I have worn glasses for more than 30 years. And have struggled with all kinds of lenses and frames through the tough environments I live and work in.
These lenses appear to be one of best decision I have made.
The clarity of the lens , and correct color reproduce, ( excellent Chromatic aberration).
And easy to keep clean
As an avid photographic enthusiasts. You learn the glass you use to take pictures with can make the difference. That is obvious in the technology of these lenses.
Clear ,correct color, light weight and easy to keep clean .