A lot of effort has been put into what are called "heads-up"
displays for aircrew.

I've heard of systems which track the gaze, initiate selected
action on detecting a sort of squint, which sounds like a pos-
sibility here. Perhaps a wink detector?

regards, Jack

Russell McMahon wrote:
>
> I have been asked to investigate providing a disabled user with the means to
> operate an existing book-page turner.

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