I don't often say a post is a must-read but I think this one is. Texting etiquette for low vision by @veron4ica: https://veroniiiica.com/2017/08/04/texting-etiquette-for-low-vision/
The comments go across most of the digital channels.
SR

Have you had a spooky @Uber or @Lyft experience with your #ServiceDog? Tell us about it. https://buff.ly/2Eq8Emz