“Technology is the use of increasingly accurate, self-evident, and reproducible information to replace energy and matter.

The benefit of technology is NOT in what it lets people accomplish, but in how it improves the character of people.”


“As a culture we are only as good as our memory.  As a species we are only as good as our vision.”


Concept Sources


 “Technology is our word for stuff we don’t understand.”

- Douglas Adams


 “Any sufficiently advanced technology is indistinguishable from magic.”
- Arthur C. Clarke’s Third Law


The Dyop® Revolution

Dyop® Summary

Acrobat Document

Acrobat Document



The Future of Vision Testing

Acrobat Document

Barry Santini, “20/20” magazine, February 2012

ViewChroma™ Lenses


Origin of Dyops

(Acrobat Document)





Cyclops – The World’s Largest Vision Test Device

Acrobat Document

Cyclops is a 10 foot diameter Dyop™ image used at Boy Scout Camp Rainey Mountain to determine

the line of sight distance from Big Rock to the Camp Administration Building.

The rotating Dyop™ segments were moved inward to reduce the rotating image diameter in 3 inch increments.

The Dyop™ Detection Threshold Image diameter of 9 feet 6 inches indicates a Big Rock Viewing Distance of 3800 feet.

(Assistance and permission thanks to the Staff and Leadership of North East Georgia Boy Scouts.)



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@DyopVision.com

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

Copyright©2023 DyopVision™ Associates.  All Rights Reserved.