Progressive lenses have three prescriptions in one pair of glasses. That allows you to do close-up work (like reading a book), middle-distance work (like checking out a website on a computer), or distance viewing (like driving) without needing to change your glasses. more...
These inexpensive folding eyeglasses deliver easy & efficient viewing used primarily by Diamond/Gemstones polishing operators. Available in Various magnification & sizes. 5x, 8x & 10x.more...