BIGGER IS NOT ALWAYS BETTER
Another common mistake people make when purchasing a magnifier without consulting with a magnifier specialist is that they purchase the largest magnifier they can find. Some magnifiers are the same size as a sheet of notebook paper while others are as long as a ruler. These magnifiers provide minimal magnification and they reduce the contrast of the words being read. The laws of physics are such that the larger the magnifier, the lower the power. Thus, a magnifying lens that is 15 cm wide will have less magnification than a magnifier that is 7 cm wide. People with low vision who are searching for a magnifier must find the best balance between the size of the lens and the level of magnification.