Jeremy,
I didn’t think about the lens coating! I recommended an eye exam to provide an updated reading and see if there are new ocular issues.
did trial with one eye with no success. I tried the TOBII I-15. Other suggestions?
Thanks
KJ
From: xxxxxx@alsa.simplelists.com [mailto:xxxxxx@alsa.simplelists.com] On Behalf Of jeremy linskell
Sent: Tuesday, October 21, 2014 6:43 AM
To: xxxxxx@alsa.simplelists.com
Subject: [EXTERNAL] RE: Quadriplegic patient
Hi Kelli
Although bi-focals are obviously a really big issue fro eyegaze systems, actually, anti-reflective coatings on the lenses can be an even bigger problem. And I would also like to agree with observation that all the eyegaze systems have slightly different performances and it may be a case of trying him with a range of systems. I also notice that you haven’t listed single eye sensing as one of the options you have tried.
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
From: xxxxxx@alsa.simplelists.com [mailto:xxxxxx@alsa.simplelists.com] On Behalf Of Lisa Bruening
Sent: Tuesday, October 21, 2014 11:38 AM
To: xxxxxx@alsa.simplelists.com
Subject: Re: Quadriplegic patient
Hi Kelli,
I am also wondering which eye gaze device you tried as there is quite a bit of variability in the eye gaze control devices.
I have known VA to pay for laser eye correction treatment in an effort to remove the need for bifocals... Perhaps that would be an option, however you stated that you could not get him to calibrate even without the bifocals.
Like Antoinette, I wonder if you were able to calibrate to use the device?
Finally, there are many medications which affect pupil dilation that also may interfere with calibration.
Sent from my iPhone
On Oct 20, 2014, at 3:18 PM, "Johnson, Kelli M." <xxxxxx@va.gov> wrote:
Greetings and happy Monday. I know this AT forum is typically focused on our PALS but I’d like your perspective regarding this challenging patient.
I have a veteran with C1-C4 complete Quadriplegia using a tongue switch to independently operate his Permobil 300. He has a Blom Trach speaking valve system in place although his average utterance length varies from 0 to 5 or 6 words. Many attempts have been made by his first speech pathologist and resp therapist to change his vent settings and increase his utterance length. He has tried to use a head mouse without success due to limited head ROM. I had him in clinic today to calibrate him for eye gaze – no success. Even with changing the positioning of his bifocals, taking his glasses off, changing the color of the background and dot, changing the size of the calibration dot, and adjusting the lights in the room – no avail.
I’m hesitant to recommend a tongue switch for access to a communication device since he is also using his tongue to operate his Permobil chair (he is in the chair approx. 10-11 hours per day) and he is eating some foods and liquids by mouth. What other access methods could be considered for this patient?
Thank you so much. I truly value your insight!
Kelli M. Johnson, M.S. CCC-SLP
Speech-Language Pathologist
James H. Quillen VAMC (126)
Mountain Home, TN 37684
Phone: (423) 979-2910
Fax: (423) 979-3404
His mercies are new each day…
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