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eVision Smart Optics: Breaking the Vergence-Accommodation Conflict Barrier

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Joel Zychick, CEO Computer-based interaction with patients and doctors is the new reality of modern medicine due in part to COVID-19. The promise of Virtual and Mixed Reality as a more immersive tool for medical care has been elusive because of a significant design constraint. This issue is the focus conflict caused by Virtual and Mixed Reality in the human brain. This is known as the Vergence-Accommodation Conflict (VAC) caused by the confusion our mind faces as it processes a virtual reality image. The brain naturally knows to refocus the eyes for different visual distances. As a person uses virtual reality, the brain gets confused by an artificial sharp visual image at a distance which would typically require the brain to refocus the eyes.

As the eyes are not required to refocus, this results in nausea, fatigue, headaches, and discomfort.

Today, there is a solution to the problem—electronic liquid crystal lenses that help reduce or resolve VAC.

Virtual reality will allow doctors to diagnose injuries in a 3D environment

This technology has made quantum leaps from ultra-small devices developed for electronic contact lenses to 30mm lens diameter and scaling up to 50mm. Shifting focus is also necessary for next-generation mixed reality devices that use virtual and augmented reality technology to create an environment where physical and virtual objects can exist and interact in real-time. These devices need electronic shifting focus to ensure sharp images in the user's field of view. "Our technologies, including LC (Liquid Crystal) electronic technology, can help overcome some of the greatest challenges of projecting visuals in a virtual environment," says Joel Zychick, the CEO of eVision Smart Optics. He notes the same issue is resolved in transparent eyewear used with virtual reality using eVision patented HUD technology. Unlike Virtual Reality non-transparent goggles, the user needs to focus on data projected on the transparent lens in the user's field of view without compromising distance vision.

A working prototype of the advanced solution

On the eVision website's homepage, a video taken through a 30mm lens shows liquid crystal electronic focus shifting across different focus zones. Seamless, accurate focus, as displayed in the video, is key to success when projecting images in the viewer's field of vision. The same technology, available for license in a smaller form factor, is the eVision Electronic Contact Lens (ECL).

"Our technologies, including LC (Liquid Crystal) electronic technology, can help overcome some of the greatest challenges of projecting visuals in a virtual environment"

Virtual reality will allow doctors to diagnose injuries in a 3D environment. Surgeons will have access to scans and data in their field of vision for critical procedures. We all understand the need for enhanced tools to treat patients in a more immersive environment without the risk of transmitted disease.

We often take for granted the role of vision as one of the most powerful tools in medicine. Advances in vision technologies, including microelectronics, liquid crystal focusing, HUD, and in-frame sound input, will make our vision an even more potent medicine tool.

- Alex D’souza
November 06, 2020

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Company
eVision Smart Optics

Headquarters
Sarasota, FL

Management
Joel Zychick, CEO

Description
e-Vision is a recognized global leader in the development and advancement of patented technologies that enhance vision. On the eVision website's homepage, a video taken through a 30mm lens shows liquid crystal electronic focus shifting across different focus zones. Seamless, accurate focus, as displayed in the video, is key to success when projecting images in the viewer's field of vision. The same technology, available for license in a smaller form factor, is the eVision Electronic Contact Lens (ECL)