Perfect until they're not
Work perfectly...the only problem with all of Adlens adjustables is their fragility. The plastic lenses scratch easily, tiny grains of dust or pollen eventually work their way in-between the double lenses, and after owning some 5 or 6 of these glasses, I have yet to figure out how to separate the lenses for a thorough cleaning and then PUT THEM BACK TOGETHER. Also, do not exercise while wearing these glasses; a few drops of sweat will also work their way between the two lenses and coat them with a dull film after the sweat evaporates.<br /><br />Having given all of these caveats, I still give the glasses 5 stars because THEY WORK SO WELL before they inevitably go bad, and replacements are very, very cheap.
Rating: 5 stars