Maybe the iPad's bigger screen solves this problem, but if you find yourself squinting at text on your iPhone or iPod touch you can easily enlarge it for easier viewing by altering your accessibility settings. Here's how.
- Open your iDevice's Settings app.
- Tap the General section.
- Tap Accessibility.
- Tap Large Text.
- Choose a new text size that suits you better.
This is a very easy setting and not one that's commonly known but exceptionally helpful for those with less-than-perfect eyesight.
How To Increase Your iPhone's Text Size [MacLife]