The Problem Unlike conventional bifocals or trifocals, progressive addition lenses  or "PAL's" utilize laser engravings as a way to establish critical information such as fitting reference points, add power, lens material, manufacturer and specific model. These engravings are often faint on new lenses, obscured by scratches on older lenses or difficult to recognize on tinted or anti-reflection coated lenses, with the naked eye; a task even more daunting  for the inexperienced or presbiopic observer. Lens manufactures have periodically reduced or amplified engravings since the introduction of  PAL's over three decades ago. Both have proven to be unsatisfactory. Very faint engravings are difficult to identify, while deeper engravings may be noticed by the wearer, or worse by those looking at the wearer's glasses! Solving The Problem The PAL-ID, is an instrument specifically designed for fast, easy identification of all markings, regardless of  lens condition. The patented imaging  system is designed to illuminate, enlarge and enhance even the faintest engravings. The PAL-ID makes it possible for even the least experienced operator to locate and identify markings in a matter of seconds!