I have a prescription that requires progressives or bifocals. I had been using reading glasses because my last glasses, progressives, were difficult to see thru when going down stairs and such. That was before I met Brian and experienced the technology he uses. Wow These glasses are awesome, I could not be happier. The line between close viewing and distance cannot be discerned readily. I am impressed. The superior system he uses to measure eye focal points is beyond my keen but I am happy to reap the benefits. One hour optical this is not, personalized service resulting in quality lens I can live with, yea baby, and from and independent local business owner to boot.