Optical quality lenses are made from high quality plastics that meet certain ophthalmic standards. Free of waves, imperfections and providing true visual clarity, optical quality lenses allow you to see clearly effortlessly. If your eyes are struggling to see through a lens that is less than totally clear you will tire easily, may get headaches amd even feel dizzy. If you don’t want to spend a lot of money on your readers because you tend to lose them or you need several pairs; just get a few good pairs of reading glasses for those times that you want to read for more than a few minutes. Drug store readers may suffice for quick reads…a label, a menu…but when you need to read something for anything longer, choose optical quality reading glasses for noticeably clear vision that will make all the difference in your comfort and use.