With a 25 dioptres magnification these clip on magnifiers from top quality lenses company hanoptik are perfect for close up work and hobbies as well as enlarging the small print in newspapers they are invaluable for seeing a splinter to threading a needle in fact you will wonder how you ever managed without a pair turning your regular glasses into powerful magnifying glasses they simply clip onto the frame of your existing glasses and the hinged middle allows you to easily flip them down when