Yateem have a good range too, either in the City Centre or down in the souk.. also East optics opposite Al Rawnak main branch in the souk. Al Jabor are good, on the C ring, by Gulf Cinema, and have a special deal on a german type of glasses with v. good sun filters, don't know the name, but I see everyone wearing them these days!!
I'm not so fashion fastidious any more, so not up on what is going down!! so to speak...theres too much choice out there which argues with health versus chic! I'd go with health any day.