Introducing the Dyop®

The “Revolutionary” Method for Measuring

Visual Clarity (Acuity)

Helping the world see more clearly, one person at a time.

 

 

 

 

 

 

 

 

 

 

 

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Click here to return to the main Dyop page.

 

 

 

The following YouTube videos should help explain the mechanics of vision and how a Dyop works.

1 - Dyop Vision - How We See - The basic mechanics of vision
https://www.youtube.com/watch?v=3sCTQdKfHjk

2 - Dyop Vision - The Dyop Solution - How Dyop testing works
https://www.youtube.com/watch?v=n01N3vRbniw

3 - Dyop Vision - The flaws of Snellen - (and static optotypes) and their contribution to myopia
https://www.youtube.com/watch?v=euFuaBNnDG8&t=6s

4 - Dyop Vision - Why We See In Color - How Chromatic Triangulation regulates acuity
https://www.youtube.com/watch?v=iOdXDxXHYvA

 5 - Dyop Vision - Color Vision Variances - Using a Dyop to screen for Near Vision Stress
https://www.youtube.com/watch?v=l9hJwA2LJdU

 

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A complimentary Research-Only copy of the Dyop (Windows) Professional test is available for your use.

Please send your contact information to Allan@dyop.org to receive a copy of the Test and License Key.

Include: Name, email address, phone number, physical address, company and/or university, anticipated research project.

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See the document https://www.dyop.net/documents/Dyop_Update_Guide.pdf with screen shots for guidance.

To install the Dyop tests, when you receive the file, download the Release-V12.20.zip file into your \Downloads folder.

Go to the \Release SUB-FOLDER in the \Release-V12.2 zip program folder and open the Dyop.exe file

which will create a NEW (unzipped) \Release-V12.2 folder and \Release subfolder with the actual test.

Go to the UNZIPPED \Release-V12.2 folder and the \Release SUB-FOLDER and open the Dyop.exe file which is the actual Dyop program.

Once you initially install and open the Dyop program, you need to copy and paste the issued License Key

in the startup panel to initialize using the Dyop tests. 

Press the F-10 key to go to the Setup Menu to calibrate the basic Dyop diameters per your monitor and patient viewing distance. 

Save those settings, close the setup menu, and proceed to enjoy the plethora of the Dyop test permutations.

 

Other Dyop Reference Files:

Dyop Users Guide: http://www.dyop.net/documents/Dyop_UsersGuide.pdf

Dyop Test Instructions: http://www.dyop.net/documents/Dyop_Test_Instructions.pdf

Dyop Basics: https://www.dyop.net/documents/Dyop_Vision_Test_Basics.pdf
How We See: https://www.dyop.net/documents/How_We_See.pdf
Dyop Refraction Procedure: https://www.dyop.net/documents/Dyop_Refraction_Procedure.pdf
Dyop Color Response Record Form: https://www.dyop.net/documents/DyopColorMatrix_Response_Form.pdf

Additional Dyop Documentation

Induced Dyslexia

https://www.dyop.net/documents/Induced_Dyslexia.pdf

 

Infant Acuity Poster

https://www.dyop.net/documents/Dyop_Infant_Acuity_Measurement_Poster.pdf

 

Infant Acuity Documentation

https://www.dyop.net/documents/Infant_Acuity_Test_Proof-of-Concept.pdf

 

Comparison of the Dyop Infant Acuity Test Backgrounds

https://actascientific.com/ASOP/pdf/ASOP-08-0830.pdf

 

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The Dyop® (Dynamic Optotype™) tests and concept are covered under U.S. Patent US 8,083,353

and International Published Patent WO 2011/022428.

for further information contact: Allan Hytowitz at Allan@Dyop.org

5035 Morton Ferry Circle, Johns Creek, GA, 30022   /   404-281-7798

Copyright ©2025 DyopVision™ Associates.  All Rights Reserved.