Leave a Review Lens Calc
Good
Useful easy to use found simple and good as a back up guideJohann12
Awesome app
Very very helpful app. The lens thickness calculator is very accurate and particularly helpful. Well worth the money!0ptician
$1.99
Details about Lens Calc
- Released
- Updated
- iOS Version
- Age Rating
- Size
- Devices
- Languages
Features
Developer of Lens Calc
- Versions
- Price History
- Description
- FAQ
Version History of Lens Calc
2.3
June 4, 2022
Version 2.3: Oh dear. Version 2.1 had more bugs in it than an entomologist's office. Sorry about that. This version fixes the inability to even use the Effective Diameter tab. For 2.2: Fixed bugs on the Vertex Distance page which kept flipping around the vertex of Rx and specs values. Also fixed the precision value not being remembered. Also the plus cyl form switch on the power entry screen was messing up the cyl power. For 2.1: Fixed bugs on lens thickness page which always showed "edge thickness" even for a minus lens, and only allowed 1 decimal point for the refractive index. Also updated to work well with iOS 15. If you want new features or calculations, don't hesitate to contact me!
More2.2
May 29, 2022
For 2.2: Fixed bugs on the Vertex Distance page which kept flipping around the vertex of Rx and specs values. Also fixed the precision value not being remembered. Also the plus cyl form switch on the power entry screen was messing up the cyl power. For 2.1: Fixed bugs on lens thickness page which always showed "edge thickness" even for a minus lens, and only allowed 1 decimal point for the refractive index. Also updated to work well with iOS 15. If you want new features or calculations, don't hesitate to contact me!
More2.1
May 26, 2022
Fixed bugs on lens thickness page which always showed "edge thickness" even for a minus lens, and only allowed 1 decimal point for the refractive index. Also updated to work well with iOS 15. If you want new features, don't hesitate to contact me!
More2.0
June 11, 2020
- Added support for iOS 13 including Dark Mode. - Updated some icons.
More1.52
November 7, 2014
- Fix for crash on iOS 7 - Fix for number conversion error on non-English locales. Also from 1.51: - Updated for iPhone 6 and 6 Plus screen sizes. - New orange and purple colour scheme! Pretty!
More1.51
October 8, 2014
- Updated for iPhone 6 and 6 Plus screen sizes. - New orange and purple colour scheme! Pretty!
1.5
August 20, 2014
Updated for iOS 7, just in time for iOS 8...
1.4
December 21, 2010
- Added precision option to vertex distance calculations - Fixed script entry display on iPhone 4
More1.3
September 8, 2010
- Fixes bug in multifocal markup screen on iPhone 4
1.2
June 30, 2010
- Support for OS 4.0 - Bug fixes - Added lens thickness calculation - Added multifocal markup checker Lens thickness calculation uses the approximate sag method to determine centre or edge thickness of lenses. Please note that this gives an indicative value only, and should not be taken as accurate. The multifocal markup allows you to measure the heights of a multifocal once its dotted up.
MorePrice History of Lens Calc
Description of Lens Calc
LensCalc: The six most important calculations for all optical retail assistants, optical dispensers or dispensing optician. Oh, and optometrists might benefit too. LensCalc includes Vertex Distance, Effective Diameter, Lensmeter Helper, Transposition, Lens Thickness Estimation and Induced Prism, in a quick & easy to use format. It also includes a progressive lens markup helper!
Vertex Distance: Enter the lens power & two vertex distances. LensCalc will give you the new power required, and tell you if the difference is significant.
Effective Diameter: Enter the Frame PD, Widest Diameter & Patient's PD. LensCalc tells you the required blank lens diameter.
Vertometer / Lensmeter Helper: Enter the two powers and the axis of the second power. LensCalc gives you the proper minus cyl form. Because sometimes those plusses and minuses are just a bit too confusing!
Transposition: Enter the lens power in plus cyl form, and LensCalc will give you the minus cyl form. Useful when you've got to deal with those dinosaur Rxs. Or, if you are a dinosaur, convert those new-fangled minus cyl prescriptions into that old favourite, plus cyls.
Induced Prism: Enter the power, decentration and direction of decentration. LensCalc tells you how much prism and the base direction. It'll also tell you the effective power of the lens in that direction, to aid with dispensing advice.
Lens Thickness: Enter power, centre/edge thickness, lens diameter and refractive index. LensCalc tells you the resulting edge or centre thickness.
So, they're all there: the six most common calculations, and designed for speed and ease of use. What an excellent idea.
Multifocal markup: Place your marked-up lens on the iPhone screen, drag the top, bottom & centre markers to the appropriate place and LensCalc tells you the optical centre height, the frame depth and the datum measurement. Use it when fitting or when checking jobs!
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Lens Calc: FAQ
Does Lens Calc offer an iPad version?
Lens Calc is not iPad-compatible.
Who released the Lens Calc app?
Rob McQualter is the developer of the Lens Calc app.
What is the lowest iOS version that Lens Calc can run on?
Lens Calc currently supports iOS 12.0 or later.
How does the app rank among users?
The Lens Calc app has received no user ratings yet.
What is the primary genre of the Lens Calc app?
The Primary Genre Of The Lens Calc App Is Medical.
What is the recent version of the Lens Calc app?
2.3 is the newly released Lens Calc version.
What date was the latest Lens Calc update?
The most recent update for Lens Calc was released on October 5, 2024.
What was the Lens Calc release date?
The release date of the app was on February 5, 2023.
What is the content advisory rating for Lens Calc?
Suitable for children aged 4 and up, contains no objectionable material.
What languages does Lens Calc support?
You can use the Lens Calc app in American English.
Is Lens Calc available in Apple Arcade's lineup?
No, Lens Calc is not available on Apple Arcade.
Are there in-app purchases available in Lens Calc?
No, Lens Calc does not offer in-app purchases.
Does Lens Calc support Apple Vision Pro compatibility?
No, Lens Calc does not support compatibility with Apple Vision Pro.
Are ads featured prominently in Lens Calc?
No, ads are not featured prominently in Lens Calc.
Screenshots of Lens Calc
