Macular generation affects the central field of view essential to reading. These 2 magnifiers enlarge text so that the letters/words can be inferred even with the central portion missing. At $9.95 these are intended as a low cost solution but consult your opthalmologist/optometrist for his/her opinion as to whether they can help you.
The smaller magnifier, 30mm (1.25") has three lenses which can be combined to do 5X, 10X or 15X magnification. The larger magnifier, 50mm (2") can enlarge text by 10X. You may find that one works better than the other depending on what you are trying to see.