Bitoric / High Astigmatism

Education by Lens Type


Spherical and Toric GP Lens Design, Fitting, and Problem-Solving: Dr. Ed Bennett (June 2022)
Management of the Irregular Cornea: Dr. Karen DeLoss (October 2019)
GP Toric Lens Design and Fitting: Dr. Tom Quinn (March 2018)
GP Contact Lens Case Grand Rounds: Dr. Ed Bennett (January 2015)
Bitoric GP Lens Design and Fitting: Dr. Ed Bennett (December 2014)
Contact Lens Management of the Irregular Cornea: Case Grand Rounds: Mr. Michael Ward (June 2014)
Custom Soft Lens Applications for the High Astigmat: Dr. Stephanie Woo (February 2014)
Correcting Astigmatism with RGPs: Dr. Clarke Newman (November 2011)

GP Toric and Spherical Lens Calculator

Plug in the spectacle Rx and keratometry to get instant calculations of lens parameters.

Mandell-Moore Bitoric Lens Calculator

Responsive bitoric lens calculator.

Mandell-Moore Guide for Empirical Bitoric Design

The Guide includes a printable blank form, instructions and sample form.

Newman GP Toric Guide

This modification of the Mandell-Moore Guide is used as an empirical design GP toric calculator and complements both the Mandell-Moore and GPLI calculators also available.

Grand Rounds Troubleshooting Guide

Assists in troubleshooting spherical, multifocal, high astigmatism, KC, irregular cornea, post-surgical and corneal reshaping fits.

Contact Lens Clinical Pocket Guide

Helpful for fitting or evaluating patients; view as a smart phone-ready PDF or order a printed copy.

GP Lens Management Guide

Provides management options for common GP-related problems or conditions for spherical, highly astigmatic, presbyopic and keratoconic patients.

Vertex and Diopters-to-Base-Curve Conversion Charts

A digital version of the useful charts that appear in the Contact Lens Clinical Pocket Guide.