Optical Calculator for ECPs

The best Optical Calculator on the App Store.

• Stock Lens Cutout

• Lens Thickness

• Vertex Compensation

• Rx Transpose

• Intermediate Rx

• Prism Compounding

• Contact Lens Rx

• Induced Prism

• Tilt & Wrap Compensation

• Crossed Cylinders

• Resolving Prism

• Spectacle Magnification

• Vertical Imbalance Compensation

• Power in Oblique Meridians

If you want another calculator, let us know and we will add it.

The app is easy to use and to the point.

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About Subscription:

• You may subscribe to our service for a free trial. This subscription auto-renews yearly at the specified price.

• This subscription provides you full access to all our current and future optical calculators.

• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period.

• The account will be charged for renewal within 24-hours prior to the end of the current period.

• Payment will be charged to your iTunes Account at confirmation of purchase.

• You may manage the subscription and auto-renewal may be turned off by going to the user's Account Settings after purchase.

• Any unused portion of a free trial period will be forfeited when you purchase the subscription.

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