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OKN Strips

By Thomas Alvarez

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Top selling diagnostic and therapeutic app for iPad, iPhone and iPod Touch!

OKN Strips can be used to elicit Optokinetic Nystagmus (OKN) for evaluation of neurological, otological or opthalmological disorders, includes a Red Desaturation mode and now has an Amsler grid for additional eye testing.

OKN Strips:
Tap the screen to cycle through speeds of the moving strips. Tap and hold to make a toolbar appear that allows you to toggle the color of the strips between Red and Black. Pinch or Zoom with two fingers to change the width of the strips.

Red Desaturation:
Use the colored circle to perform a red desaturation test.

Amsler Grid:
Use the Amsler grid to perform eye tests. The buttons on the bottom change color combinations of the grid.

Ranked 25 in Top 200 US iPad Medical Apps.
Ranked 6 in Top 200 Japan iPad Medical Apps.
Ranked 33 in Top 200 Thailand iPad Medical Apps.

What's New in Version 1.3

Update for iOS 7

Amsler Grid now supports Landscape orientation


iPhone Screenshot 1
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iPad Screenshot 1
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Customer Reviews


Good app.. The only complain ill make is after opening the OKN strips if i need to go back to the menu containing amsler grid , i can only do so after i quit and close the application and open it again.. But its a minor complaint and i like the app.

Good app

Red-Black inversion doesn't work on grid test but otherwise a good app. You can get back to main menu from optokinetic by holding down on screen for two seconds and the back menu appears.


It'a very good but I think that a black and white strips option on OKN would be awesome.
Update: my bad there is this option , sorry

OKN Strips
View in iTunes
This app is designed for both iPhone and iPad
  • $2.99
  • Category: Medical
  • Updated:
  • Version: 1.3
  • Size: 0.9 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.

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