About 18 years ago LC Technology developed an eye switch specifically for a patient of mine who had very limited eye tracking. If you contact them they will be able to assist you with this.  Recently LC  went to great lengths to help me trial this type of solution again with the person who had a few specific modifications needed. I certainly think LC is your best bet. 

Hello all,

 Has anyone ever set up eye gaze as a switch with Grid 3?

 I have a client that is not a super accurate eye gaze user. So I’m thinking that may be setting up with eye gaze as a switch would work for him. 

 The goal is for him to use eye gaze to operate a television. 

 I have not met him in person yet but I have been told that he is “Locked in” as a result of a stroke.  He does have eye movement, and some slight head movement, but no other volitional physical movement. 

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Sincerely,

Antoinette Verdone, MSBME, ATP

Founder, Rehabilitation Technology Specialist

ImproveAbility, LLC

Direct/Text: 512-497-6026

Main Office/Text: 512-522-1705

Email: xxxxxx@improveability.com

Web: www.improveability.com

Fax: 888-501-1009

3310 W Braker Lane, Suite 300-424, Austin TX 78758

TWC/HHSC Provider# 1-274278960-0-000

"One cannot consent to creep when one has the impulse to soar" -- Helen Keller