- Thu, 8 Nov 2007 at 5:32 pm · For some strange reason, I’m suddenly finding myself in the mood to do another round of accessibility testing on this site, now that I’ve tweaked things here and there. I thought I’d start that out using Vischeck’s free online vision test, since this has been a topic I’ve dedicated considerable time to for many years. Here’s a Deuteranope simulation, Protanope simulation, and a Tritanope simulation. Of course, I would have a great deal of work to do to this site to make it pass a 508 Bobby scan. The template itself is extremely inaccessible in that regard — though the on board readers seem to do relatively well, considering. There’s always room for improvement. · (0)