iPhone Screenshots


LRI CALC is an iPhone application to assist you in pre-operative planning for Limbal Relaxing Incisions (LRI) to correct the astigmatism.

The usage is very simple: just press the 'PATIENT' button and provide the requested patient data, choose the nomogram and press ’DONE’ button.

The calculator will suggest the incisions as the nomogram chosen in attempt to correct as much as possible without over correct the astigmatism.

***** This application is for reference and simulation only *****

What’s New

Version 3.0.2

Resolved the problem of not returning to the main screen on some devices.

Ratings and Reviews

4.5 out of 5
2 Ratings

2 Ratings

DiveMD ,


They need to fix the white font on white background issue on the induce astigmatism and incision location sections.

Minas-Petterson ,


Very easy to use!
With the most common nomograms, but with other names.

App Privacy

The developer, Evandro Souza, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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