OptoCharts - All eye tests

Shadi AboelNaga

Contains adsIn-app purchases

About this app

Introducing the world first android professional app for all eye tests.

For eye care specialists, convert your smart phone or tablet or a LED screen to a 4,000$ worth visual acuity examination device. Use it in your clinic, home visits or anywhere you like.
Easy to set for screen mirroring on a LED screen or direct installment on your smart TV for bigger view at your clinic.
Use another smart phone as a smart remote controller for the tablet or smart TV you use as a projector.

The chart size is calibrated at any distance or screen size. It's calculated dynamically with the accurate optical equation along with the related medical aspects to introduce to you the most accurate optometry chart on an android device.

You get some vision charts (including Landlot-C chart) and other tests (including color vision plates) completely for free for lifetime.
And you can purchase a Pro licence inside the app to have all these charts in one place:

* Landlot-C chart.
* Landlot-C chart without the oblique (45°) angles.
* Tumbling E chart.
* Alphabetic chart.
* Numbers chart.
* Pediatric chart.
* Illiterate chart.
* Customized regional alphabet charts.

& Crowding effect/phenomenon applied to any chart.
& Units: Metric (6/6), Feet (20/20), Decimal (1.0) and LogMAR.
& Modes: Complete rows & columns, one row, one column, single sign.

* Duo-chrome test.
* Red/Green filter applied to any chart to make a custom Duochrome test.

* Worth 4 dot test.
* Schober test
* Amsler grid with 4 different color/background combinations.
* Color vision test (Ishihara charts).
* Contrast sensitivity test applied to any chart with the selected visual acuity size. Units: CS log & percentage.
* Optokinetic drum with the ability to change speed or width.
* Cross-Cylinder test chart.
* Astigmatism clock.
* Fixation target.
* Fixation dot.
* Children fixation targets.
* Cross Grid.

* Videos gallery & in-app player for playing patient education or children fixation videos.
& In-app images gallery with enhanced image viewer.

The app behavior is fully customized according to your practice including default chart, default acuity row, default row step (0.1 Decimal or 0.1 LogMar), default signs (optotypes) distribution over the test area, default spacing between the optotypes, etc...

All these features are available for a trial period enough to try them in your daily practice for days after which you'll have to either purchase the full licence with a relatively small fee or continue using the app with limited features.

And it won't get better without your feedback. So, you're welcome to send us your feedback, suggestions, bugs reports.

Ratings and reviews

Great app. Really the only app that contains almost all the tests I need in my practice. And changing inbetween them is easy and smooth. Also, the remote control function is so helpful. The only problem I found is that it takes time to get the way to change and control the chart. You really need to add some instructions or help windows to show the users every test in included.

It wants your email address. There is a loud annoying ping every time you swipe to different screen. The chart defaults to logMAR, which is fine for me but might not suit everyone. No AMSLER grid or colour photos (not obvious to me). Very little thought has gone in to designing the app, an opportunity wasted. I think the positive reviews were probably posted by friends of the developer.

Wooow, it's very easy and fast application. I used before many charts and application but optoCharts is the best. I recommend it to my colleagues of course

What's new

Improved faster optotype drawing processor
New tests in versions 5.0+:
* Cobalt blue screen
* Arabic & Hindi alphabet letters charts.
* Fan & Block astigmatism
* Schober test and Vertical/Horizontal alignment for measuring squint angle. All include fixed charts & automated tests to measure the angle accurately.
* For babies: Preferential looking test & LEA grating visual acuity.