Been doing some research on occupational progressives. For quite some time we had set the top of a progressive for someone's computer range and reset the ad accordingly. While it achieves success as an occupational pair of glasses it is not a manufacturer designed occupational lens. Specifically how Shamir (Office, Computer & Workspace) and Zeiss (Book, Desk & Room) each have a portfolio of lenses within the occupational area. Has anyone fit these lenses consistently? Endorse one manufacturer over the other? Would appreciate any useful feedback. Thanks. Would like to cross over into fitting the occupational lenses than making our own accommodations to traditional progressive designs.