With age, I know very well that my vision has not improved. Between contact lenses and glasses camp, it is not a day goes by where I have to resort to the use of a magnifying glass, especially when I want to decipher the tiny characters in some modes of jobs, some food packaging or other as the information on a DVD case. It is very painful, especially since the printing technique are not always made to help us, often it is written in black on a dark background. So there for me, it's almost invisible. I already have two magnifying glasses, but the problem is that they are never in the right place. As I have not considered myself attached around the neck, the purchase of 2 additional magnifiers complements my device: with 4 it should get better. I must say I am very satisfied with this product not too ruinous. The optical rectangle of 35 mm x 40 mm meets my need for targeted and timely reading. The automatic lighting at the opening of the object is a real plus, from what I knew. The magnifier has a nice design. It is unobtrusive on a dresser, a small coffee table. It is very light and not very bulky (120 mm x 45 mm), so that in that moment, I keep one in my pocket. So ++++ versus need.