Vertex Conversion 4+

Alta Vista LLC

Designed for iPad

    • $1.99



Convert eyeglass prescription to contact lens prescription.

Vertex distance adjustment calculator to convert sphero-cylindrical eyeglass prescriptions to the corneal plane. Spherical Equivalent of eyeglass prescription at the cornea is also calculated. Use to convert eyeglass prescription to contact lens prescription. App has multiple vertex distances for calculation and will round to nearest eighth or quarter diopter.

What’s New

Version 1.5

updates to swift current version

App Privacy

The developer, Alta Vista LLC, 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

    Up to six family members can use this app with Family Sharing enabled.

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