Does he have any vision at all? When my dad's vision started dwindling years ago, we got him a tabletop magnifier, sort of like this one: https://cdn.allaboutv

Does he have any vision at all? When my dad's vision started dwindling years ago, we got him a tabletop magnifier, sort of like this one: https://cdn.allaboutvision.com/images/ev-merlin-book-750x500.jpg https://cdn.allaboutvision.com/images/ev-merlin-book-750x500... Dad used his mostly for reading, but it would work equally well for hitting buttons on a phone (but obviously is not portable). He didn't need to use his for the phone since he already had a big button amplified phone for his landline. Back then it had a camera that fed a CRT, I'm sure there are much better devices today, or you could probably make your own with a webcam and a big screen monitor or TV.