Good question,
 
Along the lines of blue light blocking, any PC tablet can run a program called Flux that filters out blue light waves coming from the screen, and we've received anecdotal reports that this helps eye gaze users who are using the device prior to bed (to not disrupt their sleep patterns in the evening). 
 
When I have seen eyegaze drift with the Eyegaze Edge, my first thought is to try eye drops.  I'm not sure about eye gaze systems across the board, but with the Eyegaze Edge, after using eye drops, the visible glint spot needed for pupil-center corneal reflection tracking is much more consistent.
 
James Brinton, M.A., CCC-SLP
Assistive Technology Coordinator
Speech-language Pathologist
LC Technologies, INC
Eye Tracking That Brings Power To Sight
10363 Democracy Lane
Fairfax, VA 22030
T: 703-385-8800
F: 703-385-7137
www.eyegaze.com
 
 
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From: "Krista Strait-Higgins" <xxxxxx@alsaiowa.org>
Sent: Tuesday, October 8, 2019 5:03 PM
To: "xxxxxx@alsa.simplelists.com" <xxxxxx@alsa.simplelists.com>
Subject: RE: Eye Tracker Drift
 

Recently we had a client who benefited greatly from using blue light blocking eyeglasses.

 

99F09BFC

Krista Strait-Higgins | Director of Care Services

The ALS Association Iowa Chapter

3636 Westown Pkwy, Ste 204 | West Des Moines, IA 50266

Cell:  515.468.9031

krista@alsaiowa.org | www.alsaiowa.org

 

The Vision of The ALS Association is to create a world without ALS.  Our Mission is to discover treatments and a cure for ALS, and to serve, advocate for, and empower people affected by ALS to live their lives to the fullest.

 

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From: xxxxxx@alsa.simplelists.com <xxxxxx@alsa.simplelists.com> On Behalf Of Amy Roman
Sent: Tuesday, October 8, 2019 4:00 PM
To: xxxxxx@alsa.simplelists.com
Subject: Re: Eye Tracker Drift

 

Hi Lisa and Chip and Amy,

Thanks. So removing the cursor or just proving feedback to people to be careful not to chase the cursor (ie. stare at the cursor as it keeps moving away) and making sure we have eye drops both seem like good ideas?  Taking a break may be another good option along with switching to larger targets.  Thanks!  Any others?  

 

Sincerely,

Amy Roman, MS, CCC-SLP
Augmentative Communication Specialist


Forbes Norris ALS Research and Treatment Center
& ALSA Golden West AAC Evaluation Center and Lending Library

1100 Van Ness Ave.
6th Floor
San Francisco, CA 94109

Cell (415)518-0592
Fax (415)375-4827

AmyandpALS.Com
Pinterest.com/AmyandpALS

 

 

On Tuesday, October 8, 2019, 11:45:05 AM PDT, Lisa Bardach <xxxxxx@gmail.com> wrote:

 

 

I have definitely seen this as well. I also feel that once it starts, it is compounded by people chasing the cursor. 

 

Lisa 

 

On Tue, Oct 8, 2019, 2:35 PM Amy Roman <xxxxxx@sbcglobal.net> wrote:

Hi,

Does anyone have any thoughts on eye tracker drift?  I believe this is the term used when over time, sometimes 5 minutes sometimes more, eye tracking loses its accuracy for a person.  I have a significant number of clients who complain about this and they use different eye trackers.  Does anyone have any ideas or tips for dealing with this or an explanation of what is happening.  I would assume it is eye fatigue but sometimes calibration helps and then 10 minutes later, without having moved, the drift starts again.

 

Sincerely,

Amy Roman, MS, CCC-SLP
Augmentative Communication Specialist


Forbes Norris ALS Research and Treatment Center
& ALSA Golden West AAC Evaluation Center and Lending Library

1100 Van Ness Ave.
6th Floor
San Francisco, CA 94109

Cell (415)518-0592
Fax (415)375-4827

AmyandpALS.Com
Pinterest.com/AmyandpALS