I run a startup whose technology is used as an assistive technology for people with dyslexia (and also as a speed-reading aid for non-dyslexic readers). Some reading specialists have suggested that our tool could be used as a litmus test for certain types of reading issues, including dyslexia. For some (not all) people with dyslexia, the first time trying our line-wrapping color gradients is life-changing. (For most people who use it as a speed-reading tool, it's a cool lifehack, but not a quantum leap.)
She can try it by just looking at the demo on our website. [1] Protip: we're going to launch a fully-functional, free, version of our browser plugin later this week. It will require occasional tweeting, but not a Twitter auth or any PII gathering whatsoever.