I've needed reading glasses/contacts (presbyopia) ever since I've had my iPad. In many respects, a device like the iPad is ideal for those of us who need a little assistance to see smaller text.
For one thing, the brightness of the screen makes reading in dim lighting conditions (where your pupils are wide open, and close focusing is much more difficult) a lot easier.
Web browsing, picture viewing, etc. is helped by the ease with which you can zoom onto fine details.
Most text-reading apps: Newspaper, magazines, iBooks, etc. you can set the text size.
The fact that the iPad does not have "Retina" class resolution is a TOTAL NON-ISSUE for people who need reading glasses. And anyone with an ounce of common sense can understand why this would be.