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Virtual Dictionary

Digital Eye Fatigue

Digital Eye fatigue, or DEF, is a disorder created by gazing at a digital image for too long a time. The ocular muscles constantly flex to refocus perceived distance. Unfortunately, the perceived distances in a 3D landscape projected on a 2D display system, are not physically further away. Additionally, the eye focuses on the hard edge of an image, but digital images don't have a clean edge. As a result, the focus drifts forward and back, causing eye fatigue.

This results in the eye?s muscular systems constantly correcting themselves against natural behaviour, and additional processing overhead for the brain as data that should be in focus, is not.

Dry eyes, blurry vision and headaches are among the persistent symptoms that represent DEF, and continue for significant periods after cessation of use of a digital display.

See Also: Computer Vision Syndrome

Below, we offer a selection of links from our resource databases which may match this term.

Related Dictionary Entries for Digital Eye Fatigue:


Computer Vision Syndrome



Digital Eye Fatigue

Direct Retinal Display

Virtual Retinal Display



Resources in our database matching the Term Digital Eye Fatigue:

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The first generation of digital natives - children who were born into and raised in the digital world - are coming of age, and soon our world will be reshaped in their image. Our economy, our cultural life, even the shape of our family life will be forever transformed.

In Growing Up Digital, Don Tapscott revealed how the digital world created a generation that thought, played, and related to their world in a way radically different from that of their parents. In a fascinating follow-up to his seminal work, Grown Up Digital revisits the Net Generation as the eldest of its members turns 30, enters the workforce and marketplace, and establishes their roles as life-long learners and contributors to society.

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What's Delaying Digital Health Records?
The director of the U.S. Office of Health IT Adoption explains why it's so hard to get doctors to go digital.

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Inside The Digital Toy Factory - Developing To Deadlines
Denki calls itself a "digital toy factory," not a game developer. In this in-depth post, co-founder Colin Anderson discusses the studio's thoughts on process, including the importance of change, the scientific method, and influences from the old Hollywood studio system as well as theatre.

My Mother Was a Computer explores how the impact of code on everyday life has become comparable to that of speech and writing: as language and code have grown more entangled, the lines that once separated humans from machines, analogue from digital, and old technologies from new ones have become blurred.

Not a platform or modelling software specific book, Building a Digital Human is Ken?s second book, and much like the first, it takes you through the basics of creating the 3D forms, in a patient, kind, step by step manner, demonstrating techniques which really aid the beginning to intermediate modeller.

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Podcast: Parallel Worlds: Explorations in Second Life
This podcast is basically concerned with photography in the virtual. It deals with as they quote "the digital revolution in photography". Pushing beyond technologies such as photoshop to digitally tweak images, this 'cast discusses the possibilities that the photography digital revolution expands as far beyond digitally remastering, as motorised transport extends from the capabilities of the horse.

Not a platform or modelling software specific book, Modelling Digital Dinosaurs is Ken?s first book, and it takes you through the basics of creating 3D representations of something which has fascinated and captivated for centuries ? dinosaurs. The book does this in a patient, kind, step by step manner, demonstrating techniques which really aid the beginning to intermediate modeller. Contains a free copy of Amapi version 1.5 on the CD in case the reader does not have a 3D modeller.


Industry News containing the Term Digital Eye Fatigue:

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The new Gunnar Optiks i-AMP digital eyewear claims to be able to significantly increase the lengeth of time an individual may spend using a digital display system without wear and tear on the eyes,. Using a combination of lens materials, co...

Carbon nanotubes have a springy side. Nanotubes keep bouncing back after being compressed repeatedly. This has opened the way for their use in artificial muscles. Such muscles would be used to power robots, prosthetic limbs and artificial t...

Of the 15 million people around the world who have survived poliomyelitis, up to 80% report progressive deteriorating strength and endurance many years after infection, a condition known as post-polio syndrome (PPS). Researchers in Italy fr...

A multicenter research team led by Cedars-Sinai neurologist Nancy Sicotte, MD, an expert in multiple sclerosis and state-of-the-art imaging techniques, used a new, automated technique to identify shrinkage of a mood-regulating brain structu...

South Korea will offer gamers and other Internet addicts free software from next year to limit the time they spend on the web, the prime minister's office said on Tuesday.

The government, which estimates the highly wired nat...