I have poor vision too. I don’t think there is any way to increase the cursor size besides sitting closer to the TV. I’m 2 feet away and sometimes still need to squint. If I change the UI Scaling all the windows get too large but the content doesn’t change size. I set the Font Size to Large but the difference is minimal.
The only places where font makes a difference is in the social widows ( mail, Local, Corp… )
Looks like one requirement to play EvE is to have 20/20 vision… or sit literally glued to the tv.