Thread Subject: Re: FPC: limited vision

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From: Gregg Vanderheiden
Date: Wed, Jun 06 2007 5:35 PM


Only thing I can think of is to require use by people without disabilities
(20/20 vision) from a distance of 7 feet from the display. It is not the
same as 20/70 but we don't really have something better that is quantifiable
that I have heard of.

It is what 20/70 literally means.

Anyone heard of a better method?


Gregg
-- ------------------------------
Gregg C Vanderheiden Ph.D.



> -----Original Message-----
> From: = EMAIL ADDRESS REMOVED =
> [mailto: = EMAIL ADDRESS REMOVED = ] On Behalf Of
> Debbie Cook
> Sent: Wednesday, June 06, 2007 6:17 PM
> To: = EMAIL ADDRESS REMOVED =
> Subject: [teitac-closed] FPC: limited vision
>
> >From the EWG:
> 1.1 B. At least one mode shall be provided that allows full
> use of product without requiring visual acuity greater than
> 20/70, and that allows audio and enlarged text output to work
> together or independently, directly or with users' AT.
>
> Discussion: No problem with requiring synchronous output. But
> no idea how to measure use with visual acuity of 20/70. And,
> is this possible to achieve on small closed products? We need
> a measurable expression for this?
>
> Debbie Cook
> WA Assistive Technology Program
> Box 357920
> Seattle, WA 98195-7920
> Phone: 206-685-4181
>
>


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