There are multiple screen magnifiers - let me look up the ones I've tried.
Also there is a registry hack that allows you to use the 'wheel' to zoom in some of the other apps. I'll look that up for you too.
But - fair warning - I still need to carry around and use a pair of reading glasses at various times with this phone
- and I already wear bifocal glasses! Yes, I look goofy with the reading glasses over my normal glasses - but at least I can see! And I don't know how old you are - but just wait........