Making sure you have sufficient light and that it is properly directed is critical for close-up work. For example, a flexible light, such as a gooseneck lamp, can provide good illumination for reading or work. Your posture, the position of your light and where you hold what you want to see all play a role in your ability to see. Sometimes holding reading material closer to your eyes with a high wattage light focused on the words can make a big difference. Special eyeglasses - Bifocal or trifocal glasses that are stronger than normal may help.
Prism glasses can help the good spots in one eye cancel out the bad spots in another.
They include video reading systems that enlarge type 60 times, auto-focus spectacle telescopes, and talking computer systems.