
May 2023
Session
SPS-217 Cataract IOLs- Small Aperture/Pinhole and Other
1:23:52 minutes
May 2023
Session
SPS-222 Preoperative Tests and IOL Power Calculations
1:14:04 minutes
May 2023
Session
SPS-224 Preoperative Tests and IOL Power Calculations III
1:30:32 minutes
May 2023
Session
SPS-303 IOL Design and Characteristics
1:02:34 minutes
May 2023

Extended Depth of Focus IOL Technology

Presentation
Mixing, Monovision and Mini-Monovision: With and without Edof – What Targets Do I Set?
Cathleen McCabe, MD 12:01 minutes
May 2023
Presentation
New Technology on the Horizon: IC-8
John A. Hovanesian, MD, FACS, ABO 02:38 minutes
April 2022
Presentation
New Technology on the Horizon: First in Class True Accommodating IOL
Elizabeth Yeu, MD 04:57 minutes
April 2022
Presentation
Small Aperture: Bright Future
Robert Edward T. Ang, MD 15:36 minutes
April 2022

2023 Annual Meeting

SYM-10 - Making the Uncomfortable Comfortable: Strategies for Managing Complex Cases and Advanced Technology IOLs Part I

View this session from this 2023 ASCRS Annual Meeting session. (Registrants only)

Presentation
Getting to Target: Maximizing IOL Power Calculations in 2023
Warren Hill, MD, FACS 13:27 minutes
May 2023
Presentation
Pre-Op Counseling: Steps to Educate before, during and after the Doctor Even Sees the Patient
John Berdahl, MD 09:06 minutes
May 2023
Presentation
Mixing, Monovision and Mini-Monovision: With and without Edof – What Targets Do I Set?
Cathleen McCabe, MD 12:01 minutes
May 2023
Presentation
Advanced Technology IOLs in Post-Lasik and Post-RK Eyes
Vance Thompson, MD 12:08 minutes
May 2023
Presentation
Where Does “Adjustability” Fit in?
Y. Ralph Chu, MD 10:14 minutes
May 2023
Presentation
Small Aperture IOLs
Elizabeth Yeu, MD 12:48 minutes
May 2023
Presentation
The Progression of “Mild” Armd or ERM – How Much Is Too Much?
Christina Weng, MD, MBA, ABO 09:20 minutes
May 2023
Presentation
Pharmacologic Approaches to Presbyopia
John Hovanesian, MD, FACS, ABO 11:29 minutes
May 2023
Presentation
Emerging IOL Technologies - Where Might We be in 5 Years?
Sumit Garg, MD, ABO 08:43 minutes
May 2023

Toric IOL Alignment Films

All ASCRS members may view these featured toric IOL films from the 40th ASCRS Film Festival at the 2022 ASCRS Annual Meeting.

Video
Film 79909: Noval Technique for Prevention of Head Tilt during Manual Pre Operative Corneal Reference Marking for Toric IOL- Baile's Head Aligner
Rahul Baile, MS, FCPS, DOMS 02:53 minutes
April 2022
Video
Film 81346: Topographer Coupled with Toric Marking App
Narendra Verma, DOMS 06:05 minutes
April 2022
Video
Film 82493: Fix That Axis! Swivel Haptic Anterior Capsular Fixation of Toric IOLs
Sri Ganesh, FRCS, MS, DNB; Supriya Sri Ganesh, MBBS, MS 07:49 minutes
April 2022
Video
Film 82726: Toric IOL Marking - Getting It Right !
Supriya Arora, MS; Tarun Arora, MD 07:54 minutes
April 2022
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