Visualizing Low Vision on Mobiles

A good test of accessibility for a cell phone is 200% the critical point
size CPS, minimum point size than can be read at optimum speed.  The main
problem with WCAG 2.0 sc 1.4.4 (Resize Text) is that it does not specify
200% of what.  The answer is simple, the smallest text size a normal person
can read at optimum seed.  That is between 10 and 12 pt (actually Tinker
found a max at 9pt-10pt a drop off at 11pt and another max it 12). In the
mobile world normal CPS this should of vital importance in addressing the
need of the target audience and 200% CPS should indicate how well the
structure works with WCAG 2.0 conformance.  There are two ways to do
this.  Just
zoom 200% or input a minimum point size of 20pt in the browser.  Both
settings would be instructive to developers.  Poorly designed sites will
return ugly results.


Received on Friday, 31 August 2012 00:33:41 UTC