Reply by TheDane

I have two pair of glasses, both being progressive no-line bifocals. The only problem I had adjusting to them was when a tech at the optical shop messed up my prescription.

One pair with regular lenses I wear for everyday … I never wear these in the shop.

The other pair has safety lenses, and they stay in the shop (there is a holder for them right next to my ear-plugs on the bench).

-- Gerry -- "I don't plan to ever really grow up ... I'm just going to learn how to act in public!"