The Eyegaze Edge allows users with CP like Cassandra to participate in everyday life, while adapting to user positioning and angle seamlessly.


Originally published by Eyegaze



Cerebral Palsy (CP) is a condition marked by impaired muscle coordination (spastic paralysis) and/or other disabilities impacting communication, typically caused by damage to the brain before or at birth. Many children and adults with CP are currently using the Eyegaze Edge to participate in school, from kindergarten through college and in the workplace.

Eyegaze Edge® Features
Simple Setup and 15-Second Calibration
Eye Re-Aquisition in 1/30 Second
Works at Many Different Angles

Using the Eyegaze Edge® with Cerebral Palsy

Individuals with CP are most successful when positioned and supported with proper wheelchair hardware. Taking into account the individual’s body movement, the Eyegaze Edge reacquires their eye in 1/30th of a second if they move out of the camera’s field of view and return. This reacquisition of the eye is so fast that the individual does not perceive it. 

The eyes become a portal for basic communication.

The Eyegaze Edge is also able to accurately predict their gaze point at indirect angles to their face, meaning they can operate it even if they are leaning to the side, without changing the angle of the screen. For many individuals with CP this feature is extremely valuable, often eliminating the need to constantly re-position the screen or recalibrate the Eyegaze system.

A variety of eye movement problems are also often associated with CP, most commonly alternating strabismus. It may be necessary to partially patch one eye for accurate use. For those who have uncontrollable head motion beyond available wheelchair supports, they may not find Eyegaze operation always acceptable. 

The eyes can be seen as an extension of the brain, and controlling them does not cause movement in other parts of the body once the user becomes relaxed. Because controlling the eyes does not elicit a movement response in the body, many people with CP are proficient Eyegaze users.

Nancy Cleveland, RN, BSN
Medical Director

My son Jason is 16 years old and he has cerebral palsy… ‘Dad, I need you’ is one of the many things I hear on a daily basis that I never imagined I would hear. Today I couldn’t imagine a life without this device… They have given my son a platform to stand on that can lead him to his own independence. 

Scott, California



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