A new scientific study demonstrates that the human brain's plasticity can be used to overcome the effects of aging eyes requiring reading glasses by a process called collinear facilitation by retraining the neurons in the occipital lobe to recognize visual detail lost through the lack of focus in the eye.
The process takes a few weeks of visual training 3 times a week for 15 minutes each. The program is an ongoing program, so just like any exercise program it must be performed regularly.
The company, GlassesOff.com, offers the program through an application for either the iPhone, the iPad, or as an Android application. It's not cheap at $60, and requires an ongoing subscription, but you can try the program for 2 weeks free to see if it works for you.
This is supposed to be a peer reviewed science.