# Vertex Conversion

> Vertex Conversion (iPhone/iPad app by Alta Vista LLC.)

- Source: https://appshunter.io/ios/app/vertex-conversion/id957228139 (this page in markdown: same URL + `.md`)
- Developer: [Alta Vista LLC](https://appshunter.io/developer/954937423)
- Category: Medical, Health & Fitness
- Price: $1.99
- Age rating: 4+
- Requires: iOS 12.0 · 8 MB
- Languages: English
- Released: 2015-01-28
- Data updated: 2025-01-09
- User reviews in markdown: https://appshunter.io/ios/app/vertex-conversion/id957228139/reviews.md

## What is Vertex Conversion?

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.


## Version history (last 2 releases)

### 1.5 — 2022-01-25

updates to swift current version

### 1.0 — 2015-01-26

This app has been updated by Apple to display the Apple Watch app icon.

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## More apps by Alta Vista LLC

- [Transpose Eyeglass Prescription](https://appshunter.io/ios/app/transpose-eyeglass-prescription/id954937424)
- [Crossed Cylinder Calculator](https://appshunter.io/ios/app/crossed-cylinder-calculator/id963247457)
- [ICD-10 Reference for Optometry](https://appshunter.io/ios/app/icd/id1028600368)

All apps by Alta Vista LLC: https://appshunter.io/developer/954937423

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-01-09.*