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OKN Strips

OKN Strips

Optokinetic Nystagmus Testing

579 ratings
25 reviews
#44 in paid Medical
๐Ÿ’ช Health & Fitness
๐Ÿฅ Medical
$3.99

Details

  • Released
  • Updated
  • February 19, 2012
  • January 23, 2020

Features

Developer

Thomas Alvarez
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OKN Strips screenshot #1 for iPhone
OKN Strips screenshot #2 for iPhone
OKN Strips screenshot #3 for iPhone
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About

This diagnostic and therapeutic app aids in evaluating neurological, otological, and ophthalmological disorders. It features moving strips to elicit nystagmus, a red desaturation test, and an Amsler grid for comprehensive eye examinations.

โœ“Optokinetic Nystagmus (OKN) elicitation
โœ“Red Desaturation test
โœ“Amsler Grid for eye testing
โœ“Adjustable strip speed, color, and width
โœ“Reverse strip direction
โœ“Toolbar hide/show functionality
Show original description

What users say

Summarized from real user reviews of OKN Strips. Based on 579 reviews and a 4.6/5 average, it highlights the 10 positives and 10 negatives reviewers mention most about this Medical app.

Positive things

  • ๐Ÿ‘Helpful for eye therapy
  • ๐Ÿ‘Reduces eye strain and dizziness
  • ๐Ÿ‘Effective for nerve/muscle paralysis
  • ๐Ÿ‘Great for babies' OKN assessment
  • ๐Ÿ‘Good for Amsler grid use
  • ๐Ÿ‘Outstanding customer support
  • ๐Ÿ‘Simple and perfect functionality
  • ๐Ÿ‘Works quite well
  • ๐Ÿ‘Fast response to issues
  • ๐Ÿ‘Helps with cybersickness symptoms

Negative things

  • ๐Ÿ˜žNo way to adjust speed/style
  • ๐Ÿ˜žCannot customize direction
  • ๐Ÿ˜žLacks options for smooth pursuit/saccades
  • ๐Ÿ˜žExpensive for basic functionality
  • ๐Ÿ˜žDifficult to uninstall
  • ๐Ÿ˜žColor doesn't change in red desaturation test
  • ๐Ÿ˜žRed-Black inversion doesn't work
  • ๐Ÿ˜žNo instructions provided
  • ๐Ÿ˜žNavigation between features is difficult
  • ๐Ÿ˜žSlower speed option needed
See all reviews

What's New in OKN Strips

2.1

January 23, 2020

Dark Mode Support iOS 13 Support and Fixes

Charts

Top Paid

๐Ÿ“‰ย 44-5

Medical

This app dropped -5 positions in Medical chart.

Last updated on August 7, 2026.

User reviews

Most RecentHighest RatedLowest Rated

Missed opportunity

Should have a recording feature
Dylan Del PapaDylan Del Papa

Itโ€™s good

I like it!
MabuchiMotorMabuchiMotor

Cannot customise

Thought this would be helpful but there is no way to adjust the speed and style. Very disappointing - use the free web version instead!
Be careful of thisBe careful of this

Good, but needs some improvement

My vision therapist recommended this app to help with eye stretches. Itโ€™s good, but I wish I could change the direction the bars move. I have to do this exercise with a patch on because my eyes donโ€™t track together. So Iโ€™d like it if the bars could travel left or right and up or down.
JobbbieBoJobbbieBo

Response from developer

Hi JobbbieBo, You can change the direction of the bars by swiping on the screen in the opposite direction against how they're moving. Also if you lock screen rotation on your device, you can physically rotate your device to control how the bars are moving.

No adjustments

Would have been nice to choose some things like smooth pursuit, saccades, vor
BgirlzBgirlz
See 20 more reviews

User experience

๐Ÿž

Reported Bugs

3 issues

Red desaturation test color doesn't change

Bug

Red-Black inversion doesn't work on grid test

Bug

Cannot go back to menu from OKN strips without restarting app

Bug
โœจ

Requested Features

8 requests

Recording feature

Feature

Adjustable speed and style

Feature

Change direction of movement (left/right, up/down)

Feature

Options for smooth pursuit, saccades, VOR

Feature

Horizontal stripes option

Feature

More peer-reviewed studies

Feature

Make technology better known

Feature

Slower speed option

Feature

FAQ

What is OKN Strips used for?

OKN Strips is a diagnostic and therapeutic app designed to elicit Optokinetic Nystagmus (OKN). This is used for the evaluation of neurological, otological, or ophthalmological disorders. It also includes tools for red desaturation and Amsler grid eye tests.

What are the key features of OKN Strips?

Key features include the ability to elicit OKN with adjustable moving strips (speed, color, width, direction), a red desaturation test, and an Amsler grid for comprehensive eye examinations. Users can also toggle the toolbar for a cleaner interface.

How much does OKN Strips cost?

Based on the provided information, OKN Strips is a paid application. There are no mentions of in-app purchases or advertisements, indicating a one-time purchase model.

What devices is OKN Strips compatible with?

OKN Strips is available for iPad, iPhone, and iPod Touch devices. It is described as a top-selling diagnostic and therapeutic app for these platforms.

How can I use the Amsler Grid feature?

The Amsler grid feature is accessed via an icon on the bottom toolbar. You can use the grid to perform eye tests, and the buttons on the toolbar allow you to change the color combinations of the grid for different testing scenarios.