I’ve had my glasses now for about 6 months and have used them daily in a dusty office environment. Before these glasses, I switched constantly between “occupational” glasses (mid-range) for computer work and bifocals when called to the shop floor. With these glasses, I can immediately adjust to the appropriate distance. Reading music in a concert format is also much easier, now I can adjust my glasses to the varying distance to my music as opposed to attempting to adjust my distance to what I need to read. The only thing I’ve found the bifocals better at doing is a training class or meeting, where I need to constantly switch within a sentence from near to distance vision. Otherwise, people are getting used to my “retro-look” glasses.