I think the size of the frames will occasionally interfere too. I find the bigger the frames the better. Less chance that the frame itself obstructs the infrared eye gaze component. Little "cat eye" frames seem to be the worst.

Julia McCaffrey, MS, CCC-SLP
Speech Language Pathologist III
Cedars-Sinai Medical Center

From: xxxxxx@alsa.simplelists.com [xxxxxx@alsa.simplelists.com] on behalf of jeremy linskell [xxxxxx@nhs.net]
Sent: Wednesday, February 25, 2015 11:54 PM
To: xxxxxx@alsa.simplelists.com
Subject: RE: Tobii I-15 eyegaze with glasses

Hi Kelly

Yes these could be issues, but another possible cause might anti-reflective coatings on the lenses…

Regards

jeremy

Jeremy Linskell CEng, CSci, MIPEM

Principal Clinical Scientist

Electronic Assistive Technology Service

Ninewells Hospital

Dundee

Scotland

tel: 01382-496286

fax:01382-496322

Editorial Board Member of Journal of Assistive Technologies

http://pierprofessional.metapress.com/content/121393

From: xxxxxx@alsa.simplelists.com [mailto:xxxxxx@alsa.simplelists.com] On Behalf Of Kelly C Rowe
Sent: Wednesday, February 25, 2015 8:36 PM
To: xxxxxx@alsa.simplelists.com
Subject: Tobii I-15 eyegaze with glasses

Hey all:

I was wondering if anyone had any trouble shooting ideas for glasses with the Tobii I-15 eye gaze system. I have a patient who has metal rimmed glasses who was looking at eye gaze, but we had difficulty calibrating him. I know that metal rimmed glasses and progressive lenses can be a problem with PRC eyegaze devices. Are there the same constraints with the Tobii devices? Also, any trouble shooting ideas for glasses would be welcomed. Thanks so much!

-Kelly Rowe, M.S., CCC-SLP

University of New Mexico Hospital

ALS Clinic

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