Do you have to hold your phone "further" away to see it? No? Then you haven't crossed the line yet. You are like the roller coaster after it has crested the hill, the backend is still holding on, but you are starting to see where you are heading.
Yep, I'm fighting the need for reading glasses. They look like a giant pain in the ass. But then again, my husband has his text messaging app set to a really big font, so I figure he's way worse off than me.